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Author SHA1 Message Date
Jeff McCune
aad652c99b publish: add gha workflow to publish images with ko 2024-07-29 16:33:54 -07:00
1324 changed files with 102163 additions and 94216 deletions

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@@ -1,13 +0,0 @@
{
"permissions": {
"allow": [
"Bash(cd:*)",
"Bash(holos:*)",
"Bash(cue:*)",
"Bash(git commit:*)",
"Bash(git add:*)",
"Bash(make:*)"
],
"deny": []
}
}

View File

@@ -5,358 +5,84 @@
"mdx"
],
"words": [
"acmesolver",
"acraccesstoken",
"acraccesstokens",
"admissionregistration",
"alertmanager",
"alertmanagers",
"anchore",
"anthos",
"apiextensions",
"apimachinery",
"apiobjects",
"apiservers",
"applicationset",
"applicationsets",
"appproject",
"appprojects",
"argoproj",
"argumentless",
"authcode",
"authorizationpolicies",
"authorizationpolicy",
"authpolicy",
"authproxy",
"authroutes",
"autoload",
"automount",
"automounting",
"autoscaler",
"balancereader",
"blackbox",
"buildplan",
"buildplans",
"Buildx",
"builtinpluginloadingoptions",
"cachedir",
"cadvisor",
"cainjector",
"CAROOT",
"certificaterequest",
"certificaterequests",
"certificatesigningrequests",
"chartmuseum",
"clientset",
"clsx",
"clusterexternalsecret",
"clusterexternalsecrets",
"clusterissuer",
"clusterissuers",
"clusterrole",
"clusterrolebinding",
"clustersecretstore",
"clustersecretstores",
"clusterwide",
"Cmds",
"CNCF",
"CODEOWNERS",
"compinit",
"componentconfig",
"configdir",
"configmap",
"configmapargs",
"connectrpc",
"cookiesecret",
"coredns",
"corev",
"CRD's",
"crds",
"creds",
"crossplane",
"crunchydata",
"ctxt",
"cuecontext",
"cuelang",
"customresourcedefinition",
"daemonset",
"deploymentruntimeconfig",
"destinationrule",
"destinationrules",
"devel",
"devicecode",
"distroless",
"dnsmasq",
"dscacheutil",
"ecrauthorizationtoken",
"ecrauthorizationtokens",
"edns",
"endpointslices",
"entgo",
"envoyfilter",
"envoyfilters",
"errdetails",
"errgroup",
"etcdsnapshotfiles",
"externalsecret",
"externalsecrets",
"fctr",
"fieldmaskpb",
"fieldspec",
"flushcache",
"fluxcd",
"fsys",
"fullname",
"gatewayclass",
"gatewayclasses",
"gcraccesstoken",
"gcraccesstokens",
"gendoc",
"generationbehavior",
"generatorargs",
"generatoroptions",
"genproto",
"ggnpl",
"ghaction",
"githubaccesstoken",
"githubaccesstokens",
"gitops",
"GOBIN",
"godoc",
"golangci",
"gomarkdoc",
"googleapis",
"goreleaser",
"gotypesalias",
"grpcreflect",
"grpcroute",
"grpcroutes",
"grpcurl",
"hcfg",
"healthchecks",
"healthz",
"helmchartargs",
"helmchartconfigs",
"helmcharts",
"Hiera",
"holos",
"holoslogger",
"horizontalpodautoscaler",
"horizontalpodautoscalers",
"Hostaliases",
"Hostnames",
"htpasswd",
"httpbin",
"httproute",
"httproutes",
"iampolicygenerator",
"incpatch",
"Infima",
"intstr",
"isatty",
"istiod",
"jbrx",
"jeffmccune",
"jetstack",
"jiralert",
"Jsonnet",
"Kargo",
"kfbh",
"killall",
"kubeadm",
"kubeconfig",
"kubelet",
"kubelogin",
"kubernetesobjects",
"kubeversion",
"Kustomization",
"Kustomizations",
"kustomize",
"kustomizebuild",
"kvpairsources",
"labeldrop",
"labelmap",
"ldflags",
"leaderelection",
"ledgerwriter",
"libnss",
"limitranges",
"livez",
"loadbalancer",
"loadrestrictions",
"logfmt",
"lxnl",
"mattn",
"mccutchen",
"metav",
"mindmap",
"mktemp",
"msqbn",
"mtls",
"Multicluster",
"mutatingwebhookconfiguration",
"mutatingwebhookconfigurations",
"mvdan",
"mxcl",
"mychart",
"myhostname",
"myRegistrKeySecretName",
"mysecret",
"nameofclusterrole",
"nameserver",
"namespacedname",
"ndots",
"networkpolicies",
"nodename",
"nolint",
"oauthproxy",
"objectmap",
"objectmeta",
"omitempty",
"organizationconnect",
"orgid",
"otelconnect",
"outfile",
"overriden",
"Parentspanid",
"patchstrategicmerge",
"pcfg",
"pcjc",
"peerauthentication",
"peerauthentications",
"persistentvolumeclaim",
"persistentvolumeclaims",
"persistentvolumes",
"pflag",
"pgadmin",
"pgupgrade",
"pipefail",
"PKCE",
"platformconnect",
"pluginconfig",
"pluginrestrictions",
"podcli",
"poddisruptionbudget",
"poddisruptionbudgets",
"podinfo",
"podmonitor",
"portmapping",
"postgrescluster",
"privs",
"prometheuses",
"promhttp",
"protobuf",
"protojson",
"providerconfig",
"proxyconfig",
"proxyconfigs",
"Pulumi",
"pushgateway",
"pushsecret",
"pushsecrets",
"putenv",
"qjbp",
"quickstart",
"QVRFLS",
"readyz",
"referencegrant",
"referencegrants",
"Registr",
"replacementfield",
"replicasets",
"replicationcontrollers",
"requestauthentication",
"requestauthentications",
"resourcequotas",
"retryable",
"rogpeppe",
"rolebinding",
"rootfs",
"ropc",
"sboms",
"seccomp",
"secretargs",
"SECRETKEY",
"secretstore",
"secretstores",
"serverlb",
"serverside",
"serviceaccount",
"servicebindings",
"serviceentries",
"serviceentry",
"servicemonitor",
"sigstore",
"somevalue",
"SOMEVAR",
"sortoptions",
"spanid",
"spiffe",
"stackdriver",
"startupapicheck",
"statefulset",
"statefulsets",
"stefanprodan",
"storageclasses",
"streamwatcher",
"stretchr",
"struct",
"structpb",
"subcharts",
"subjectaccessreviews",
"svclb",
"sysfs",
"systemconnect",
"tablewriter",
"templatable",
"testscript",
"testutil",
"thanos",
"Tiltfile",
"timestamppb",
"Timoni",
"tlsclientconfig",
"tokencache",
"Tokener",
"tolerations",
"TOPLEVEL",
"Traceid",
"traefik",
"transactionhistory",
"tsdb",
"txtar",
"typemeta",
"udev",
"uibutton",
"Unmarshal",
"unmarshals",
"unshallow",
"unstage",
"untar",
"upbound",
"Upsert",
"urandom",
"usecases",
"userconnect",
"userdata",
"userservice",
"validatingwebhookconfiguration",
"validatingwebhookconfigurations",
"vaultdynamicsecret",
"vaultdynamicsecrets",
"virtualservice",
"virtualservices",
"volumeattachments",
"wasmplugin",
"wasmplugins",
"workdir",
"workloadentries",
"workloadentry",
"workloadgroup",
"workloadgroups",
"yournamespace",
"zerolog",
"zitadel",
"ztunnel"
"zitadel"
]
}

7
.envrc
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@@ -1,7 +0,0 @@
if ! use flake .#default --accept-flake-config --print-build-logs
then
echo "nix flake could not be built; update flake.nix and run direnv allow/reload" >&2
fi
watch_file nix/*.nix
watch_file flake.nix

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@@ -1,131 +0,0 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: NeedsInvestigation, Triage
assignees: ''
---
<!--
Please answer these questions before submitting your issue. Thanks!
To ask questions, see https://github.com/holos-run/holos/discussions
-->
### What version of holos are you using (`holos --version`)?
```
0.0.0
```
### Does this issue reproduce with the latest release?
<!--
Get the latest release with:
brew install holos-run/tap/holos
Or see https://holos.run/docs/v1alpha5/tutorial/setup/
-->
### What did you do?
<!--
Please provide a testscript that should pass, but does not because of the bug.
See the below example.
You can create a txtar from a directory with:
holos txtar ./path/to/dir
Refer to: https://github.com/rogpeppe/go-internal/tree/master/cmd/testscript
-->
Steps to reproduce:
```shell
testscript -v -continue <<EOF
```
```txtar
# Have: an error related to the imported Kustomize schemas.
# Want: holos show buildplans to work.
exec holos --version
exec holos init platform v1alpha5 --force
# remove the fix to trigger the bug
rm cue.mod/pkg/sigs.k8s.io/kustomize/api/types/var.cue
# want a BuildPlan shown
exec holos show buildplans
cmp stdout buildplan.yaml
# want this error to go away
! stderr 'cannot convert non-concrete value string'
-- buildplan.yaml --
kind: BuildPlan
-- platform/example.cue --
package holos
Platform: Components: example: {
name: "example"
path: "components/example"
}
-- components/example/example.cue --
package holos
import "encoding/yaml"
holos: Component.BuildPlan
Component: #Kustomize & {
KustomizeConfig: Kustomization: patches: [
{
target: kind: "CustomResourceDefinition"
patch: yaml.Marshal([{
op: "add"
path: "/metadata/annotations/example"
value: "example-value"
}])
},
]
}
```
```shell
EOF
```
### What did you expect to see?
The testscript should pass.
### What did you see instead?
The testscript fails because of the bug.
```txt
# Have: an error related to the imported Kustomize schemas.
# Want: holos show buildplans to work. (0.168s)
> exec holos --version
[stdout]
0.100.1-2-g9b10e23-dirty
> exec holos init platform v1alpha5 --force
# remove the fix to trigger the bug (0.000s)
> rm cue.mod/pkg/sigs.k8s.io/kustomize/api/types/var.cue
# want a BuildPlan shown (0.091s)
> exec holos show buildplans
[stderr]
could not run: holos.spec.artifacts.0.transformers.0.kustomize.kustomization.patches.0.target.name: cannot convert non-concrete value string at builder/v1alpha5/builder.go:218
holos.spec.artifacts.0.transformers.0.kustomize.kustomization.patches.0.target.name: cannot convert non-concrete value string:
$WORK/cue.mod/gen/sigs.k8s.io/kustomize/api/types/var_go_gen.cue:33:2
[exit status 1]
FAIL: <stdin>:8: unexpected command failure
> cmp stdout buildplan.yaml
diff stdout buildplan.yaml
--- stdout
+++ buildplan.yaml
@@ -0,0 +1,1 @@
+kind: BuildPlan
FAIL: <stdin>:9: stdout and buildplan.yaml differ
# want this error to go away (0.000s)
> ! stderr 'cannot convert non-concrete value string'
FAIL: <stdin>:11: unexpected match for `cannot convert non-concrete value string` found in stderr: cannot convert non-concrete value string
failed run
```

View File

@@ -13,7 +13,7 @@ permissions:
jobs:
test:
runs-on: ubuntu-latest
runs-on: gha-rs
steps:
- name: Checkout code
uses: actions/checkout@v4
@@ -28,16 +28,19 @@ jobs:
with:
go-version: stable
- name: Install Packages
run: sudo apt update && sudo apt -qq -y install git curl zip unzip tar bzip2 make
- name: Set up Helm
uses: azure/setup-helm@v4
with:
version: '3.17.3'
- name: Set up Kubectl
uses: azure/setup-kubectl@v4
uses: azure/setup-kubectl@v3
- name: Install holos
run: make install
- name: Install Tools
run: |
set -x
make tools
- name: Test
run: ./scripts/test

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@@ -1,143 +0,0 @@
name: Container
# Only allow actors with write permission to the repository to trigger this
# workflow.
permissions:
contents: write
on:
push:
tags:
- 'v*'
workflow_dispatch:
inputs:
git_ref:
description: 'Git ref to build (e.g., refs/tags/v1.2.3, refs/heads/main)'
required: true
type: string
jobs:
buildx:
runs-on: ubuntu-latest
permissions:
contents: read
packages: write
attestations: write
id-token: write
steps:
- name: Set tag from trigger event
id: opts
run: |
if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
echo "ref=${{ inputs.git_ref }}" >> $GITHUB_OUTPUT
else
echo "ref=${GITHUB_REF}" >> $GITHUB_OUTPUT
fi
- name: Checkout
uses: actions/checkout@v4
with:
ref: ${{ steps.opts.outputs.ref }}
- name: SHA
id: sha
run: echo "sha=$(/usr/bin/git log -1 --format='%H')" >> $GITHUB_OUTPUT
- name: Set up QEMU
uses: docker/setup-qemu-action@v3
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Fetch tags
run: git fetch --prune --unshallow --tags
- name: Set Tags
id: tags
run: |
echo "detail=$(/usr/bin/git describe --tags HEAD)" >> $GITHUB_OUTPUT
echo "suffix=$(test -n "$(git status --porcelain)" && echo '-dirty' || echo '')" >> $GITHUB_OUTPUT
echo "tag=$(/usr/bin/git describe --tags HEAD)$(test -n "$(git status --porcelain)" && echo '-dirty' || echo '')" >> $GITHUB_OUTPUT
- name: Login to ghcr.io
uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Build and push container images
id: build-and-push
uses: docker/build-push-action@v6
with:
context: .
platforms: linux/amd64,linux/arm64
push: true
tags: |
ghcr.io/holos-run/holos:${{ steps.tags.outputs.tag }}
ghcr.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}
- name: Setup Cosign to sign container images
uses: sigstore/cosign-installer@v3.7.0
- name: Sign with GitHub OIDC Token
env:
DIGEST: ${{ steps.build-and-push.outputs.digest }}
run: |
cosign sign --yes ghcr.io/holos-run/holos:${{ steps.tags.outputs.tag }}@${DIGEST}
cosign sign --yes ghcr.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}@${DIGEST}
- uses: actions/create-github-app-token@v1
id: app-token
with:
owner: ${{ github.repository_owner }}
app-id: ${{ vars.GORELEASER_APP_ID }}
private-key: ${{ secrets.GORELEASER_APP_PRIVATE_KEY }}
- name: Get GitHub App User ID
id: get-user-id
run: echo "user-id=$(gh api "/users/${{ steps.app-token.outputs.app-slug }}[bot]" --jq .id)" >> "$GITHUB_OUTPUT"
env:
GH_TOKEN: ${{ steps.app-token.outputs.token }}
- run: |
git config --global user.name '${{ steps.app-token.outputs.app-slug }}[bot]'
git config --global user.email '${{ steps.get-user-id.outputs.user-id }}+${{ steps.app-token.outputs.app-slug }}[bot]@users.noreply.github.com'
- name: Update holos-run/holos-action
env:
IMAGE: ghcr.io/holos-run/holos:v0.102.1
VERSION: ${{ steps.tags.outputs.tag }}
USER_ID: ${{ steps.get-user-id.outputs.user-id }}
TOKEN: ${{ steps.app-token.outputs.token }}
run: |
set -euo pipefail
git clone "https://github.com/holos-run/holos-action"
cd holos-action
git remote set-url origin https://${USER_ID}:${TOKEN}@github.com/holos-run/holos-action
docker pull --quiet "${IMAGE}"
docker run -v $(pwd):/app --workdir /app --rm "${IMAGE}" \
holos cue export --out yaml action.cue -t "version=${VERSION}" > action.yml
git add action.yml
git commit -m "ci: update holos to ${VERSION} - https://github.com/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}" || (echo "No changes to commit"; exit 0)
git push origin HEAD:main HEAD:v0 HEAD:v1
- name: Login to quay.io
uses: docker/login-action@v3
with:
registry: quay.io
username: ${{ secrets.QUAY_USER }}
password: ${{ secrets.QUAY_TOKEN }}
- name: Push to quay.io
env:
DIGEST: ${{ steps.build-and-push.outputs.digest }}
run: |
# docker push quay.io/holos-run/holos:${{ steps.tags.outputs.tag }}
docker pull --quiet ghcr.io/holos-run/holos:${{ steps.tags.outputs.tag }}@${DIGEST}
docker tag ghcr.io/holos-run/holos:${{ steps.tags.outputs.tag }}@${DIGEST} \
quay.io/holos-run/holos:${{ steps.tags.outputs.tag }}
docker push quay.io/holos-run/holos:${{ steps.tags.outputs.tag }}
docker pull --quiet ghcr.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}@${DIGEST}
docker tag ghcr.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}@${DIGEST} \
quay.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}
docker push quay.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}
- name: Sign quay.io image
env:
DIGEST: ${{ steps.build-and-push.outputs.digest }}
run: |
cosign sign --yes quay.io/holos-run/holos:${{ steps.tags.outputs.tag }}@${DIGEST}
cosign sign --yes quay.io/holos-run/holos:${{ steps.sha.outputs.sha }}${{ steps.tags.outputs.suffix }}@${DIGEST}
outputs:
tag: ${{ steps.tags.outputs.tag }}
detail: ${{ steps.tags.outputs.detail }}

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@@ -1,57 +0,0 @@
name: Dev Deploy
on:
push:
branches: ['dev-deploy']
jobs:
deploy:
name: Deploy
runs-on: ubuntu-latest
steps:
## Not needed on ubuntu-latest
# - name: Provide GPG and Git
# run: sudo apt update && sudo apt -qq -y install gnupg git curl zip unzip tar bzip2 make jq
## Not needed on ubuntu-latest
# - name: Provide Holos Dependencies
# run: |
# sudo mkdir -p -m 755 /etc/apt/keyrings
# curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
# sudo chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg
# echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.30/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
# sudo chmod 644 /etc/apt/sources.list.d/kubernetes.list
# sudo apt update
# sudo apt install -qq -y kubectl
# curl -fsSL -o- https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash
# Must come after git executable is provided
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
- uses: actions/setup-go@v5
with:
go-version: '1.22.x'
- uses: ko-build/setup-ko@v0.7
env:
KO_DOCKER_REPO: quay.io/holos-run/holos
- name: Setup SSH
run: |
mkdir -p ~/.ssh
echo "${{ secrets.DEPLOY_SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
chmod 600 ~/.ssh/id_ed25519
ssh-keyscan github.com >> ~/.ssh/known_hosts
git config --global user.name "github-actions[bot]"
git config --global user.email "github-actions[bot]@users.noreply.github.com"
- name: make dev-deploy
env:
auth_user: holos-run+pusher
auth_token: ${{ secrets.QUAY_TOKEN }}
run: |
echo "${auth_token}" | ko login quay.io --username "${auth_user}" --password-stdin
make dev-deploy

View File

@@ -1,30 +0,0 @@
name: golangci-lint
on:
push:
branches:
- main
- test
pull_request:
types: [opened, synchronize]
permissions:
# Required: allow read access to the content for analysis.
contents: read
# Optional: allow read access to pull request. Use with `only-new-issues` option.
pull-requests: read
# Optional: allow write access to checks to allow the action to annotate code in the PR.
checks: write
jobs:
golangci:
name: lint
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: actions/setup-go@v5
with:
go-version: stable
- name: golangci-lint
uses: golangci/golangci-lint-action@v7
with:
version: v2.1.6

45
.github/workflows/lint.yaml vendored Normal file
View File

@@ -0,0 +1,45 @@
---
# https://github.com/golangci/golangci-lint-action?tab=readme-ov-file#how-to-use
name: Lint
"on":
push:
branches:
- main
- test
pull_request:
types: [opened, synchronize]
permissions:
contents: read
jobs:
golangci:
name: lint
runs-on: gha-rs
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Set up Node
uses: actions/setup-node@v4
with:
node-version: 20
- name: Set up Go
uses: actions/setup-go@v5
with:
go-version: stable
- name: Install Packages
run: sudo apt update && sudo apt -qq -y install git curl zip unzip tar bzip2 make
- name: Install Tools
run: |
set -x
make tools
- name: golangci-lint
uses: golangci/golangci-lint-action@v4
with:
version: latest
skip-pkg-cache: true

36
.github/workflows/publish.yaml vendored Normal file
View File

@@ -0,0 +1,36 @@
name: Publish
on:
push:
branches: ['main', 'publish']
jobs:
publish:
name: Publish
runs-on: gha-rs
steps:
- name: Provide GPG and Git
run: sudo apt update && sudo apt -qq -y install gnupg git curl zip unzip tar bzip2 make
# Must come after git executable is provided
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
- uses: actions/setup-go@v5
with:
go-version: '1.22.x'
- uses: ko-build/setup-ko@v0.7
env:
KO_DOCKER_REPO: quay.io/holos-run/holos
- name: Publish
env:
KO_DOCKER_REPO: quay.io/holos-run/holos
auth_token: ${{ secrets.QUAY_TOKEN }}
auth_user: ${{ secrets.QUAY_USER }}
run: |
echo "${auth_token}" | ko login "https://${KO_DOCKER_REPO}" --username "${auth_user}" --password-stdin
ko build

View File

@@ -12,12 +12,11 @@ permissions:
jobs:
goreleaser:
runs-on: ubuntu-latest
runs-on: gha-rs
steps:
## Not needed on ubuntu-latest
# Must come before Checkout, otherwise goreleaser fails
# - name: Provide GPG and Git
# run: sudo apt update && sudo apt -qq -y install gnupg git curl zip unzip tar bzip2 make
- name: Provide GPG and Git
run: sudo apt update && sudo apt -qq -y install gnupg git curl zip unzip tar bzip2 make
# Must come after git executable is provided
- name: Checkout
@@ -35,9 +34,6 @@ jobs:
with:
go-version: stable
- name: Setup Syft
uses: anchore/sbom-action/download-syft@1ca97d9028b51809cf6d3c934c3e160716e1b605 # v0.17.5
# Necessary to run these outside of goreleaser, otherwise
# /home/runner/_work/holos/holos/internal/frontend/node_modules/.bin/protoc-gen-connect-query is not in PATH
- name: Install Tools
@@ -57,19 +53,11 @@ jobs:
- name: Git diff
run: git diff
- uses: actions/create-github-app-token@v1
id: app-token
with:
owner: ${{ github.repository_owner }}
app-id: ${{ vars.GORELEASER_APP_ID }}
private-key: ${{ secrets.GORELEASER_APP_PRIVATE_KEY }}
- name: Run GoReleaser
uses: goreleaser/goreleaser-action@v5
with:
distribution: goreleaser
version: '~> v2'
version: latest
args: release --clean
env:
HOMEBREW_TAP_GITHUB_TOKEN: ${{ steps.app-token.outputs.token }}
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

View File

@@ -1,17 +0,0 @@
---
name: Spelling
"on":
push:
branches:
- main
- test
pull_request:
types: [opened, synchronize]
permissions:
contents: read
jobs:
cspell:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- run: ./hack/cspell

9
.gitignore vendored
View File

@@ -1,4 +1,5 @@
/bin/
vendor/
.idea/
coverage.out
/dist/
@@ -12,11 +13,3 @@ tmp/
/holos-k3d/
/holos-infra/
node_modules/
.tmp/
# nix
/.direnv/
result
# claude
/.claude/settings.local.json

View File

@@ -1,20 +1,2 @@
version: "2"
linters:
exclusions:
generated: lax
presets:
- comments
- common-false-positives
- legacy
- std-error-handling
paths:
- third_party$
- builtin$
- examples$
formatters:
exclusions:
generated: lax
paths:
- third_party$
- builtin$
- examples$
run:
timeout: 5m

View File

@@ -6,7 +6,7 @@
# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
# vim: set ts=2 sw=2 tw=0 fo=cnqoj
version: 2
version: 1
before:
hooks:
@@ -50,39 +50,3 @@ changelog:
exclude:
- "^docs:"
- "^test:"
source:
enabled: true
name_template: '{{ .ProjectName }}_{{ .Version }}_source_code'
sboms:
- id: source
artifacts: source
documents:
- "{{ .ProjectName }}_{{ .Version }}_sbom.spdx.json"
brews:
- name: holos
repository:
owner: holos-run
name: homebrew-tap
branch: main
token: "{{ .Env.HOMEBREW_TAP_GITHUB_TOKEN }}"
directory: Formula
homepage: "https://holos.run"
description: "Holos CLI"
dependencies:
- name: helm
type: optional
- name: kubectl
type: optional
install: |
bin.install "holos"
bash_output = Utils.safe_popen_read(bin/"holos", "completion", "bash")
(bash_completion/"holos").write bash_output
zsh_output = Utils.safe_popen_read(bin/"holos", "completion", "zsh")
(zsh_completion/"_holos").write zsh_output
fish_output = Utils.safe_popen_read(bin/"holos", "completion", "fish")
(fish_completion/"holos.fish").write fish_output
test: |
system "#{bin}/holos --version"

13
.ko.yaml Normal file
View File

@@ -0,0 +1,13 @@
# Refer to https://ko.build/configuration/#overriding-go-build-settings
builds:
- id: holos
dir: .
main: ./cmd/holos
env:
- GOPRIVATE=github.com/holos-run/\*
ldflags:
- -s
- -w
- -X
# Makefile provides GIT_DETAIL and GIT_SUFFIX.
- github.com/holos-run/holos/version.GitDescribe={{.Env.GIT_DETAIL}}{{.Env.GIT_SUFFIX}}

115
CLAUDE.md
View File

@@ -1,115 +0,0 @@
# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Project Overview
Holos is a configuration management tool for Kubernetes that implements the rendered manifests pattern using CUE. It unifies Helm charts, Kustomize bases, and raw Kubernetes manifests into a single, declarative pipeline.
### Core Flow
```
Platform → Components → BuildPlan → Generators → Transformers → Validators → Manifests
```
## Key Commands
```bash
# Development
make build # Build the binary
make install # Install binary (REQUIRED before testing holos commands)
make test # Run all tests
make fmt # Format Go code
make lint # Run linters
make coverage # Generate coverage report
# Documentation
make update-docs # Update generated docs
make website # Build the documentation website
# Usage (run 'make install' first to test code changes)
holos render platform # Render entire platform
holos render component # Render single component
holos show buildplans # Show build plans
holos init platform # Initialize new platform
```
## Architecture
### Directory Structure
- `/api/` - API definitions (v1alpha5 stable, v1alpha6 in development)
- `/cmd/` - CLI entry point
- `/internal/cli/` - Command implementations
- `/internal/component/` - Component handling logic
- `/internal/platform/` - Platform handling logic
- `/internal/generate/` - Code generation
### Key Files
- `/internal/cli/render/render.go` - Core render logic
- `/internal/component/component.go` - Component processing
- `/api/core/v1alpha*/types.go` - API type definitions
### Component Types
1. **Helm** - Wraps Helm charts
2. **Kustomize** - Wraps Kustomize bases
3. **Kubernetes** - Raw Kubernetes manifests
## CUE Patterns
Components are defined in CUE:
```cue
package holos
holos: Component.BuildPlan
Component: #Helm & {
Name: "example"
Chart: {
version: "1.0.0"
repository: {
name: "example"
url: "https://charts.example.com"
}
}
}
```
## Testing
- Unit tests: `*_test.go` files colocated with source
- Integration tests: `/cmd/holos/tests/`
- Example platforms: `/internal/testutil/fixtures/`
- Run single test: `go test -run TestName ./path/to/package`
## Development Patterns
1. Error handling: Prefer `errors.Format()` from `/internal/errors/` over `fmt.Errorf()`
2. Logging: Use structured `slog`, get logger with `logger.FromContext(ctx)`
3. CLI commands: Follow Cobra patterns in `/internal/cli/`
4. CUE formatting: Always run `cue fmt` on CUE files
5. Go formatting: Always run `go fmt` on go files
6. Develop against v1alpha6 packages.
7. Commits: Use the package name as the first word in the commit, lower case. Commit without asking permission. Always run `make lint` and `make test` before committing.
## Version Management
- Version files: `/version/embedded/{major,minor,patch}`
- Bump version: `make bump`
- API versions: v1alpha5 (stable), v1alpha6 (development)
## Key Concepts
- **Platform**: Top-level configuration containing all components
- **Component**: Unit of configuration (DAG of Tasks producing deployment configs for one component)
- **TaskSet**: DAG of Tasks (Similar to how make tasks behave)
- **BuildPlan**: Instructions for building a component. Deprecated in v1alpha6, use TaskSet instead.
- **Generator**: Creates manifests (Helm, Kustomize, etc.) author schema only in v1alpha6
- **Transformer**: Modifies generated manifests, author schema only in v1alpha6
- **Validator**: Validates final manifests, author schema only in v1alpha6
## Resources
- Tutorials: `/doc/md/tutorial/`
- Platform templates: `/internal/generate/platforms/`
- Test fixtures: `/internal/testutil/fixtures/`
- Core schemas: `/api/core/` (Abstraction over low level data pipeline tasks)
- Author schemas: `/api/author/` (User facing abstractions over core Schemas)

View File

@@ -1,38 +1,8 @@
FROM registry.k8s.io/kubectl:v1.33.4 AS kubectl
# https://github.com/GoogleContainerTools/distroless
FROM golang:1.24 AS build
WORKDIR /go/src/app
COPY . .
RUN CGO_ENABLED=0 make install
RUN CGO_ENABLED=0 go install sigs.k8s.io/kustomize/kustomize/v5
# Install helm to /usr/local/bin/helm
# https://helm.sh/docs/intro/install/#from-script
# https://holos.run/docs/v1alpha5/tutorial/setup/#dependencies
RUN curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 \
&& chmod 700 get_helm.sh \
&& DESIRED_VERSION=v3.16.2 ./get_helm.sh \
&& rm -f get_helm.sh
COPY --from=kubectl /bin/kubectl /usr/local/bin/
# Use debian slim instead of distroless to get package management.
FROM public.ecr.aws/docker/library/debian:13-slim AS final
COPY --from=build \
/go/bin/holos \
/go/bin/kustomize \
/usr/local/bin/kubectl \
/usr/local/bin/helm \
/bin/
# Extra packages
# git - https://github.com/holos-run/holos/issues/440
RUN apt update && \
apt install -y --no-install-recommends git ca-certificates && \
apt clean && \
rm -rf /var/lib/apt/lists/*
# Usage: docker run -v $(pwd):/app --workdir /app --rm -it quay.io/holos-run/holos holos render platform
CMD ["/bin/holos"]
FROM quay.io/holos-run/debian:bullseye AS final
USER root
WORKDIR /app
ADD bin bin
RUN chown -R app: /app
# Kubernetes requires the user to be numeric
USER 8192
ENTRYPOINT bin/holos server

View File

@@ -32,20 +32,17 @@ bump: bumppatch
.PHONY: bumppatch
bumppatch: ## Bump the patch version.
scripts/bump patch
HOLOS_UPDATE_SCRIPTS=1 scripts/test
.PHONY: bumpminor
bumpminor: ## Bump the minor version.
scripts/bump minor
scripts/bump patch 0
HOLOS_UPDATE_SCRIPTS=1 scripts/test
.PHONY: bumpmajor
bumpmajor: ## Bump the major version.
scripts/bump major
scripts/bump minor 0
scripts/bump patch 0
HOLOS_UPDATE_SCRIPTS=1 scripts/test
.PHONY: show-version
show-version: ## Print the full version.
@@ -61,8 +58,9 @@ tidy: ## Tidy go module.
.PHONY: fmt
fmt: ## Format code.
cd docs/examples && cue fmt ./...
cd internal/generate/platforms && cue fmt ./...
go fmt ./...
cue fmt ./...
.PHONY: vet
vet: ## Vet Go code.
@@ -78,11 +76,10 @@ build: ## Build holos executable.
@echo "GOPATH=${GOPATH}"
go build -trimpath -o bin/$(BIN_NAME) -ldflags $(LD_FLAGS) $(REPO_PATH)/cmd/$(BIN_NAME)
.PHONY: debug
debug: ## Build debug executable.
@echo "building ${BIN_NAME}-debug ${VERSION}"
linux: ## Build holos executable for tilt.
@echo "building ${BIN_NAME}.linux ${VERSION}"
@echo "GOPATH=${GOPATH}"
go build -o bin/$(BIN_NAME)-debug $(REPO_PATH)/cmd/$(BIN_NAME)
GOOS=linux go build -trimpath -o bin/$(BIN_NAME).linux -ldflags $(LD_FLAGS) $(REPO_PATH)/cmd/$(BIN_NAME)
.PHONY: install
install: build ## Install holos to GOPATH/bin
@@ -96,12 +93,11 @@ clean: ## Clean executables.
test: ## Run tests.
scripts/test
.PHONY: golangci-lint
golangci-lint:
golangci-lint run
.PHONY: lint
lint: vet golangci-lint ## Run linters.
lint: ## Run linters.
buf lint
cd internal/frontend/holos && ng lint
golangci-lint run
./hack/cspell
.PHONY: coverage
@@ -113,31 +109,41 @@ snapshot: ## Go release snapshot
goreleaser release --snapshot --clean
.PHONY: tools
tools: go-deps website-deps ## install tool dependencies
tools: go-deps frontend-deps website-deps ## install tool dependencies
.PHONY: go-deps
go-deps: ## tool versions pinned in tools.go
go install cuelang.org/go/cmd/cue
go install github.com/bufbuild/buf/cmd/buf
go install github.com/fullstorydev/grpcurl/cmd/grpcurl
go install google.golang.org/protobuf/cmd/protoc-gen-go
go install connectrpc.com/connect/cmd/protoc-gen-connect-go
go install honnef.co/go/tools/cmd/staticcheck
go install golang.org/x/tools/cmd/godoc
go install github.com/princjef/gomarkdoc/cmd/gomarkdoc
go install github.com/google/ko
# curl https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | bash
.PHONY: frontend-deps
frontend-deps: ## Install Angular deps for go generate
cd internal/frontend/holos && npm install
.PHONY: website-deps
website-deps: ## Install Docusaurus deps for go generate
cd doc/website && npm install
.PHONY: image # refer to .ko.yaml as well
image: ## Container image build
KO_DOCKER_REPO=$(DOCKER_REPO) GIT_DETAIL=$(GIT_DETAIL) GIT_SUFFIX=$(GIT_SUFFIX) ko build --platform=all --bare ./cmd/holos --tags $(GIT_DETAIL)$(GIT_SUFFIX)
.PHONY: deploy
deploy: image ## DEPLOY TO PROD
GIT_DETAIL=$(GIT_DETAIL) GIT_SUFFIX=$(GIT_SUFFIX) bash ./hack/deploy
.PHONY: website
website: ## Build website
./hack/build-website
.PHONY: unity
unity: ## https://cuelabs.dev/unity/
./scripts/unity
.PHONY: update-docs
update-docs: ## Update doc examples
HOLOS_UPDATE_SCRIPTS=1 go test -v ./doc/md/...
HOLOS_UPDATE_SCRIPTS=1 go test -v ./doc/website/versioned_docs/...
.PHONY: help
help: ## Display this help menu.
@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf " \033[36m%-20s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)

131
README.md
View File

@@ -1,130 +1,3 @@
# Holos
# k3d Platform
<img width="50%"
align="right"
style="display: block; margin: 40px auto;"
src="https://openinfrastructure.co/blog/2016/02/27/logo/logorectangle.png">
[Holos] is a configuration management tool for Kubernetes implementing the
[rendered manifests pattern]. It handles configurations ranging from single
resources to multi-cluster platforms across regions.
Key components:
- Platform schemas defining component integration
- Building blocks unifying Helm, Kustomize and Kubernetes configs with CUE
- BuildPlan pipeline for generating, transforming and validating manifests
```mermaid
---
title: Rendering Overview
---
graph LR
Platform[<a href="https://holos.run/docs/v1alpha5/api/author/#Platform">Platform</a>]
Component[<a href="https://holos.run/docs/v1alpha5/api/author/#ComponentConfig">Components</a>]
Helm[<a href="https://holos.run/docs/v1alpha5/api/author/#Helm">Helm</a>]
Kustomize[<a href="https://holos.run/docs/v1alpha5/api/author/#Kustomize">Kustomize</a>]
Kubernetes[<a href="https://holos.run/docs/v1alpha5/api/author/#Kubernetes">Kubernetes</a>]
BuildPlan[<a href="https://holos.run/docs/v1alpha5/api/core/#BuildPlan">BuildPlan</a>]
ResourcesArtifact[<a href="https://holos.run/docs/v1alpha5/api/core/#Artifact">Resources<br/>Artifact</a>]
GitOpsArtifact[<a href="https://holos.run/docs/v1alpha5/api/core/#Artifact">GitOps<br/>Artifact</a>]
Generators[<a href="https://holos.run/docs/v1alpha5/api/core/#Generator">Generators</a>]
Transformers[<a href="https://holos.run/docs/v1alpha5/api/core/#Transformer">Transformers</a>]
Validators[<a href="https://holos.run/docs/v1alpha5/api/core/#Validator">Validators</a>]
Files[Manifest<br/>Files]
Platform --> Component
Component --> Helm --> BuildPlan
Component --> Kubernetes --> BuildPlan
Component --> Kustomize --> BuildPlan
BuildPlan --> ResourcesArtifact --> Generators
BuildPlan --> GitOpsArtifact --> Generators
Generators --> Transformers --> Validators --> Files
```
## Setup
```shell
brew install holos-run/tap/holos
```
Refer to [setup] for other installation methods and dependencies.
## Example
See our [tutorial] for a complete hello world example.
```cue showLineNumbers
package holos
holos: Component.BuildPlan
Component: #Helm & {
Name: "podinfo"
Chart: {
version: "6.6.2"
repository: {
name: "podinfo"
url: "https://stefanprodan.github.io/podinfo"
}
}
Values: ui: {
message: string | *"Hello World" @tag(message, type=string)
}
}
```
## Organizational Role
Platform engineers use Holos to generate Kubernetes manifests, both locally and
in CI pipelines. The manifests are committed to version control and deployed via
GitOps tools like ArgoCD or Flux.
Holos integrates seamlessly with existing Helm charts, Kustomize bases, and
other version-controlled configurations.
## Advantages of Holos
### Safe
Holos leverages [CUE] for strong typing and validation of configuration data,
ensuring consistent output from Helm and other tools.
### Consistent
A unified pipeline processes all configurations - whether from CUE, Helm, or
Kustomize - through the same well-defined stages.
### Flexible
Composable building blocks for generation, transformation, validation and
integration let teams assemble workflows that match their needs.
The core is intentionally unopinionated about platform configuration patterns.
Common needs like environments and clusters are provided as customizable
[topics] recipes rather than enforced structures.
## Getting Help
Get support through our [Discord] channel or [GitHub discussions]. Configuration
challenges arise at all experience levels - we welcome your questions and are
here to help.
## License
Holos is licensed under Apache 2.0 as found in the [LICENSE file](LICENSE).
[Holos]: https://holos.run/docs/overview/
[rendered manifests pattern]: https://akuity.io/blog/the-rendered-manifests-pattern
[CUE]: https://cuelang.org/
[Discord]: https://discord.gg/JgDVbNpye7
[GitHub discussions]: https://github.com/holos-run/holos/discussions
[Why CUE for Configuration]: https://holos.run/blog/why-cue-for-configuration/
[tutorial]: https://holos.run/docs/overview/
[setup]: https://holos.run/docs/setup/
[topics]: https://holos.run/docs/topics/
Refer to https://holos.run/docs/tutorial/local/k3d

110
Tiltfile Normal file
View File

@@ -0,0 +1,110 @@
# -*- mode: Python -*-
# This Tiltfile manages a Go project with live reload in Kubernetes
listen_port = 3000
metrics_port = 9090
# Use our wrapper to set the kube namespace
if os.getenv('TILT_WRAPPER') != '1':
fail("could not run, ./hack/tilt/bin/tilt was not used to start tilt")
# Resource ids
holos_backend = 'Holos Server'
compile_id = 'Go Build'
# Default Registry.
# See: https://github.com/tilt-dev/tilt.build/blob/master/docs/choosing_clusters.md#manual-configuration
# Note, Tilt will append the image name to the registry uri path
# default_registry('{account}.dkr.ecr.{region}.amazonaws.com/holos-run/holos'.format(account=aws_account, region=aws_region))
# Set a name prefix specific to the user. Multiple developers share the tilt-holos namespace.
developer = os.getenv('USER')
holos_server = 'holos'
# We always develop against the k3d-workload cluster
os.putenv('KUBECONFIG', os.path.abspath('./hack/tilt/kubeconfig'))
# Extensions are open-source, pre-packaged functions that extend Tilt
#
# More info: https://github.com/tilt-dev/tilt-extensions
# More info: https://docs.tilt.dev/extensions.html
load('ext://restart_process', 'docker_build_with_restart')
load('ext://k8s_attach', 'k8s_attach')
load('ext://git_resource', 'git_checkout')
load('ext://uibutton', 'cmd_button')
# Paths edited by the developer Tilt watches to trigger compilation.
# Generated files should be excluded to avoid an infinite build loop.
developer_paths = [
'./cmd',
'./internal/server',
'./internal/ent/schema',
'./frontend/package-lock.json',
'./frontend/src',
'./go.mod',
'./pkg',
'./service/holos',
]
# Builds the holos executable GOOS=linux
local_resource(compile_id, 'make linux', deps=developer_paths)
# Build Docker image
# Tilt will automatically associate image builds with the resource(s)
# that reference them (e.g. via Kubernetes or Docker Compose YAML).
#
# More info: https://docs.tilt.dev/api.html#api.docker_build
#
docker_build_with_restart(
'k3d-registry.holos.localhost:5100/holos',
context='.',
entrypoint=[
'/app/bin/holos.linux',
'server',
'--log-format=text',
'--oidc-issuer=https://login.holos.run',
'--oidc-audience=275804490387516853@holos_quickstart', # auth proxy
'--oidc-audience=270319630705329162@holos_platform', # holos cli
],
dockerfile='./Dockerfile',
only=['./bin'],
# (Recommended) Updating a running container in-place
# https://docs.tilt.dev/live_update_reference.html
live_update=[
# Sync files from host to container
sync('./bin/', '/app/bin/'),
],
)
# Troubleshooting
def resource_name(id):
print('resource: {}'.format(id))
return id.name
workload_to_resource_function(resource_name)
# Customize a Kubernetes resource
# By default, Kubernetes resource names are automatically assigned
# based on objects in the YAML manifests, e.g. Deployment name.
#
# Tilt strives for sane defaults, so calling k8s_resource is
# optional, and you only need to pass the arguments you want to
# override.
#
# More info: https://docs.tilt.dev/api.html#api.k8s_resource
#
k8s_yaml(blob(str(read_file('./hack/tilt/k8s/dev-holos-app/deployment.yaml'))))
# Backend server process
k8s_resource(
workload=holos_server,
new_name=holos_backend,
objects=[],
resource_deps=[compile_id],
links=[
link('https://app.holos.localhost/ui/'.format(developer), "Holos Web UI")
],
)
# Database
print("✨ Tiltfile evaluated")

View File

@@ -1,155 +0,0 @@
// Package author contains a standard set of schemas for component authors to
// generate common [core] BuildPlans.
//
// Holos values stability, flexibility, and composition. This package
// intentionally defines only the minimal necessary set of structures.
// Component authors are encouraged to define their own structures building on
// our example [topics].
//
// The Holos Maintainers may add definitions to this package if the community
// identifies nearly all users must define the exact same structure. Otherwise,
// definitions should be added as a customizable example in [topics].
//
// For example, structures representing a cluster and environment almost always
// need to be defined. Their definition varies from one organization to the
// next. Therefore, customizable definitions for a cluster and environment are
// best maintained in [topics], not standardized in this package.
//
// [core]: https://holos.run/docs/api/core/
// [topics]: https://holos.run/docs/topics/
package author
import core "github.com/holos-run/holos/api/core/v1alpha5"
//go:generate ../../../hack/gendoc
// Platform assembles a core Platform in the Resource field for the holos render
// platform command. Use the Components field to register components with the
// platform.
type Platform struct {
Name string
Components map[NameLabel]core.Component
Resource core.Platform
}
// ComponentConfig represents the configuration common to all kinds of
// components for use with the holos render component command. All component
// kinds may be transformed with [kustomize] configured with the
// [KustomizeConfig] field.
//
// - [Helm] charts.
// - [Kubernetes] resources generated from CUE.
// - [Kustomize] bases.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type ComponentConfig struct {
// Name represents the BuildPlan metadata.name field. Used to construct the
// fully rendered manifest file path.
Name string
// Labels represent the BuildPlan metadata.labels field.
Labels map[string]string
// Annotations represent the BuildPlan metadata.annotations field.
Annotations map[string]string
// Path represents the path to the component producing the BuildPlan.
Path string
// Parameters are useful to reuse a component with various parameters.
// Injected as CUE @tag variables. Parameters with a "holos_" prefix are
// reserved for use by the Holos Authors.
Parameters map[string]string
// OutputBaseDir represents the output base directory used when assembling
// artifacts. Useful to organize components by clusters or other parameters.
// For example, holos writes resource manifests to
// {WriteTo}/{OutputBaseDir}/components/{Name}/{Name}.gen.yaml
OutputBaseDir string `cue:"string | *\"\""`
// Resources represents kubernetes resources mixed into the rendered manifest.
Resources core.Resources
// KustomizeConfig represents the kustomize configuration.
KustomizeConfig KustomizeConfig
// Validators represent checks that must pass for output to be written.
Validators map[NameLabel]core.Validator
// Artifacts represents additional artifacts to mix in. Useful for adding
// GitOps resources. Each Artifact is unified without modification into the
// BuildPlan.
Artifacts map[NameLabel]core.Artifact
}
// Helm assembles a BuildPlan rendering a helm chart. Useful to mix in
// additional resources from CUE and transform the helm output with kustomize.
type Helm struct {
ComponentConfig `json:",inline"`
// Chart represents a Helm chart.
Chart core.Chart
// Values represents data to marshal into a values.yaml for helm.
Values core.Values
// ValueFiles represents value files for migration from helm value
// hierarchies. Use Values instead.
ValueFiles []core.ValueFile `json:",omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `cue:"true | *false"`
// Namespace sets the helm chart namespace flag if provided.
Namespace string `json:",omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:",omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:",omitempty"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// Kubernetes assembles a BuildPlan containing inline resources exported from
// CUE.
type Kubernetes struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// Kustomize assembles a BuildPlan rendering manifests from a [kustomize]
// kustomization.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type Kustomize struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// KustomizeConfig represents the configuration for [kustomize] post processing.
// Use the Files field to mix in plain manifest files located in the component
// directory. Use the Resources field to mix in manifests from network urls.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type KustomizeConfig struct {
// Kustomization represents the kustomization used to transform resources.
// Note the resources field is internally managed from the Files and Resources fields.
Kustomization map[string]any `json:",omitempty"`
// Files represents files to copy from the component directory for kustomization.
Files map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// Resources represents additional entries to included in the resources list.
Resources map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// CommonLabels represents common labels added without including selectors.
CommonLabels map[string]string
}
// NameLabel represents the common use case of converting a struct to a list
// where the name field of each value unifies with the field name of the outer
// struct.
//
// For example:
//
// S: [NameLabel=string]: name: NameLabel
// S: jeff: _
// S: gary: _
// S: nate: _
// L: [for x in S {x}]
// // L is [{name: "jeff"}, {name: "gary"}, {name: "nate"}]
type NameLabel string

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@@ -1,5 +0,0 @@
---
title: Author Schemas
description: Standardized schemas for component authors.
sidebar_position: 200
---

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@@ -1,155 +0,0 @@
// Package author contains a standard set of schemas for component authors to
// generate common [core] BuildPlans.
//
// Holos values stability, flexibility, and composition. This package
// intentionally defines only the minimal necessary set of structures.
// Component authors are encouraged to define their own structures building on
// our example [topics].
//
// The Holos Maintainers may add definitions to this package if the community
// identifies nearly all users must define the exact same structure. Otherwise,
// definitions should be added as a customizable example in [topics].
//
// For example, structures representing a cluster and environment almost always
// need to be defined. Their definition varies from one organization to the
// next. Therefore, customizable definitions for a cluster and environment are
// best maintained in [topics], not standardized in this package.
//
// [core]: https://holos.run/docs/api/core/
// [topics]: https://holos.run/docs/topics/
package author
import core "github.com/holos-run/holos/api/core/v1alpha6"
//go:generate ../../../hack/gendoc
// Platform assembles a core Platform in the Resource field for the holos render
// platform command. Use the Components field to register components with the
// platform.
type Platform struct {
Name string `json:"name" yaml:"name" cue:"string | *\"default\""`
Components map[NameLabel]core.Component `json:"components" yaml:"components"`
Resource core.Platform `json:"resource" yaml:"resource"`
}
// ComponentConfig represents the configuration common to all kinds of
// components for use with the holos render component command. All component
// kinds may be transformed with [kustomize] configured with the
// [KustomizeConfig] field.
//
// - [Helm] charts.
// - [Kubernetes] resources generated from CUE.
// - [Kustomize] bases.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type ComponentConfig struct {
// Name represents the BuildPlan metadata.name field. Used to construct the
// fully rendered manifest file path.
Name string
// Labels represent the BuildPlan metadata.labels field.
Labels map[string]string
// Annotations represent the BuildPlan metadata.annotations field.
Annotations map[string]string
// Path represents the path to the component producing the BuildPlan.
Path string
// Parameters are useful to reuse a component with various parameters.
// Injected as CUE @tag variables. Parameters with a "holos_" prefix are
// reserved for use by the Holos Authors.
Parameters map[string]string
// OutputBaseDir represents the output base directory used when assembling
// artifacts. Useful to organize components by clusters or other parameters.
// For example, holos writes resource manifests to
// {WriteTo}/{OutputBaseDir}/components/{Name}/{Name}.gen.yaml
OutputBaseDir string `cue:"string | *\"\""`
// Resources represents kubernetes resources mixed into the rendered manifest.
Resources core.Resources
// KustomizeConfig represents the kustomize configuration.
KustomizeConfig KustomizeConfig
// Validators represent checks that must pass for output to be written.
Validators map[NameLabel]core.Validator
// Artifacts represents additional artifacts to mix in. Useful for adding
// GitOps resources. Each Artifact is unified without modification into the
// BuildPlan.
Artifacts map[NameLabel]core.Artifact
}
// Helm assembles a BuildPlan rendering a helm chart. Useful to mix in
// additional resources from CUE and transform the helm output with kustomize.
type Helm struct {
ComponentConfig `json:",inline"`
// Chart represents a Helm chart.
Chart core.Chart
// Values represents data to marshal into a values.yaml for helm.
Values core.Values
// ValueFiles represents value files for migration from helm value
// hierarchies. Use Values instead.
ValueFiles []core.ValueFile `json:",omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `cue:"true | *false"`
// Namespace sets the helm chart namespace flag if provided.
Namespace string `json:",omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:",omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:",omitempty"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// Kubernetes assembles a BuildPlan containing inline resources exported from
// CUE.
type Kubernetes struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// Kustomize assembles a BuildPlan rendering manifests from a [kustomize]
// kustomization.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type Kustomize struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
// KustomizeConfig represents the configuration for [kustomize] post processing.
// Use the Files field to mix in plain manifest files located in the component
// directory. Use the Resources field to mix in manifests from network urls.
//
// [kustomize]: https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/
type KustomizeConfig struct {
// Kustomization represents the kustomization used to transform resources.
// Note the resources field is internally managed from the Files and Resources fields.
Kustomization map[string]any `json:",omitempty"`
// Files represents files to copy from the component directory for kustomization.
Files map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// Resources represents additional entries to included in the resources list.
Resources map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// CommonLabels represents common labels added without including selectors.
CommonLabels map[string]string
}
// NameLabel represents the common use case of converting a struct to a list
// where the name field of each value unifies with the field name of the outer
// struct.
//
// For example:
//
// S: [NameLabel=string]: name: NameLabel
// S: jeff: _
// S: gary: _
// S: nate: _
// L: [for x in S {x}]
// // L is [{name: "jeff"}, {name: "gary"}, {name: "nate"}]
type NameLabel string

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@@ -1,5 +0,0 @@
---
title: Author Schemas
description: Standardized schemas for component authors.
sidebar_position: 200
---

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@@ -0,0 +1,44 @@
package v1alpha2
import "google.golang.org/protobuf/types/known/structpb"
// Label is an arbitrary unique identifier internal to holos itself. The holos
// cli is expected to never write a Label value to rendered output files,
// therefore use a [Label] then the identifier must be unique and internal.
// Defined as a type for clarity and type checking.
//
// A Label is useful to convert a CUE struct to a list, for example producing a list of [APIObject] resources from an [APIObjectMap]. A CUE struct using
// Label keys is guaranteed to not lose data when rendering output because a
// Label is expected to never be written to the final output.
type Label string
// Kind is a kubernetes api object kind. Defined as a type for clarity and type checking.
type Kind string
// APIObject represents the most basic generic form of a single kubernetes api
// object. Represented as a JSON object internally for compatibility between
// tools, for example loading from CUE.
type APIObject structpb.Struct
// APIObjectMap represents the marshalled yaml representation of kubernetes api
// objects. Do not produce an APIObjectMap directly, instead use [APIObjects]
// to produce the marshalled yaml representation from CUE data, then provide the
// result to [HolosComponent].
type APIObjectMap map[Kind]map[Label]string
// APIObjects represents Kubernetes API objects defined directly from CUE code.
// Useful to mix in resources to any kind of [HolosComponent], for example
// adding an ExternalSecret resource to a [HelmChart].
//
// [Kind] must be the resource kind, e.g. Deployment or Service.
//
// [Label] is an arbitrary internal identifier to uniquely identify the resource
// within the context of a `holos` command. Holos will never write the
// intermediate label to rendered output.
//
// Refer to [HolosComponent] which accepts an [APIObjectMap] field provided by
// [APIObjects].
type APIObjects struct {
APIObjects map[Kind]map[Label]APIObject `json:"apiObjects"`
APIObjectMap APIObjectMap `json:"apiObjectMap"`
}

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@@ -0,0 +1,96 @@
package v1alpha2
// FilePath represents a file path.
type FilePath string
// FileContent represents file contents.
type FileContent string
// FileContentMap represents a mapping of file paths to file contents. Paths
// are relative to the `holos` output "deploy" directory, and may contain
// sub-directories.
type FileContentMap map[FilePath]FileContent
// BuildPlan represents a build plan for the holos cli to execute. The purpose
// of a BuildPlan is to define one or more [HolosComponent] kinds. For example a
// [HelmChart], [KustomizeBuild], or [KubernetesObjects].
//
// A BuildPlan usually has an additional empty [KubernetesObjects] for the
// purpose of using the [HolosComponent] DeployFiles field to deploy an ArgoCD
// or Flux gitops resource for the holos component.
type BuildPlan struct {
Kind string `json:"kind" cue:"\"BuildPlan\""`
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
Spec BuildPlanSpec `json:"spec"`
}
// BuildPlanSpec represents the specification of the build plan.
type BuildPlanSpec struct {
// Disabled causes the holos cli to take no action over the [BuildPlan].
Disabled bool `json:"disabled,omitempty"`
// Components represents multiple [HolosComponent] kinds to manage.
Components BuildPlanComponents `json:"components,omitempty"`
}
type BuildPlanComponents struct {
Resources map[Label]KubernetesObjects `json:"resources,omitempty"`
KubernetesObjectsList []KubernetesObjects `json:"kubernetesObjectsList,omitempty"`
HelmChartList []HelmChart `json:"helmChartList,omitempty"`
KustomizeBuildList []KustomizeBuild `json:"kustomizeBuildList,omitempty"`
}
// HolosComponent defines the fields common to all holos component kinds. Every
// holos component kind should embed HolosComponent.
type HolosComponent struct {
// Kind is a string value representing the resource this object represents.
Kind string `json:"kind"`
// APIVersion represents the versioned schema of this representation of an object.
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
// Metadata represents data about the holos component such as the Name.
Metadata Metadata `json:"metadata"`
// APIObjectMap holds the marshalled representation of api objects. Useful to
// mix in resources to each HolosComponent type, for example adding an
// ExternalSecret to a HelmChart HolosComponent. Refer to [APIObjects].
APIObjectMap APIObjectMap `json:"apiObjectMap,omitempty"`
// DeployFiles represents file paths relative to the cluster deploy directory
// with the value representing the file content. Intended for defining the
// ArgoCD Application resource or Flux Kustomization resource from within CUE,
// but may be used to render any file related to the build plan from CUE.
DeployFiles FileContentMap `json:"deployFiles,omitempty"`
// Kustomize represents a kubectl kustomize build post-processing step.
Kustomize `json:"kustomize,omitempty"`
// Skip causes holos to take no action regarding this component.
Skip bool `json:"skip" cue:"bool | *false"`
}
// Metadata represents data about the holos component such as the Name.
type Metadata struct {
// Name represents the name of the holos component.
Name string `json:"name"`
// Namespace is the primary namespace of the holos component. A holos
// component may manage resources in multiple namespaces, in this case
// consider setting the component namespace to default.
//
// This field is optional because not all resources require a namespace,
// particularly CRD's and DeployFiles functionality.
// +optional
Namespace string `json:"namespace,omitempty"`
}
// Kustomize represents resources necessary to execute a kustomize build.
// Intended for at least two use cases:
//
// 1. Process a [KustomizeBuild] [HolosComponent] which represents raw yaml
// file resources in a holos component directory.
// 2. Post process a [HelmChart] [HolosComponent] to inject istio, patch jobs,
// add custom labels, etc...
type Kustomize struct {
// KustomizeFiles holds file contents for kustomize, e.g. patch files.
KustomizeFiles FileContentMap `json:"kustomizeFiles,omitempty"`
// ResourcesFile is the file name used for api objects in kustomization.yaml
ResourcesFile string `json:"resourcesFile,omitempty"`
}

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@@ -0,0 +1,11 @@
package v1alpha2
const (
APIVersion = "v1alpha2"
BuildPlanKind = "BuildPlan"
HelmChartKind = "HelmChart"
// ChartDir is the directory name created in the holos component directory to cache a chart.
ChartDir = "vendor"
// ResourcesFile is the file name used to store component output when post-processing with kustomize.
ResourcesFile = "resources.yaml"
)

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@@ -1,52 +1,44 @@
// Code generated by cue get go. DO NOT EDIT.
//cue:generate cue get go github.com/holos-run/holos/api/core/v1alpha3
package v1alpha3
package v1alpha2
import "google.golang.org/protobuf/types/known/structpb"
type PlatformMetadata struct {
// Name represents the Platform name.
Name string `json:"name"`
}
// Platform represents a platform to manage. A Platform resource informs holos
// which components to build. The platform resource also acts as a container
// for the platform model form values provided by the PlatformService. The
// primary use case is to collect the cluster names, cluster types, platform
// model, and holos components to build into one resource.
#Platform: {
type Platform struct {
// Kind is a string value representing the resource this object represents.
kind: string & "Platform" @go(Kind)
Kind string `json:"kind" cue:"\"Platform\""`
// APIVersion represents the versioned schema of this representation of an object.
apiVersion: string & (string | *"v1alpha3") @go(APIVersion)
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
// Metadata represents data about the object such as the Name.
metadata: #PlatformMetadata @go(Metadata)
Metadata PlatformMetadata `json:"metadata"`
// Spec represents the specification.
spec: #PlatformSpec @go(Spec)
}
#PlatformMetadata: {
// Name represents the Platform name.
name: string @go(Name)
Spec PlatformSpec `json:"spec"`
}
// PlatformSpec represents the specification of a Platform. Think of a platform
// specification as a list of platform components to apply to a list of
// kubernetes clusters combined with the user-specified Platform Model.
#PlatformSpec: {
type PlatformSpec struct {
// Model represents the platform model holos gets from from the
// PlatformService.GetPlatform rpc method and provides to CUE using a tag.
model: structpb.#Struct & {...} @go(Model)
Model structpb.Struct `json:"model"`
// Components represents a list of holos components to manage.
components: [...#PlatformSpecComponent] @go(Components,[]PlatformSpecComponent)
Components []PlatformSpecComponent `json:"components"`
}
// PlatformSpecComponent represents a holos component to build or render.
#PlatformSpecComponent: {
type PlatformSpecComponent struct {
// Path is the path of the component relative to the platform root.
path: string @go(Path)
Path string `json:"path"`
// Cluster is the cluster name to provide when rendering the component.
cluster: string @go(Cluster)
Cluster string `json:"cluster"`
}

View File

@@ -1,8 +1,4 @@
// Code generated by cue get go. DO NOT EDIT.
//cue:generate cue get go github.com/holos-run/holos/api/core/v1alpha3
// Package v1alpha3 contains the core API contract between the holos cli and CUE
// Package v1alpha2 contains the core API contract between the holos cli and CUE
// configuration code. Platform designers, operators, and software developers
// use this API to write configuration in CUE which `holos` loads. The overall
// shape of the API defines imperative actions `holos` should carry out to
@@ -10,13 +6,13 @@
//
// [Platform] defines the complete configuration of a platform. With the holos
// reference platform this takes the shape of one management cluster and at
// least two workload cluster. Each cluster has multiple [Component]
// least two workload cluster. Each cluster has multiple [HolosComponent]
// resources applied to it.
//
// Each holos component path, e.g. `components/namespaces` produces exactly one
// [BuildPlan] which in turn contains a set of [Component] kinds.
// [BuildPlan] which in turn contains a set of [HolosComponent] kinds.
//
// The primary kinds of [Component] are:
// The primary kinds of [HolosComponent] are:
//
// 1. [HelmChart] to render config from a helm chart.
// 2. [KustomizeBuild] to render config from [Kustomize]
@@ -25,4 +21,6 @@
//
// Note that Holos operates as a data pipeline, so the output of a [HelmChart]
// may be provided to [Kustomize] for post-processing.
package v1alpha3
package v1alpha2
//go:generate ../../../hack/gendoc

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@@ -1,47 +1,38 @@
// Code generated by cue get go. DO NOT EDIT.
//cue:generate cue get go github.com/holos-run/holos/api/core/v1alpha3
package v1alpha3
package v1alpha2
// HelmChart represents a holos component which wraps around an upstream helm
// chart. Holos orchestrates helm by providing values obtained from CUE,
// renders the output using `helm template`, then post-processes the helm output
// yaml using the general functionality provided by [Component], for
// yaml using the general functionality provided by [HolosComponent], for
// example [Kustomize] post-rendering and mixing in additional kubernetes api
// objects.
#HelmChart: {
#Component
kind: string & "HelmChart" @go(Kind)
type HelmChart struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"HelmChart\""`
// Chart represents a helm chart to manage.
chart: #Chart @go(Chart)
Chart Chart `json:"chart"`
// ValuesContent represents the values.yaml file holos passes to the `helm
// template` command.
valuesContent: string @go(ValuesContent)
ValuesContent string `json:"valuesContent"`
// EnableHooks enables helm hooks when executing the `helm template` command.
enableHooks: bool & (bool | *false) @go(EnableHooks)
EnableHooks bool `json:"enableHooks" cue:"bool | *false"`
}
// Chart represents a helm chart.
#Chart: {
type Chart struct {
// Name represents the chart name.
name: string @go(Name)
Name string `json:"name"`
// Version represents the chart version.
version: string @go(Version)
Version string `json:"version"`
// Release represents the chart release when executing helm template.
release: string @go(Release)
Release string `json:"release"`
// Repository represents the repository to fetch the chart from.
repository?: #Repository @go(Repository)
Repository Repository `json:"repository,omitempty"`
}
// Repository represents a helm chart repository.
#Repository: {
name: string @go(Name)
url: string @go(URL)
type Repository struct {
Name string `json:"name"`
URL string `json:"url"`
}

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@@ -0,0 +1,10 @@
package v1alpha2
const KubernetesObjectsKind = "KubernetesObjects"
// KubernetesObjects represents a [HolosComponent] composed of Kubernetes API
// objects provided directly from CUE using [APIObjects].
type KubernetesObjects struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"KubernetesObjects\""`
}

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@@ -0,0 +1,8 @@
package v1alpha2
// KustomizeBuild represents a [HolosComponent] that renders plain yaml files in
// the holos component directory using `kubectl kustomize build`.
type KustomizeBuild struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"KustomizeBuild\""`
}

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@@ -1,5 +0,0 @@
---
title: Core Schemas
description: BuildPlan defines the holos rendering pipeline.
sidebar_position: 100
---

View File

@@ -1,388 +0,0 @@
// Package core contains schemas for a [Platform] and [BuildPlan]. Holos takes
// a [Platform] as input, then iterates over each [Component] to produce a
// [BuildPlan]. Holos evaluates the [BuildPlan] to produce fully rendered
// manifests, each an [Artifact].
package core
// BuildContextTag represents the cue tag holos render component uses to inject
// the json representation of a [BuildContext] for use in a BuildPlan.
const BuildContextTag string = "holos_build_context"
// ComponentNameTag represents the cue tag holos uses to inject a [Component]
// name from the holos render platform command to the holos render component
// command.
const ComponentNameTag string = "holos_component_name"
// ComponentPathTag represents the cue tag holos uses to inject a [Component]
// path relative to the cue module root from the holos render platform command
// to the holos render component command.
const ComponentPathTag string = "holos_component_path"
// ComponentLabelsTag represents the cue tag holos uses to inject the json
// representation of [Component] metadata labels from the holos render platform
// command to the holos render component command.
const ComponentLabelsTag string = "holos_component_labels"
// ComponentAnnotationsTag represents the tag holos uses to inject the json
// representation of [Component] metadata annotations from the holos render
// platform command to the holos render component command.
const ComponentAnnotationsTag = "holos_component_annotations"
//go:generate ../../../hack/gendoc
// BuildPlan represents an implementation of the [rendered manifest pattern].
// Holos processes a BuildPlan to produce one or more [Artifact] output files.
// BuildPlan artifact files usually contain Kubernetes manifests, but they may
// have any content.
//
// A BuildPlan usually produces two artifacts. One artifact contains a manifest
// of resources. A second artifact contains a GitOps resource to manage the
// first, usually an ArgoCD Application resource.
//
// Holos uses CUE to construct a BuildPlan. A future enhancement will support
// user defined executables providing a BuildPlan to Holos in the style of an
// [external credential provider].
//
// [rendered manifest pattern]: https://akuity.io/blog/the-rendered-manifests-pattern
// [external credential provider]: https://github.com/kubernetes/enhancements/blob/313ad8b59c80819659e1fbf0f165230f633f2b22/keps/sig-auth/541-external-credential-providers/README.md
type BuildPlan struct {
// Kind represents the type of the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"BuildPlan\""`
// APIVersion represents the versioned schema of the resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"string | *\"v1alpha5\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec specifies the desired state of the resource.
Spec BuildPlanSpec `json:"spec" yaml:"spec"`
}
// BuildPlanSpec represents the specification of the [BuildPlan].
type BuildPlanSpec struct {
// Artifacts represents the artifacts for holos to build.
Artifacts []Artifact `json:"artifacts" yaml:"artifacts"`
// Disabled causes the holos cli to disregard the build plan.
Disabled bool `json:"disabled,omitempty" yaml:"disabled,omitempty"`
}
// Artifact represents one fully rendered manifest produced by a [Transformer]
// sequence, which transforms a [Generator] collection. A [BuildPlan] produces
// an [Artifact] collection.
//
// Each Artifact produces one manifest file artifact. Generator Output values
// are used as Transformer Inputs. The Output field of the final [Transformer]
// should have the same value as the Artifact field.
//
// When there is more than one [Generator] there must be at least one
// [Transformer] to combine outputs into one Artifact. If there is a single
// Generator, it may directly produce the Artifact output.
//
// An Artifact is processed concurrently with other artifacts in the same
// [BuildPlan]. An Artifact should not use an output from another Artifact as
// an input. Each [Generator] may also run concurrently. Each [Transformer] is
// executed sequentially starting after all generators have completed.
//
// Output fields are write-once. It is an error for multiple Generators or
// Transformers to produce the same Output value within the context of a
// [BuildPlan].
type Artifact struct {
Artifact FilePath `json:"artifact,omitempty" yaml:"artifact,omitempty"`
Generators []Generator `json:"generators,omitempty" yaml:"generators,omitempty"`
Transformers []Transformer `json:"transformers,omitempty" yaml:"transformers,omitempty"`
Validators []Validator `json:"validators,omitempty" yaml:"validators,omitempty"`
Skip bool `json:"skip,omitempty" yaml:"skip,omitempty"`
}
// Generator generates Kubernetes resources. [Helm] and [Resources] are the
// most commonly used, often paired together to mix-in resources to an
// unmodified Helm chart. A simple [File] generator is also available for use
// with the [Kustomize] transformer.
//
// Each Generator in an [Artifact] must have a distinct Output value for a
// [Transformer] to reference.
//
// 1. [Resources] - Generates resources from CUE code.
// 2. [Helm] - Generates rendered yaml from a [Chart].
// 3. [File] - Generates data by reading a file from the component directory.
type Generator struct {
// Kind represents the kind of generator. Must be Resources, Helm, or File.
Kind string `json:"kind" yaml:"kind" cue:"\"Resources\" | \"Helm\" | \"File\""`
// Output represents a file for a Transformer or Artifact to consume.
Output FilePath `json:"output" yaml:"output"`
// Resources generator. Ignored unless kind is Resources. Resources are
// stored as a two level struct. The top level key is the Kind of resource,
// e.g. Namespace or Deployment. The second level key is an arbitrary
// InternalLabel. The third level is a map[string]any representing the
// Resource.
Resources Resources `json:"resources,omitempty" yaml:"resources,omitempty"`
// Helm generator. Ignored unless kind is Helm.
Helm Helm `json:"helm,omitempty" yaml:"helm,omitempty"`
// File generator. Ignored unless kind is File.
File File `json:"file,omitempty" yaml:"file,omitempty"`
}
// Resource represents one kubernetes api object.
type Resource map[string]any
// Resources represents Kubernetes resources. Most commonly used to mix
// resources into the [BuildPlan] generated from CUE, but may be generated from
// elsewhere.
type Resources map[Kind]map[InternalLabel]Resource
// File represents a simple single file copy [Generator]. Useful with a
// [Kustomize] [Transformer] to process plain manifest files stored in the
// component directory. Multiple File generators may be used to transform
// multiple resources.
type File struct {
// Source represents a file sub-path relative to the component path.
Source FilePath `json:"source" yaml:"source"`
}
// Helm represents a [Chart] manifest [Generator].
type Helm struct {
// Chart represents a helm chart to manage.
Chart Chart `json:"chart" yaml:"chart"`
// Values represents values for holos to marshal into values.yaml when
// rendering the chart. Values follow ValueFiles when both are provided.
Values Values `json:"values" yaml:"values"`
// ValueFiles represents hierarchial value files passed in order to the helm
// template -f flag. Useful for migration from an ApplicationSet. Use Values
// instead. ValueFiles precede Values when both are provided.
ValueFiles []ValueFile `json:"valueFiles,omitempty" yaml:"valueFiles,omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `json:"enableHooks,omitempty" yaml:"enableHooks,omitempty"`
// Namespace represents the helm namespace flag
Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:"apiVersions,omitempty" yaml:"apiVersions,omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:"kubeVersion,omitempty" yaml:"kubeVersion,omitempty"`
}
// ValueFile represents one Helm value file produced from CUE.
type ValueFile struct {
// Name represents the file name, e.g. "region-values.yaml"
Name string `json:"name" yaml:"name"`
// Kind is a discriminator.
Kind string `json:"kind" yaml:"kind" cue:"\"Values\""`
// Values represents values for holos to marshal into the file name specified
// by Name when rendering the chart.
Values Values `json:"values,omitempty" yaml:"values,omitempty"`
}
// Values represents [Helm] Chart values generated from CUE.
type Values map[string]any
// Chart represents a [Helm] Chart.
type Chart struct {
// Name represents the chart name.
Name string `json:"name" yaml:"name"`
// Version represents the chart version.
Version string `json:"version" yaml:"version"`
// Release represents the chart release when executing helm template.
Release string `json:"release" yaml:"release"`
// Repository represents the repository to fetch the chart from.
Repository Repository `json:"repository,omitempty" yaml:"repository,omitempty"`
}
// Repository represents a [Helm] [Chart] repository.
//
// The Auth field is useful to configure http basic authentication to the Helm
// repository. Holos gets the username and password from the environment
// variables represented by the Auth field.
type Repository struct {
Name string `json:"name" yaml:"name"`
URL string `json:"url" yaml:"url"`
Auth Auth `json:"auth,omitempty" yaml:"auth,omitempty"`
}
// Auth represents environment variable names containing auth credentials.
type Auth struct {
Username AuthSource `json:"username" yaml:"username"`
Password AuthSource `json:"password" yaml:"password"`
}
// AuthSource represents a source for the value of an [Auth] field.
type AuthSource struct {
Value string `json:"value,omitempty" yaml:"value,omitempty"`
FromEnv string `json:"fromEnv,omitempty" yaml:"fromEnv,omitempty"`
}
// Transformer combines multiple inputs from prior [Generator] or [Transformer]
// outputs into one output. [Kustomize] is the most commonly used transformer.
// A simple [Join] is also supported for use with plain manifest files.
//
// 1. [Kustomize] - Patch and transform the output from prior generators or
// transformers. See [Introduction to Kustomize].
// 2. [Join] - Concatenate multiple prior outputs into one output.
//
// [Introduction to Kustomize]: https://kubectl.docs.kubernetes.io/guides/config_management/introduction/
type Transformer struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Kustomize\" | \"Join\""`
// Inputs represents the files to transform. The Output of prior Generators
// and Transformers.
Inputs []FilePath `json:"inputs" yaml:"inputs"`
// Output represents a file for a subsequent Transformer or Artifact to
// consume.
Output FilePath `json:"output" yaml:"output"`
// Kustomize transformer. Ignored unless kind is Kustomize.
Kustomize Kustomize `json:"kustomize,omitempty" yaml:"kustomize,omitempty"`
// Join transformer. Ignored unless kind is Join.
Join Join `json:"join,omitempty" yaml:"join,omitempty"`
}
// Join represents a [Transformer] using [bytes.Join] to concatenate multiple
// inputs into one output with a separator. Useful for combining output from
// [Helm] and [Resources] together into one [Artifact] when [Kustomize] is
// otherwise unnecessary.
//
// [bytes.Join]: https://pkg.go.dev/bytes#Join
type Join struct {
Separator string `json:"separator,omitempty" yaml:"separator,omitempty"`
}
// Kustomize represents a kustomization [Transformer].
type Kustomize struct {
// Kustomization represents the decoded kustomization.yaml file
Kustomization Kustomization `json:"kustomization" yaml:"kustomization"`
// Files holds file contents for kustomize, e.g. patch files.
Files FileContentMap `json:"files,omitempty" yaml:"files,omitempty"`
}
// Kustomization represents a kustomization.yaml file for use with the
// [Kustomize] [Transformer]. Untyped to avoid tightly coupling holos to
// kubectl versions which was a problem for the Flux maintainers. Type checking
// is expected to happen in CUE against the kubectl version the user prefers.
type Kustomization map[string]any
// FileContentMap represents a mapping of file paths to file contents.
type FileContentMap map[FilePath]FileContent
// FilePath represents a file path.
type FilePath string
// FileContent represents file contents.
type FileContent string
// Validator validates files. Useful to validate an [Artifact] prior to writing
// it out to the final destination. Holos may execute validators concurrently.
// See the [validators] tutorial for an end to end example.
//
// [validators]: https://holos.run/docs/v1alpha5/tutorial/validators/
type Validator struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Command\""`
// Inputs represents the files to validate. Usually the final Artifact.
Inputs []FilePath `json:"inputs" yaml:"inputs"`
// Command represents a validation command. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
// Command represents a command vetting one or more artifacts. Holos appends
// fully qualified input file paths to the end of the args list, then executes
// the command. Inputs are written into a temporary directory prior to
// executing the command and removed afterwards.
type Command struct {
Args []string `json:"args,omitempty" yaml:"args,omitempty"`
}
// InternalLabel is an arbitrary unique identifier internal to holos itself.
// The holos cli is expected to never write a InternalLabel value to rendered
// output files, therefore use a InternalLabel when the identifier must be
// unique and internal. Defined as a type for clarity and type checking.
type InternalLabel string
// Kind is a discriminator. Defined as a type for clarity and type checking.
type Kind string
// Metadata represents data about the resource such as the Name.
type Metadata struct {
// Name represents the resource name.
Name string `json:"name" yaml:"name"`
// Labels represents a resource selector.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. For example
// holos uses the `app.holos.run/description` annotation to log resources in a
// user customized way.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}
// Platform represents a platform to manage. A Platform specifies a [Component]
// collection and integrates the components together into a holistic platform.
// Holos iterates over the [Component] collection producing a [BuildPlan] for
// each, which holos then executes to render manifests.
//
// Inspect a Platform resource holos would process by executing:
//
// cue export --out yaml ./platform
type Platform struct {
// Kind is a string value representing the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"Platform\""`
// APIVersion represents the versioned schema of this resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"string | *\"v1alpha5\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec represents the platform specification.
Spec PlatformSpec `json:"spec" yaml:"spec"`
}
// PlatformSpec represents the platform specification.
type PlatformSpec struct {
// Components represents a collection of holos components to manage.
Components []Component `json:"components" yaml:"components"`
}
// Component represents the complete context necessary to produce a [BuildPlan]
// from a path containing parameterized CUE configuration.
type Component struct {
// Name represents the name of the component. Injected as the tag variable
// "holos_component_name".
Name string `json:"name" yaml:"name"`
// Path represents the path of the component relative to the platform root.
// Injected as the tag variable "holos_component_path".
Path string `json:"path" yaml:"path"`
// Instances represents additional cue instance paths to unify with Path.
// Useful to unify data files into a component BuildPlan. Added in holos
// 0.101.7.
Instances []Instance `json:"instances,omitempty" yaml:"instances,omitempty"`
// WriteTo represents the holos render component --write-to flag. If empty,
// the default value for the --write-to flag is used.
WriteTo string `json:"writeTo,omitempty" yaml:"writeTo,omitempty"`
// Parameters represent user defined input variables to produce various
// [BuildPlan] resources from one component path. Injected as CUE @tag
// variables. Parameters with a "holos_" prefix are reserved for use by the
// Holos Authors. Multiple environments are a prime example of an input
// parameter that should always be user defined, never defined by Holos.
Parameters map[string]string `json:"parameters,omitempty" yaml:"parameters,omitempty"`
// Labels represent selector labels for the component. Copied to the
// resulting BuildPlan.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. Use the
// `app.holos.run/description` to customize the log message of each BuildPlan.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}
// Instance represents a data instance to unify with the configuration.
//
// Useful to unify json and yaml files with cue configuration files for
// integration with other tools. For example, executing holos render platform
// from a pull request workflow after [Kargo] executes the [yaml update] and
// [git wait for pr] promotion steps.
//
// [Kargo]: https://docs.kargo.io/
// [yaml update]: https://docs.kargo.io/references/promotion-steps#yaml-update
// [git wait for pr]: https://docs.kargo.io/references/promotion-steps#git-wait-for-pr
type Instance struct {
// Kind is a discriminator.
Kind string `json:"kind" yaml:"kind" cue:"\"ExtractYAML\""`
// Ignored unless kind is ExtractYAML.
ExtractYAML ExtractYAML `json:"extractYAML,omitempty" yaml:"extractYAML,omitempty"`
}
// ExtractYAML represents a cue data instance encoded as yaml or json. If Path
// refers to a directory all files in the directory are extracted
// non-recursively. Otherwise, path must refer to a file.
type ExtractYAML struct {
Path string `json:"path" yaml:"path"`
}

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@@ -1,5 +0,0 @@
---
title: Core Schemas
description: BuildPlan defines the holos rendering pipeline.
sidebar_position: 100
---

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@@ -1,453 +0,0 @@
// Package core contains schemas for a [Platform] and [BuildPlan]. Holos takes
// a [Platform] as input, then iterates over each [Component] to produce a
// [BuildPlan]. Holos processes the [BuildPlan] to produce fully rendered
// manifests, each an [Artifact].
package core
// BuildContextTag represents the cue tag holos render component uses to inject
// the json representation of a [BuildContext] for use in a BuildPlan.
const BuildContextTag string = "holos_build_context"
// ComponentNameTag represents the cue tag holos uses to inject a [Component]
// name from the holos render platform command to the holos render component
// command.
const ComponentNameTag string = "holos_component_name"
// ComponentPathTag represents the cue tag holos uses to inject a [Component]
// path relative to the cue module root from the holos render platform command
// to the holos render component command.
const ComponentPathTag string = "holos_component_path"
// ComponentLabelsTag represents the cue tag holos uses to inject the json
// representation of [Component] metadata labels from the holos render platform
// command to the holos render component command.
const ComponentLabelsTag string = "holos_component_labels"
// ComponentAnnotationsTag represents the tag holos uses to inject the json
// representation of [Component] metadata annotations from the holos render
// platform command to the holos render component command.
const ComponentAnnotationsTag = "holos_component_annotations"
//go:generate ../../../hack/gendoc
// BuildPlan represents an implementation of the [rendered manifest pattern].
// Holos processes a BuildPlan to produce one or more [Artifact] output files.
// BuildPlan artifact files usually contain Kubernetes manifests, but they may
// have any content.
//
// A BuildPlan usually produces two artifacts. One artifact contains a manifest
// of resources. A second artifact contains a GitOps resource to manage the
// first, usually an ArgoCD Application resource.
//
// Holos uses CUE to construct a BuildPlan. Holos injects late binding values
// such as the build temp dir using the [BuildContext].
//
// [rendered manifest pattern]: https://akuity.io/blog/the-rendered-manifests-pattern
//
// [external credential provider]: https://github.com/kubernetes/enhancements/blob/313ad8b59c80819659e1fbf0f165230f633f2b22/keps/sig-auth/541-external-credential-providers/README.md
type BuildPlan struct {
// APIVersion represents the versioned schema of the resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"\"v1alpha6\""`
// Kind represents the type of the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"BuildPlan\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec specifies the desired state of the resource.
Spec BuildPlanSpec `json:"spec" yaml:"spec"`
// BuildContext represents values injected by holos just before evaluating a
// BuildPlan, for example the tempDir used for the build.
BuildContext BuildContext `json:"buildContext" yaml:"buildContext"`
}
// BuildContext represents build context values owned by the holos render
// component command. End users should not manage context field values. End
// users may reference fields from within CUE to refer to late binding
// concrete values defined just before holos executes a [BuildPlan].
//
// Holos injects build context values by marshalling this struct to json through
// the holos_build_context cue tag.
//
// Example usage from cue to produce a [BuildPlan]:
//
// package holos
//
// import (
// "encoding/json"
// "github.com/holos-run/holos/api/core/v1alpha6:core"
// )
//
// _BuildContextJSON: string | *"{}" @tag(holos_build_context, type=string)
// BuildContext: core.#BuildContext & json.Unmarshal(_BuildContextJSON)
//
// holos: core.#BuildPlan & {
// buildContext: BuildContext
// "spec": {
// "artifacts": [
// {
// artifact: "components/slice",
// "transformers": [
// {
// "kind": "Command"
// "inputs": ["resources.gen.yaml"]
// "output": artifact
// "command": {
// "args": [
// "kubectl-slice",
// "-f",
// "\(buildContext.tempDir)/resources.gen.yaml",
// "-o",
// "\(buildContext.tempDir)/\(artifact)",
// ]
// }
// }
// ]
// }
// ]
// }
// }
type BuildContext struct {
// TempDir represents the temporary directory managed and owned by the holos
// render component command for the execution of one BuildPlan. Multiple
// tasks in the build plan share this temporary directory and therefore should
// avoid reading and writing into the same sub-directories as one another.
TempDir string `json:"tempDir" yaml:"tempDir" cue:"string | *\"${TEMP_DIR_PLACEHOLDER}\""`
// RootDir represents the fully qualified path to the platform root directory.
// Useful to construct arguments for commands in BuildPlan tasks.
RootDir string `json:"rootDir" yaml:"rootDir" cue:"string | *\"${ROOT_DIR_PLACEHOLDER}\""`
// LeafDir represents the cleaned path to the holos component relative to the
// platform root. Useful to construct arguments for commands in BuildPlan
// tasks.
LeafDir string `json:"leafDir" yaml:"leafDir" cue:"string | *\"${LEAF_DIR_PLACEHOLDER}\""`
// HolosExecutable represents the fully qualified path to the holos
// executable. Useful to execute tools embedded as subcommands such as holos
// cue vet.
HolosExecutable string `json:"holosExecutable" yaml:"holosExecutable" cue:"string | *\"holos\""`
}
// TODO(jjm): Decide if RootDir and LeafDir are useful. We have
// [Component.Path] and [Command] executes with the platform root as the current
// working directory.
// BuildPlanSpec represents the specification of the [BuildPlan].
type BuildPlanSpec struct {
// Artifacts represents the artifacts for holos to build.
Artifacts []Artifact `json:"artifacts" yaml:"artifacts"`
// Disabled causes the holos render platform command to skip the BuildPlan.
Disabled bool `json:"disabled,omitempty" yaml:"disabled,omitempty"`
}
// Artifact represents one fully rendered manifest produced by a [Transformer]
// sequence, which transforms a [Generator] collection. A [BuildPlan] produces
// an [Artifact] collection.
//
// Each Artifact produces one manifest file or directory artifact. Generator
// Output values are used as Transformer Inputs. The Output field of the final
// [Transformer] should have the same value as the Artifact field.
//
// When there is more than one [Generator] there should be at least one
// [Transformer] to combine outputs into one Artifact file, or the final
// artifact should be a directory containing the outputs of the generators. If
// there is a single Generator, it may directly produce the Artifact output.
//
// An Artifact is processed concurrently with other artifacts in the same
// [BuildPlan]. One Artifact must not use an output of another Artifact as an
// input. Each [Generator] within an artifact also runs concurrently with
// generators of the same artifact. Each [Transformer] is executed sequentially
// starting after all generators have completed.
//
// Output fields are write-once. It is an error for multiple Generators or
// Transformers to produce the same Output value within the context of a
// [BuildPlan].
//
// When directories are used as inputs or outputs, they behave similar to how
// `git` works with directories. When the output field references a directory,
// all files within the directory are recursively stored using their relative
// path as a key. Similar to git add . When the input field references an
// absent file, a / is appended and the resulting value is used as a prefix
// match against all previous task outputs.
type Artifact struct {
Artifact FileOrDirectoryPath `json:"artifact,omitempty" yaml:"artifact,omitempty"`
Generators []Generator `json:"generators,omitempty" yaml:"generators,omitempty"`
Transformers []Transformer `json:"transformers,omitempty" yaml:"transformers,omitempty"`
Validators []Validator `json:"validators,omitempty" yaml:"validators,omitempty"`
Skip bool `json:"skip,omitempty" yaml:"skip,omitempty"`
}
// Generator generates Kubernetes resources. [Helm] and [Resources] are the
// most commonly used, often paired together to mix-in resources to an
// unmodified Helm chart. A simple [File] generator is also available for use
// with the [Kustomize] transformer.
//
// Each Generator in an [Artifact] must have a distinct Output value for a
// [Transformer] to reference.
//
// 1. [Resources] - Generates resources from CUE code.
// 2. [Helm] - Generates rendered yaml from a [Chart].
// 3. [File] - Generates data by reading a file from the component directory.
// 4. [Command] - Generates data by executing an user defined command.
type Generator struct {
// Kind represents the kind of generator. Must be Resources, Helm, or File.
Kind string `json:"kind" yaml:"kind" cue:"\"Resources\" | \"Helm\" | \"File\" | \"Command\""`
// Output represents a file for a Transformer or Artifact to consume.
Output FileOrDirectoryPath `json:"output" yaml:"output"`
// Resources generator. Ignored unless kind is Resources. Resources are
// stored as a two level struct. The top level key is the Kind of resource,
// e.g. Namespace or Deployment. The second level key is an arbitrary
// InternalLabel. The third level is a map[string]any representing the
// Resource.
Resources Resources `json:"resources,omitempty" yaml:"resources,omitempty"`
// Helm generator. Ignored unless kind is Helm.
Helm Helm `json:"helm,omitempty" yaml:"helm,omitempty"`
// File generator. Ignored unless kind is File.
File File `json:"file,omitempty" yaml:"file,omitempty"`
// Command generator. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
// Resource represents one kubernetes api object.
type Resource map[string]any
// Resources represents Kubernetes resources. Most commonly used to mix
// resources into the [BuildPlan] generated from CUE, but may be generated from
// elsewhere.
type Resources map[Kind]map[InternalLabel]Resource
// File represents a simple single file copy [Generator]. Useful with a
// [Kustomize] [Transformer] to process plain manifest files stored in the
// component directory. Multiple File generators may be used to transform
// multiple resources.
type File struct {
// Source represents a file sub-path relative to the component path.
Source FilePath `json:"source" yaml:"source"`
}
// Helm represents a [Chart] manifest [Generator].
type Helm struct {
// Chart represents a helm chart to manage.
Chart Chart `json:"chart" yaml:"chart"`
// Values represents values for holos to marshal into values.yaml when
// rendering the chart. Values follow ValueFiles when both are provided.
Values Values `json:"values" yaml:"values"`
// ValueFiles represents hierarchial value files passed in order to the helm
// template -f flag. Useful for migration from an ApplicationSet. Use Values
// instead. ValueFiles precede Values when both are provided.
ValueFiles []ValueFile `json:"valueFiles,omitempty" yaml:"valueFiles,omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `json:"enableHooks,omitempty" yaml:"enableHooks,omitempty"`
// Namespace represents the helm namespace flag
Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:"apiVersions,omitempty" yaml:"apiVersions,omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:"kubeVersion,omitempty" yaml:"kubeVersion,omitempty"`
}
// ValueFile represents one Helm value file produced from CUE.
type ValueFile struct {
// Name represents the file name, e.g. "region-values.yaml"
Name string `json:"name" yaml:"name"`
// Kind is a discriminator.
Kind string `json:"kind" yaml:"kind" cue:"\"Values\""`
// Values represents values for holos to marshal into the file name specified
// by Name when rendering the chart.
Values Values `json:"values,omitempty" yaml:"values,omitempty"`
}
// Values represents [Helm] Chart values generated from CUE.
type Values map[string]any
// Chart represents a [Helm] Chart.
type Chart struct {
// Name represents the chart name.
Name string `json:"name" yaml:"name"`
// Version represents the chart version.
Version string `json:"version" yaml:"version"`
// Release represents the chart release when executing helm template.
Release string `json:"release" yaml:"release"`
// Repository represents the repository to fetch the chart from.
Repository Repository `json:"repository,omitempty" yaml:"repository,omitempty"`
}
// Repository represents a [Helm] [Chart] repository.
//
// The Auth field is useful to configure http basic authentication to the Helm
// repository. Holos gets the username and password from the environment
// variables represented by the Auth field.
type Repository struct {
Name string `json:"name,omitempty" yaml:"name,omitempty"`
URL string `json:"url,omitempty" yaml:"url,omitempty"`
Auth Auth `json:"auth,omitempty" yaml:"auth,omitempty"`
}
// Auth represents environment variable names containing auth credentials.
type Auth struct {
Username AuthSource `json:"username" yaml:"username"`
Password AuthSource `json:"password" yaml:"password"`
}
// AuthSource represents a source for the value of an [Auth] field.
type AuthSource struct {
Value string `json:"value,omitempty" yaml:"value,omitempty"`
FromEnv string `json:"fromEnv,omitempty" yaml:"fromEnv,omitempty"`
}
// Transformer combines multiple inputs from prior [Generator] or [Transformer]
// outputs into one output. [Kustomize] is the most commonly used transformer.
// A simple [Join] is also supported for use with plain manifest files.
//
// 1. [Kustomize] - Patch and transform the output from prior generators or
// transformers. See [Introduction to Kustomize].
// 2. [Join] - Concatenate multiple prior outputs into one output.
// 3. [Command] - Transforms data by executing an user defined command.
//
// [Introduction to Kustomize]: https://kubectl.docs.kubernetes.io/guides/config_management/introduction/
type Transformer struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Kustomize\" | \"Join\" | \"Command\""`
// Inputs represents the files to transform. The Output of prior Generators
// and Transformers.
Inputs []FileOrDirectoryPath `json:"inputs" yaml:"inputs"`
// Output represents a file or directory for a subsequent Transformer or
// Artifact to consume.
Output FileOrDirectoryPath `json:"output" yaml:"output"`
// Kustomize transformer. Ignored unless kind is Kustomize.
Kustomize Kustomize `json:"kustomize,omitempty" yaml:"kustomize,omitempty"`
// Join transformer. Ignored unless kind is Join.
Join Join `json:"join,omitempty" yaml:"join,omitempty"`
// Command transformer. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
// Join represents a [Transformer] using [bytes.Join] to concatenate multiple
// inputs into one output with a separator. Useful for combining output from
// [Helm] and [Resources] together into one [Artifact] when [Kustomize] is
// otherwise unnecessary.
//
// [bytes.Join]: https://pkg.go.dev/bytes#Join
type Join struct {
Separator string `json:"separator,omitempty" yaml:"separator,omitempty"`
}
// Kustomize represents a kustomization [Transformer].
type Kustomize struct {
// Kustomization represents the decoded kustomization.yaml file
Kustomization Kustomization `json:"kustomization" yaml:"kustomization"`
// Files holds file contents for kustomize, e.g. patch files.
Files FileContentMap `json:"files,omitempty" yaml:"files,omitempty"`
}
// Kustomization represents a kustomization.yaml file for use with the
// [Kustomize] [Transformer]. Untyped to avoid tightly coupling holos to
// kubectl versions which was a problem for the Flux maintainers. Type checking
// is expected to happen in CUE against the kubectl version the user prefers.
type Kustomization map[string]any
// FileContentMap represents a mapping of file paths to file contents.
type FileContentMap map[FilePath]FileContent
// FilePath represents a file path.
type FilePath string
// FileOrDirectoryPath represents a file or a directory path.
type FileOrDirectoryPath string
// FileContent represents file contents.
type FileContent string
// Validator validates files. Useful to validate an [Artifact] prior to writing
// it out to the final destination. Holos may execute validators concurrently.
// See the [validators] tutorial for an end to end example.
//
// [validators]: https://holos.run/docs/v1alpha6/tutorial/validators/
type Validator struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Command\""`
// Inputs represents the files to validate. Usually the final Artifact.
Inputs []FileOrDirectoryPath `json:"inputs" yaml:"inputs"`
// Command validator. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
// Command represents a [BuildPlan] task implemented by executing an user
// defined system command. A task is defined as a [Generator], [Transformer],
// or [Validator]. Commands are executed with the working directory set to the
// platform root.
type Command struct {
// DisplayName of the command. The basename of args[0] is used if empty.
DisplayName string `json:"displayName,omitempty" yaml:"displayName,omitempty"`
// Args represents the argument vector passed to the os. to execute the
// command.
Args []string `json:"args,omitempty" yaml:"args,omitempty"`
// IsStdoutOutput captures the command stdout as the task output if true.
IsStdoutOutput bool `json:"isStdoutOutput,omitempty" yaml:"isStdoutOutput,omitempty"`
}
// InternalLabel is an arbitrary unique identifier internal to holos itself.
// The holos cli is expected to never write a InternalLabel value to rendered
// output files, therefore use a InternalLabel when the identifier must be
// unique and internal. Defined as a type for clarity and type checking.
type InternalLabel string
// Kind is a discriminator. Defined as a type for clarity and type checking.
type Kind string
// Metadata represents data about the resource such as the Name.
type Metadata struct {
// Name represents the resource name.
Name string `json:"name" yaml:"name"`
// Labels represents a resource selector.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. For example
// holos uses the `app.holos.run/description` annotation to log resources in a
// user customized way.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}
// Platform represents a platform to manage. A Platform specifies a [Component]
// collection and integrates the components together into a holistic platform.
// Holos iterates over the [Component] collection producing a [BuildPlan] for
// each, which holos then executes to render manifests.
//
// Inspect a Platform resource holos would process by executing:
//
// cue export --out yaml ./platform
type Platform struct {
// APIVersion represents the versioned schema of this resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"string | *\"v1alpha6\""`
// Kind is a string value representing the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"Platform\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec represents the platform specification.
Spec PlatformSpec `json:"spec" yaml:"spec"`
}
// PlatformSpec represents the platform specification.
type PlatformSpec struct {
// Components represents a collection of holos components to manage.
Components []Component `json:"components" yaml:"components"`
}
// Component represents the complete context necessary to produce a [BuildPlan]
// from a path containing parameterized CUE configuration.
type Component struct {
// Name represents the name of the component. Injected as the tag variable
// "holos_component_name".
Name string `json:"name" yaml:"name"`
// Path represents the path of the component relative to the platform root.
// Injected as the tag variable "holos_component_path".
Path string `json:"path" yaml:"path"`
// Parameters represent user defined input variables to produce various
// [BuildPlan] resources from one component path. Injected as CUE @tag
// variables. Parameters with a "holos_" prefix are reserved for use by the
// Holos Authors. Multiple environments are a prime example of an input
// parameter that should always be user defined, never defined by Holos.
Parameters map[string]string `json:"parameters,omitempty" yaml:"parameters,omitempty"`
// Labels represent selector labels for the component. Holos copies Labels
// from the Component to the resulting BuildPlan.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. Use the
// `app.holos.run/description` to customize the log message of each BuildPlan.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}

37
api/meta/v1alpha2/meta.go Normal file
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package v1alpha2
// TypeMeta describes an individual object in an API response or request with
// strings representing the type of the object and its API schema version.
// Structures that are versioned or persisted should inline TypeMeta.
type TypeMeta struct {
// Kind is a string value representing the resource this object represents.
Kind string `json:"kind"`
// APIVersion defines the versioned schema of this representation of an object.
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
}
func (tm *TypeMeta) GetKind() string {
return tm.Kind
}
func (tm *TypeMeta) GetAPIVersion() string {
return tm.APIVersion
}
// Discriminator discriminates the kind of an api object.
type Discriminator interface {
// GetKind returns Kind.
GetKind() string
// GetAPIVersion returns APIVersion.
GetAPIVersion() string
}
// ObjectMeta represents metadata of a holos component object. The fields are a
// copy of upstream kubernetes api machinery but are holos objects distinct from
// kubernetes api objects.
type ObjectMeta struct {
// Name uniquely identifies the holos component instance and must be suitable as a file name.
Name string `json:"name,omitempty"`
// Namespace confines a holos component to a single namespace via kustomize if set.
Namespace string `json:"namespace,omitempty"`
}

55
api/v1alpha1/buildplan.go Normal file
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package v1alpha1
import (
"fmt"
"strings"
)
// BuildPlan is the primary interface between CUE and the Holos cli.
type BuildPlan struct {
TypeMeta `json:",inline" yaml:",inline"`
// Metadata represents the holos component name
Metadata ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty"`
Spec BuildPlanSpec `json:"spec,omitempty" yaml:"spec,omitempty"`
}
type BuildPlanSpec struct {
Disabled bool `json:"disabled,omitempty" yaml:"disabled,omitempty"`
Components BuildPlanComponents `json:"components,omitempty" yaml:"components,omitempty"`
// DeployFiles keys represent file paths relative to the cluster deploy
// directory. Map values represent the string encoded file contents. Used to
// write the argocd Application, but may be used to render any file from CUE.
DeployFiles FileContentMap `json:"deployFiles,omitempty" yaml:"deployFiles,omitempty"`
}
type BuildPlanComponents struct {
HelmChartList []HelmChart `json:"helmChartList,omitempty" yaml:"helmChartList,omitempty"`
KubernetesObjectsList []KubernetesObjects `json:"kubernetesObjectsList,omitempty" yaml:"kubernetesObjectsList,omitempty"`
KustomizeBuildList []KustomizeBuild `json:"kustomizeBuildList,omitempty" yaml:"kustomizeBuildList,omitempty"`
Resources map[string]KubernetesObjects `json:"resources,omitempty" yaml:"resources,omitempty"`
}
func (bp *BuildPlan) Validate() error {
errs := make([]string, 0, 2)
if bp.Kind != BuildPlanKind {
errs = append(errs, fmt.Sprintf("kind invalid: want: %s have: %s", BuildPlanKind, bp.Kind))
}
if bp.APIVersion != APIVersion {
errs = append(errs, fmt.Sprintf("apiVersion invalid: want: %s have: %s", APIVersion, bp.APIVersion))
}
if len(errs) > 0 {
return fmt.Errorf("invalid BuildPlan: " + strings.Join(errs, ", "))
}
return nil
}
func (bp *BuildPlan) ResultCapacity() (count int) {
if bp == nil {
return 0
}
count = len(bp.Spec.Components.HelmChartList) +
len(bp.Spec.Components.KubernetesObjectsList) +
len(bp.Spec.Components.KustomizeBuildList) +
len(bp.Spec.Components.Resources)
return count
}

30
api/v1alpha1/component.go Normal file
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package v1alpha1
// HolosComponent defines the fields common to all holos component kinds including the Render Result.
type HolosComponent struct {
TypeMeta `json:",inline" yaml:",inline"`
// Metadata represents the holos component name
Metadata ObjectMeta `json:"metadata,omitempty" yaml:"metadata,omitempty"`
// APIObjectMap holds the marshalled representation of api objects. Think of
// these as resources overlaid at the back of the render pipeline.
APIObjectMap APIObjectMap `json:"apiObjectMap,omitempty" yaml:"apiObjectMap,omitempty"`
// Kustomization holds the marshalled representation of the flux kustomization
// which reconciles resources in git with the api server.
Kustomization `json:",inline" yaml:",inline"`
// Kustomize represents a kubectl kustomize build post-processing step.
Kustomize `json:",inline" yaml:",inline"`
// Skip causes holos to take no action regarding the component.
Skip bool
}
func (hc *HolosComponent) NewResult() *Result {
return &Result{HolosComponent: *hc}
}
func (hc *HolosComponent) GetAPIVersion() string {
return hc.APIVersion
}
func (hc *HolosComponent) GetKind() string {
return hc.Kind
}

11
api/v1alpha1/constants.go Normal file
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package v1alpha1
const (
APIVersion = "holos.run/v1alpha1"
BuildPlanKind = "BuildPlan"
HelmChartKind = "HelmChart"
// ChartDir is the directory name created in the holos component directory to cache a chart.
ChartDir = "vendor"
// ResourcesFile is the file name used to store component output when post-processing with kustomize.
ResourcesFile = "resources.yaml"
)

2
api/v1alpha1/doc.go Normal file
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// Package v1alpha1 defines the api boundary between CUE and Holos.
package v1alpha1

13
api/v1alpha1/form.go Normal file
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package v1alpha1
import object "github.com/holos-run/holos/service/gen/holos/object/v1alpha1"
// Form represents a collection of Formly json powered form.
type Form struct {
TypeMeta `json:",inline" yaml:",inline"`
Spec FormSpec `json:"spec" yaml:"spec"`
}
type FormSpec struct {
Form object.Form `json:"form" yaml:"form"`
}

184
api/v1alpha1/helm.go Normal file
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package v1alpha1
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"syscall"
"github.com/holos-run/holos"
"github.com/holos-run/holos/internal/errors"
"github.com/holos-run/holos/internal/logger"
"github.com/holos-run/holos/internal/util"
)
// A HelmChart represents a helm command to provide chart values in order to render kubernetes api objects.
type HelmChart struct {
HolosComponent `json:",inline" yaml:",inline"`
// Namespace is the namespace to install into. TODO: Use metadata.namespace instead.
Namespace string `json:"namespace"`
Chart Chart `json:"chart"`
ValuesContent string `json:"valuesContent"`
EnableHooks bool `json:"enableHooks"`
}
type Chart struct {
Name string `json:"name"`
Version string `json:"version"`
Release string `json:"release"`
Repository Repository `json:"repository,omitempty"`
}
type Repository struct {
Name string `json:"name"`
URL string `json:"url"`
}
func (hc *HelmChart) Render(ctx context.Context, path holos.InstancePath) (*Result, error) {
result := Result{HolosComponent: hc.HolosComponent}
if err := hc.helm(ctx, &result, path); err != nil {
return nil, err
}
result.addObjectMap(ctx, hc.APIObjectMap)
if err := result.kustomize(ctx); err != nil {
return nil, errors.Wrap(fmt.Errorf("could not kustomize: %w", err))
}
return &result, nil
}
// runHelm provides the values produced by CUE to helm template and returns
// the rendered kubernetes api objects in the result.
func (hc *HelmChart) helm(ctx context.Context, r *Result, path holos.InstancePath) error {
log := logger.FromContext(ctx).With("chart", hc.Chart.Name)
if hc.Chart.Name == "" {
log.WarnContext(ctx, "skipping helm: no chart name specified, use a different component type")
return nil
}
cachedChartPath := filepath.Join(string(path), ChartDir, filepath.Base(hc.Chart.Name))
if isNotExist(cachedChartPath) {
// Add repositories
repo := hc.Chart.Repository
if repo.URL != "" {
out, err := util.RunCmd(ctx, "helm", "repo", "add", repo.Name, repo.URL)
if err != nil {
log.ErrorContext(ctx, "could not run helm", "stderr", out.Stderr.String(), "stdout", out.Stdout.String())
return errors.Wrap(fmt.Errorf("could not run helm repo add: %w", err))
}
// Update repository
out, err = util.RunCmd(ctx, "helm", "repo", "update", repo.Name)
if err != nil {
log.ErrorContext(ctx, "could not run helm", "stderr", out.Stderr.String(), "stdout", out.Stdout.String())
return errors.Wrap(fmt.Errorf("could not run helm repo update: %w", err))
}
} else {
log.DebugContext(ctx, "no chart repository url proceeding assuming oci chart")
}
// Cache the chart
if err := cacheChart(ctx, path, ChartDir, hc.Chart); err != nil {
return fmt.Errorf("could not cache chart: %w", err)
}
}
// Write values file
tempDir, err := os.MkdirTemp("", "holos")
if err != nil {
return errors.Wrap(fmt.Errorf("could not make temp dir: %w", err))
}
defer util.Remove(ctx, tempDir)
valuesPath := filepath.Join(tempDir, "values.yaml")
if err := os.WriteFile(valuesPath, []byte(hc.ValuesContent), 0644); err != nil {
return errors.Wrap(fmt.Errorf("could not write values: %w", err))
}
log.DebugContext(ctx, "helm: wrote values", "path", valuesPath, "bytes", len(hc.ValuesContent))
// Run charts
chart := hc.Chart
args := []string{"template"}
if !hc.EnableHooks {
args = append(args, "--no-hooks")
}
namespace := hc.Namespace
args = append(args, "--include-crds", "--values", valuesPath, "--namespace", namespace, "--kubeconfig", "/dev/null", "--version", chart.Version, chart.Release, cachedChartPath)
helmOut, err := util.RunCmd(ctx, "helm", args...)
if err != nil {
stderr := helmOut.Stderr.String()
lines := strings.Split(stderr, "\n")
for _, line := range lines {
if strings.HasPrefix(line, "Error:") {
err = fmt.Errorf("%s: %w", line, err)
}
}
return errors.Wrap(fmt.Errorf("could not run helm template: %w", err))
}
r.accumulatedOutput = helmOut.Stdout.String()
return nil
}
// cacheChart stores a cached copy of Chart in the chart subdirectory of path.
//
// It is assumed that the only method responsible for writing to chartDir is
// cacheChart itself.
//
// This relies on the atomicity of moving temporary directories into place on
// the same filesystem via os.Rename. If a syscall.EEXIST error occurs during
// renaming, it indicates that the cached chart already exists, which is an
// expected scenario when this function is called concurrently.
func cacheChart(ctx context.Context, path holos.InstancePath, chartDir string, chart Chart) error {
log := logger.FromContext(ctx)
cacheTemp, err := os.MkdirTemp(string(path), chartDir)
if err != nil {
return errors.Wrap(fmt.Errorf("could not make temp dir: %w", err))
}
defer util.Remove(ctx, cacheTemp)
chartName := chart.Name
if chart.Repository.Name != "" {
chartName = fmt.Sprintf("%s/%s", chart.Repository.Name, chart.Name)
}
helmOut, err := util.RunCmd(ctx, "helm", "pull", "--destination", cacheTemp, "--untar=true", "--version", chart.Version, chartName)
if err != nil {
return errors.Wrap(fmt.Errorf("could not run helm pull: %w", err))
}
log.Debug("helm pull", "stdout", helmOut.Stdout, "stderr", helmOut.Stderr)
cachePath := filepath.Join(string(path), chartDir)
if err := os.MkdirAll(cachePath, 0777); err != nil {
return errors.Wrap(fmt.Errorf("could not mkdir: %w", err))
}
items, err := os.ReadDir(cacheTemp)
if err != nil {
return errors.Wrap(fmt.Errorf("could not read directory: %w", err))
}
for _, item := range items {
src := filepath.Join(cacheTemp, item.Name())
dst := filepath.Join(cachePath, item.Name())
log.DebugContext(ctx, "rename", "src", src, "dst", dst)
if err := os.Rename(src, dst); err != nil {
var linkErr *os.LinkError
if errors.As(err, &linkErr) && errors.Is(linkErr.Err, syscall.EEXIST) {
log.DebugContext(ctx, "cache already exists", "chart", chart.Name, "chart_version", chart.Version, "path", cachePath)
} else {
return errors.Wrap(fmt.Errorf("could not rename: %w", err))
}
}
}
log.InfoContext(ctx, "cached", "chart", chart.Name, "chart_version", chart.Version, "path", cachePath)
return nil
}
func isNotExist(path string) bool {
_, err := os.Stat(path)
return os.IsNotExist(err)
}

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package v1alpha1
import (
"context"
"github.com/holos-run/holos"
)
const KubernetesObjectsKind = "KubernetesObjects"
// KubernetesObjects represents CUE output which directly provides Kubernetes api objects to holos.
type KubernetesObjects struct {
HolosComponent `json:",inline" yaml:",inline"`
}
// Render produces kubernetes api objects from the APIObjectMap
func (o *KubernetesObjects) Render(ctx context.Context, path holos.InstancePath) (*Result, error) {
result := Result{HolosComponent: o.HolosComponent}
result.addObjectMap(ctx, o.APIObjectMap)
return &result, nil
}

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package v1alpha1
// Kustomization holds the rendered flux kustomization api object content for git ops.
type Kustomization struct {
// KsContent is the yaml representation of the flux kustomization for gitops.
KsContent string `json:"ksContent,omitempty" yaml:"ksContent,omitempty"`
}

47
api/v1alpha1/kustomize.go Normal file
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package v1alpha1
import (
"context"
"github.com/holos-run/holos"
"github.com/holos-run/holos/internal/errors"
"github.com/holos-run/holos/internal/logger"
"github.com/holos-run/holos/internal/util"
)
const KustomizeBuildKind = "KustomizeBuild"
// Kustomize represents resources necessary to execute a kustomize build.
// Intended for at least two use cases:
//
// 1. Process raw yaml file resources in a holos component directory.
// 2. Post process a HelmChart to inject istio, add custom labels, etc...
type Kustomize struct {
// KustomizeFiles holds file contents for kustomize, e.g. patch files.
KustomizeFiles FileContentMap `json:"kustomizeFiles,omitempty" yaml:"kustomizeFiles,omitempty"`
// ResourcesFile is the file name used for api objects in kustomization.yaml
ResourcesFile string `json:"resourcesFile,omitempty" yaml:"resourcesFile,omitempty"`
}
// KustomizeBuild renders plain yaml files in the holos component directory using kubectl kustomize build.
type KustomizeBuild struct {
HolosComponent `json:",inline" yaml:",inline"`
}
// Render produces a Result by executing kubectl kustomize on the holos
// component path. Useful for processing raw yaml files.
func (kb *KustomizeBuild) Render(ctx context.Context, path holos.InstancePath) (*Result, error) {
log := logger.FromContext(ctx)
result := Result{HolosComponent: kb.HolosComponent}
// Run kustomize.
kOut, err := util.RunCmd(ctx, "kubectl", "kustomize", string(path))
if err != nil {
log.ErrorContext(ctx, kOut.Stderr.String())
return nil, errors.Wrap(err)
}
// Replace the accumulated output
result.accumulatedOutput = kOut.Stdout.String()
// Add CUE based api objects.
result.addObjectMap(ctx, kb.APIObjectMap)
return &result, nil
}

14
api/v1alpha1/objectmap.go Normal file
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package v1alpha1
// Label is an arbitrary unique identifier. Defined as a type for clarity and type checking.
type Label string
// Kind is a kubernetes api object kind. Defined as a type for clarity and type checking.
type Kind string
// APIObjectMap is the shape of marshalled api objects returned from cue to the
// holos cli. A map is used to improve the clarity of error messages from cue.
type APIObjectMap map[Kind]map[Label]string
// FileContentMap is a map of file names to file contents.
type FileContentMap map[string]string

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package v1alpha1
// ObjectMeta represents metadata of a holos component object. The fields are a
// copy of upstream kubernetes api machinery but are by holos objects distinct
// from kubernetes api objects.
type ObjectMeta struct {
// Name uniquely identifies the holos component instance and must be suitable as a file name.
Name string `json:"name,omitempty" yaml:"name,omitempty"`
// Namespace confines a holos component to a single namespace via kustomize if set.
Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
// Labels are not used but are copied from api machinery ObjectMeta for completeness.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations are not used but are copied from api machinery ObjectMeta for completeness.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}

32
api/v1alpha1/platform.go Normal file
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package v1alpha1
import "google.golang.org/protobuf/types/known/structpb"
// Platform represents a platform to manage. A Platform resource informs holos
// which components to build. The platform resource also acts as a container
// for the platform model form values provided by the PlatformService. The
// primary use case is to collect the cluster names, cluster types, platform
// model, and holos components to build into one resource.
type Platform struct {
TypeMeta `json:",inline" yaml:",inline"`
Metadata ObjectMeta `json:"metadata" yaml:"metadata"`
Spec PlatformSpec `json:"spec" yaml:"spec"`
}
// PlatformSpec represents the platform build plan specification.
type PlatformSpec struct {
// Model represents the platform model holos gets from from the
// holos.platform.v1alpha1.PlatformService.GetPlatform method and provides to
// CUE using a tag.
Model structpb.Struct `json:"model" yaml:"model"`
Components []PlatformSpecComponent `json:"components" yaml:"components"`
}
// PlatformSpecComponent represents a component to build or render with flags to
// pass, for example the cluster name.
type PlatformSpecComponent struct {
// Path is the path of the component relative to the platform root.
Path string `json:"path" yaml:"path"`
// Cluster is the cluster name to use when building the component.
Cluster string `json:"cluster" yaml:"cluster"`
}

22
api/v1alpha1/render.go Normal file
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package v1alpha1
import (
"context"
"github.com/holos-run/holos"
)
type Renderer interface {
GetKind() string
Render(ctx context.Context, path holos.InstancePath) (*Result, error)
}
// Render produces a Result representing the kubernetes api objects to
// configure. Each of the various holos component types, e.g. Helm, Kustomize,
// et al, should implement the Renderer interface. This process is best
// conceptualized as a data pipeline, for example a component may render a
// result by first calling helm template, then passing the result through
// kustomize, then mixing in overlay api objects.
func Render(ctx context.Context, r Renderer, path holos.InstancePath) (*Result, error) {
return r.Render(ctx, path)
}

165
api/v1alpha1/result.go Normal file
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package v1alpha1
import (
"context"
"fmt"
"os"
"path/filepath"
"slices"
"github.com/holos-run/holos/internal/errors"
"github.com/holos-run/holos/internal/logger"
"github.com/holos-run/holos/internal/util"
)
// Result is the build result for display or writing. Holos components Render the Result as a data pipeline.
type Result struct {
HolosComponent
// accumulatedOutput accumulates rendered api objects.
accumulatedOutput string
// DeployFiles keys represent file paths relative to the cluster deploy
// directory. Map values represent the string encoded file contents. Used to
// write the argocd Application, but may be used to render any file from CUE.
DeployFiles FileContentMap `json:"deployFiles,omitempty" yaml:"deployFiles,omitempty"`
}
// Continue returns true if Skip is true indicating the result is to be skipped over.
func (r *Result) Continue() bool {
if r == nil {
return false
}
return r.Skip
}
func (r *Result) Name() string {
return r.Metadata.Name
}
func (r *Result) Filename(writeTo string, cluster string) string {
name := r.Metadata.Name
return filepath.Join(writeTo, "clusters", cluster, "components", name, name+".gen.yaml")
}
func (r *Result) KustomizationFilename(writeTo string, cluster string) string {
return filepath.Join(writeTo, "clusters", cluster, "holos", "components", r.Metadata.Name+"-kustomization.gen.yaml")
}
// AccumulatedOutput returns the accumulated rendered output.
func (r *Result) AccumulatedOutput() string {
return r.accumulatedOutput
}
// addObjectMap renders the provided APIObjectMap into the accumulated output.
func (r *Result) addObjectMap(ctx context.Context, objectMap APIObjectMap) {
log := logger.FromContext(ctx)
b := []byte(r.AccumulatedOutput())
kinds := make([]Kind, 0, len(objectMap))
// Sort the keys
for kind := range objectMap {
kinds = append(kinds, kind)
}
slices.Sort(kinds)
for _, kind := range kinds {
v := objectMap[kind]
// Sort the keys
names := make([]Label, 0, len(v))
for name := range v {
names = append(names, name)
}
slices.Sort(names)
for _, name := range names {
yamlString := v[name]
log.Debug(fmt.Sprintf("%s/%s", kind, name), "kind", kind, "name", name)
b = util.EnsureNewline(b)
header := fmt.Sprintf("---\n# Source: CUE apiObjects.%s.%s\n", kind, name)
b = append(b, []byte(header+yamlString)...)
b = util.EnsureNewline(b)
}
}
r.accumulatedOutput = string(b)
}
// kustomize replaces the accumulated output with the output of kustomize build
func (r *Result) kustomize(ctx context.Context) error {
log := logger.FromContext(ctx)
if r.ResourcesFile == "" {
log.DebugContext(ctx, "skipping kustomize: no resourcesFile")
return nil
}
if len(r.KustomizeFiles) < 1 {
log.DebugContext(ctx, "skipping kustomize: no kustomizeFiles")
return nil
}
tempDir, err := os.MkdirTemp("", "holos.kustomize")
if err != nil {
return errors.Wrap(err)
}
defer util.Remove(ctx, tempDir)
// Write the main api object resources file for kustomize.
target := filepath.Join(tempDir, r.ResourcesFile)
b := []byte(r.AccumulatedOutput())
b = util.EnsureNewline(b)
if err := os.WriteFile(target, b, 0644); err != nil {
return errors.Wrap(fmt.Errorf("could not write resources: %w", err))
}
log.DebugContext(ctx, "wrote: "+target, "op", "write", "path", target, "bytes", len(b))
// Write the kustomization tree, kustomization.yaml must be in this map for kustomize to work.
for file, content := range r.KustomizeFiles {
target := filepath.Join(tempDir, file)
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
return errors.Wrap(err)
}
b := []byte(content)
b = util.EnsureNewline(b)
if err := os.WriteFile(target, b, 0644); err != nil {
return errors.Wrap(fmt.Errorf("could not write: %w", err))
}
log.DebugContext(ctx, "wrote: "+target, "op", "write", "path", target, "bytes", len(b))
}
// Run kustomize.
kOut, err := util.RunCmd(ctx, "kubectl", "kustomize", tempDir)
if err != nil {
log.ErrorContext(ctx, kOut.Stderr.String())
return errors.Wrap(err)
}
// Replace the accumulated output
r.accumulatedOutput = kOut.Stdout.String()
return nil
}
func (r *Result) WriteDeployFiles(ctx context.Context, path string) error {
log := logger.FromContext(ctx)
if len(r.DeployFiles) == 0 {
return nil
}
for k, content := range r.DeployFiles {
path := filepath.Join(path, k)
if err := r.Save(ctx, path, content); err != nil {
return errors.Wrap(err)
}
log.InfoContext(ctx, "wrote deploy file", "path", path, "bytes", len(content))
}
return nil
}
// Save writes the content to the filesystem for git ops.
func (r *Result) Save(ctx context.Context, path string, content string) error {
log := logger.FromContext(ctx)
dir := filepath.Dir(path)
if err := os.MkdirAll(dir, os.FileMode(0775)); err != nil {
log.WarnContext(ctx, "could not mkdir", "path", dir, "err", err)
return errors.Wrap(err)
}
// Write the file content
if err := os.WriteFile(path, []byte(content), os.FileMode(0644)); err != nil {
log.WarnContext(ctx, "could not write", "path", path, "err", err)
return errors.Wrap(err)
}
log.DebugContext(ctx, "out: wrote "+path, "action", "write", "path", path, "status", "ok")
return nil
}

20
api/v1alpha1/typemeta.go Normal file
View File

@@ -0,0 +1,20 @@
package v1alpha1
type TypeMeta struct {
Kind string `json:"kind,omitempty" yaml:"kind,omitempty"`
APIVersion string `json:"apiVersion,omitempty" yaml:"apiVersion,omitempty"`
}
func (tm *TypeMeta) GetKind() string {
return tm.Kind
}
func (tm *TypeMeta) GetAPIVersion() string {
return tm.APIVersion
}
// Discriminator is an interface to discriminate the kind api object.
type Discriminator interface {
GetKind() string
GetAPIVersion() string
}

20
buf.gen.yaml Normal file
View File

@@ -0,0 +1,20 @@
# Generates gRPC and ConnectRPC bindings for Go and TypeScript
#
# Note: protoc-gen-connect-query is the primary method of wiring up the React
# frontend.
version: v1
plugins:
- plugin: go
out: service/gen
opt: paths=source_relative
- plugin: connect-go
out: service/gen
opt: paths=source_relative
- plugin: es
out: internal/frontend/holos/src/app/gen
opt:
- target=ts
- plugin: connect-es
out: internal/frontend/holos/src/app/gen
opt:
- target=ts

8
buf.lock Normal file
View File

@@ -0,0 +1,8 @@
# Generated by buf. DO NOT EDIT.
version: v1
deps:
- remote: buf.build
owner: bufbuild
repository: protovalidate
commit: b983156c5e994cc9892e0ce3e64e17e0
digest: shake256:fb47a62989d38c2529bcc5cd86ded43d800eb84cee82b42b9e8a9e815d4ee8134a0fb9d0ce8299b27c2d2bbb7d6ade0c4ad5a8a4d467e1e2c7ca619ae9f634e2

3
buf.work.yaml Normal file
View File

@@ -0,0 +1,3 @@
version: v1
directories:
- service

View File

@@ -1,34 +0,0 @@
package cmd
import (
"context"
"fmt"
"log/slog"
"os"
"github.com/holos-run/holos/internal/cli"
"github.com/holos-run/holos/internal/holos"
"github.com/holos-run/holos/version"
)
// MakeMain makes a main function for the cli or tests.
func MakeMain(options ...holos.Option) func() int {
return func() (exitCode int) {
// TODO(jjm): check HOLOS_CHDIR and chdir if set for tests.
if len(os.Args) >= 2 && os.Args[1] == "version" {
if _, err := fmt.Println(version.GetVersion()); err != nil {
panic(err)
}
return 0
}
cfg := holos.New(options...)
slog.SetDefault(cfg.Logger())
ctx := context.Background()
cmd := cli.New(cfg)
if err := cmd.ExecuteContext(ctx); err != nil {
return cli.HandleError(ctx, err, cfg)
}
return 0
}
}

View File

@@ -3,9 +3,9 @@ package main
import (
"os"
"github.com/holos-run/holos/cmd"
"github.com/holos-run/holos/internal/cli"
)
func main() {
os.Exit(cmd.MakeMain()())
os.Exit(cli.MakeMain()())
}

View File

@@ -2,51 +2,20 @@ package main
import (
"os"
"path/filepath"
"testing"
cue "cuelang.org/go/cmd/cue/cmd"
"github.com/holos-run/holos/cmd"
"github.com/holos-run/holos/internal/cli"
"github.com/rogpeppe/go-internal/testscript"
)
func TestMain(m *testing.M) {
holosMain := cmd.MakeMain()
testscript.Main(m, map[string]func(){
"holos": func() { os.Exit(holosMain()) },
"cue": func() { os.Exit(cue.Main()) },
os.Exit(testscript.RunMain(m, map[string]func() int{
"holos": cli.MakeMain(),
}))
}
func TestGetSecrets(t *testing.T) {
testscript.Run(t, testscript.Params{
Dir: "testdata",
})
}
func TestGuides_v1alpha5(t *testing.T) {
testscript.Run(t, params(filepath.Join("v1alpha5", "guides")))
}
func TestSchemas_v1alpha5(t *testing.T) {
testscript.Run(t, params(filepath.Join("v1alpha5", "schemas")))
}
func TestIssues_v1alpha5(t *testing.T) {
testscript.Run(t, params(filepath.Join("v1alpha5", "issues")))
}
func TestCLI(t *testing.T) {
testscript.Run(t, params("cli"))
}
func params(dir string) testscript.Params {
return testscript.Params{
Dir: filepath.Join("tests", dir),
RequireExplicitExec: true,
RequireUniqueNames: os.Getenv("HOLOS_WORKDIR_ROOT") == "",
WorkdirRoot: os.Getenv("HOLOS_WORKDIR_ROOT"),
UpdateScripts: os.Getenv("HOLOS_UPDATE_SCRIPTS") != "",
Setup: func(env *testscript.Env) error {
// Just like cmd/cue/cmd.TestScript, set up separate cache and config dirs per test.
env.Setenv("CUE_CACHE_DIR", filepath.Join(env.WorkDir, "tmp/cachedir"))
configDir := filepath.Join(env.WorkDir, "tmp/configdir")
env.Setenv("CUE_CONFIG_DIR", configDir)
return nil
},
}
}

34
cmd/holos/testdata/constraints.txt vendored Normal file
View File

@@ -0,0 +1,34 @@
# Want support for intermediary constraints
exec holos build ./foo/... --log-level debug
stdout '^bf2bc7f9-9ba0-4f9e-9bd2-9a205627eb0b$'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- foo/constraints.cue --
package holos
metadata: name: "jeff"
-- foo/bar/bar.cue --
package holos
spec: components: KubernetesObjectsList: [
#KubernetesObjects & {
apiObjectMap: foo: bar: "bf2bc7f9-9ba0-4f9e-9bd2-9a205627eb0b"
}
]
-- schema.cue --
package holos
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
#KubernetesObjects: {
apiVersion: "holos.run/v1alpha1"
kind: "KubernetesObjects"
apiObjectMap: {...}
}
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"

View File

@@ -0,0 +1,20 @@
# Want cue errors to show files and lines
! exec holos build .
stderr 'apiObjectMap.foo.bar: cannot convert incomplete value'
stderr '/component.cue:\d+:\d+$'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: KubernetesObjectsList: [{apiObjectMap: foo: bar: _baz}]
_baz: string

View File

@@ -0,0 +1,61 @@
# Want kube api objects in the apiObjects output.
exec holos build .
stdout '^kind: SecretStore$'
stdout '# Source: CUE apiObjects.SecretStore.default'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: KubernetesObjectsList: [{apiObjectMap: #APIObjects.apiObjectMap}]
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
#SecretStore: {
kind: string
metadata: name: string
}
#APIObjects: {
apiObjects: {
SecretStore: {
default: #SecretStore & { metadata: name: "default" }
}
}
}
-- schema.cue --
package holos
// #APIObjects is the output type for api objects produced by cue. A map is used to aid debugging and clarity.
import "encoding/yaml"
#APIObjects: {
// apiObjects holds each the api objects produced by cue.
apiObjects: {
[Kind=_]: {
[Name=_]: {
kind: Kind
metadata: name: Name
}
}
}
// apiObjectsContent holds the marshalled representation of apiObjects
apiObjectMap: {
for kind, v in apiObjects {
"\(kind)": {
for name, obj in v {
"\(name)": yaml.Marshal(obj)
}
}
}
}
}

View File

@@ -0,0 +1,62 @@
# Want kube api objects in the apiObjects output.
exec holos build .
stdout '^kind: SecretStore$'
stdout '# Source: CUE apiObjects.SecretStore.default'
stderr 'skipping helm: no chart name specified'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: HelmChartList: [{apiObjectMap: #APIObjects.apiObjectMap}]
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
#SecretStore: {
kind: string
metadata: name: string
}
#APIObjects: {
apiObjects: {
SecretStore: {
default: #SecretStore & { metadata: name: "default" }
}
}
}
-- schema.cue --
package holos
// #APIObjects is the output type for api objects produced by cue. A map is used to aid debugging and clarity.
import "encoding/yaml"
#APIObjects: {
// apiObjects holds each the api objects produced by cue.
apiObjects: {
[Kind=_]: {
[Name=_]: {
kind: Kind
metadata: name: Name
}
}
}
// apiObjectsContent holds the marshalled representation of apiObjects
apiObjectMap: {
for kind, v in apiObjects {
"\(kind)": {
for name, obj in v {
"\(name)": yaml.Marshal(obj)
}
}
}
}
}

View File

@@ -0,0 +1,25 @@
# Want api object kind and name in errors
! exec holos build .
stderr 'apiObjects.secretstore.default.foo: field not allowed'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
apiVersion: "holos.run/v1alpha1"
kind: "KubernetesObjects"
cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
#SecretStore: {
metadata: name: string
}
apiObjects: {
secretstore: {
default: #SecretStore & { foo: "not allowed" }
}
}

View File

@@ -0,0 +1,289 @@
# Want helm errors to show up
! exec holos build .
stderr 'Error: execution error at \(zitadel/templates/secret_zitadel-masterkey.yaml:2:4\): Either set .Values.zitadel.masterkey xor .Values.zitadel.masterkeySecretName'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- zitadel.cue --
package holos
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: HelmChartList: [_HelmChart]
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
_HelmChart: {
apiVersion: "holos.run/v1alpha1"
kind: "HelmChart"
metadata: name: "zitadel"
namespace: "zitadel"
chart: {
name: "zitadel"
version: "7.9.0"
release: name
repository: {
name: "zitadel"
url: "https://charts.zitadel.com"
}
}
}
-- vendor/zitadel/templates/secret_zitadel-masterkey.yaml --
{{- if (or (and .Values.zitadel.masterkey .Values.zitadel.masterkeySecretName) (and (not .Values.zitadel.masterkey) (not .Values.zitadel.masterkeySecretName)) ) }}
{{- fail "Either set .Values.zitadel.masterkey xor .Values.zitadel.masterkeySecretName" }}
{{- end }}
{{- if .Values.zitadel.masterkey -}}
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: zitadel-masterkey
{{- with .Values.zitadel.masterkeyAnnotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
labels:
{{- include "zitadel.labels" . | nindent 4 }}
stringData:
masterkey: {{ .Values.zitadel.masterkey }}
{{- end -}}
-- vendor/zitadel/Chart.yaml --
apiVersion: v2
appVersion: v2.46.0
description: A Helm chart for ZITADEL
icon: https://zitadel.com/zitadel-logo-dark.svg
kubeVersion: '>= 1.21.0-0'
maintainers:
- email: support@zitadel.com
name: zitadel
url: https://zitadel.com
name: zitadel
type: application
version: 7.9.0
-- vendor/zitadel/values.yaml --
# Default values for zitadel.
zitadel:
# The ZITADEL config under configmapConfig is written to a Kubernetes ConfigMap
# See all defaults here:
# https://github.com/zitadel/zitadel/blob/main/cmd/defaults.yaml
configmapConfig:
ExternalSecure: true
Machine:
Identification:
Hostname:
Enabled: true
Webhook:
Enabled: false
# The ZITADEL config under secretConfig is written to a Kubernetes Secret
# See all defaults here:
# https://github.com/zitadel/zitadel/blob/main/cmd/defaults.yaml
secretConfig:
# Annotations set on secretConfig secret
secretConfigAnnotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "0"
# Reference the name of a secret that contains ZITADEL configuration.
configSecretName:
# The key under which the ZITADEL configuration is located in the secret.
configSecretKey: config-yaml
# ZITADEL uses the masterkey for symmetric encryption.
# You can generate it for example with tr -dc A-Za-z0-9 </dev/urandom | head -c 32
masterkey: ""
# Reference the name of the secret that contains the masterkey. The key should be named "masterkey".
# Note: Either zitadel.masterkey or zitadel.masterkeySecretName must be set
masterkeySecretName: ""
# Annotations set on masterkey secret
masterkeyAnnotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "0"
# The CA Certificate needed for establishing secure database connections
dbSslCaCrt: ""
# The Secret containing the CA certificate at key ca.crt needed for establishing secure database connections
dbSslCaCrtSecret: ""
# The db admins secret containing the client certificate and key at tls.crt and tls.key needed for establishing secure database connections
dbSslAdminCrtSecret: ""
# The db users secret containing the client certificate and key at tls.crt and tls.key needed for establishing secure database connections
dbSslUserCrtSecret: ""
# Generate a self-signed certificate using an init container
# This will also mount the generated files to /etc/tls/ so that you can reference them in the pod.
# E.G. KeyPath: /etc/tls/tls.key CertPath: /etc/tls/tls.crt
# By default, the SAN DNS names include, localhost, the POD IP address and the POD name. You may include one more by using additionalDnsName like "my.zitadel.fqdn".
selfSignedCert:
enabled: false
additionalDnsName:
replicaCount: 3
image:
repository: ghcr.io/zitadel/zitadel
pullPolicy: IfNotPresent
# Overrides the image tag whose default is the chart appVersion.
tag: ""
chownImage:
repository: alpine
pullPolicy: IfNotPresent
tag: "3.19"
imagePullSecrets: []
nameOverride: ""
fullnameOverride: ""
# Annotations to add to the deployment
annotations: {}
# Annotations to add to the configMap
configMap:
annotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "0"
serviceAccount:
# Specifies whether a service account should be created
create: true
# Annotations to add to the service account
annotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "0"
# The name of the service account to use.
# If not set and create is true, a name is generated using the fullname template
name: ""
podAnnotations: {}
podAdditionalLabels: {}
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
securityContext: {}
# Additional environment variables
env:
[]
# - name: ZITADEL_DATABASE_POSTGRES_HOST
# valueFrom:
# secretKeyRef:
# name: postgres-pguser-postgres
# key: host
service:
type: ClusterIP
# If service type is "ClusterIP", this can optionally be set to a fixed IP address.
clusterIP: ""
port: 8080
protocol: http2
annotations: {}
scheme: HTTP
ingress:
enabled: false
className: ""
annotations: {}
hosts:
- host: localhost
paths:
- path: /
pathType: Prefix
tls: []
resources: {}
nodeSelector: {}
tolerations: []
affinity: {}
topologySpreadConstraints: []
initJob:
# Once ZITADEL is installed, the initJob can be disabled.
enabled: true
annotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "1"
resources: {}
backoffLimit: 5
activeDeadlineSeconds: 300
extraContainers: []
podAnnotations: {}
# Available init commands :
# "": initialize ZITADEL instance (without skip anything)
# database: initialize only the database
# grant: set ALL grant to user
# user: initialize only the database user
# zitadel: initialize ZITADEL internals (skip "create user" and "create database")
command: ""
setupJob:
annotations:
helm.sh/hook: pre-install,pre-upgrade
helm.sh/hook-delete-policy: before-hook-creation
helm.sh/hook-weight: "2"
resources: {}
activeDeadlineSeconds: 300
extraContainers: []
podAnnotations: {}
additionalArgs:
- "--init-projections=true"
machinekeyWriter:
image:
repository: bitnami/kubectl
tag: ""
resources: {}
readinessProbe:
enabled: true
initialDelaySeconds: 0
periodSeconds: 5
failureThreshold: 3
livenessProbe:
enabled: true
initialDelaySeconds: 0
periodSeconds: 5
failureThreshold: 3
startupProbe:
enabled: true
periodSeconds: 1
failureThreshold: 30
metrics:
enabled: false
serviceMonitor:
# If true, the chart creates a ServiceMonitor that is compatible with Prometheus Operator
# https://github.com/prometheus-operator/prometheus-operator/blob/main/Documentation/api.md#monitoring.coreos.com/v1.ServiceMonitor.
# The Prometheus community Helm chart installs this operator
# https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack#kube-prometheus-stack
enabled: false
honorLabels: false
honorTimestamps: true
pdb:
enabled: false
# these values are used for the PDB and are mutally exclusive
minAvailable: 1
# maxUnavailable: 1
annotations: {}

View File

@@ -0,0 +1,39 @@
# Kustomize is a supported holos component kind
exec holos render component --cluster-name=mycluster . --log-level=debug
# Want generated output
cmp want.yaml deploy/clusters/mycluster/components/kstest/kstest.gen.yaml
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: KustomizeBuildList: [{metadata: name: "kstest"}]
-- kustomization.yaml --
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: mynamespace
resources:
- serviceaccount.yaml
-- serviceaccount.yaml --
apiVersion: v1
kind: ServiceAccount
metadata:
name: test
-- want.yaml --
apiVersion: v1
kind: ServiceAccount
metadata:
name: test
namespace: mynamespace

View File

@@ -0,0 +1,17 @@
# https://github.com/holos-run/holos/issues/72
# Want holos to fail on unknown fields to catch typos and aid refactors
! exec holos build .
stderr 'unknown field \\"TypoKubernetesObjectsList\\"'
-- platform.config.json --
{}
-- cue.mod --
package holos
-- component.cue --
package holos
_cluster: string @tag(cluster, string)
_platform_config: string @tag(platform_config, string)
apiVersion: "holos.run/v1alpha1"
kind: "BuildPlan"
spec: components: TypoKubernetesObjectsList: []

View File

@@ -1,12 +0,0 @@
# https://github.com/holos-run/holos/issues/358
# holos cue vet should fail verifications with exit code 1
! exec holos cue vet ./policy --path strings.ToLower(kind) ./data/secret.yaml
# holos cue vet should report validation errors to stderr
stderr 'Forbidden. Use an ExternalSecret instead.'
-- data/secret.yaml --
kind: Secret
-- policy/validators.cue --
package policy
secret: kind: "Forbidden. Use an ExternalSecret instead."

View File

@@ -1,7 +0,0 @@
# https://github.com/holos-run/holos/issues/334
exec holos
stdout Usage
exec holos --version
stdout \d+\.\d+\.\d+
exec holos version
stdout \d+\.\d+\.\d+

File diff suppressed because it is too large Load Diff

View File

@@ -1,65 +0,0 @@
# https://github.com/holos-run/holos/issues/348
# when the optional kustomize patch name field is omitted
exec holos init platform v1alpha5 --force
# want a buildplan shown
exec holos show buildplans
cp stdout buildplan-output.yaml
exec holos compare yaml buildplan-output.yaml buildplan.yaml
# want this error to go away
! stderr 'cannot convert non-concrete value string'
-- platform/example.cue --
package holos
Platform: Components: example: {
name: "example"
path: "components/example"
}
-- components/example/example.cue --
package holos
import "encoding/yaml"
holos: Component.BuildPlan
Component: #Kustomize & {
KustomizeConfig: Kustomization: patches: [
{
target: kind: "CustomResourceDefinition"
patch: yaml.Marshal([{
op: "add"
path: "/metadata/annotations/example"
value: "example-value"
}])
},
]
}
-- buildplan.yaml --
kind: BuildPlan
apiVersion: v1alpha5
metadata:
name: example
spec:
artifacts:
- artifact: components/example/example.gen.yaml
generators:
- kind: Resources
output: resources.gen.yaml
transformers:
- kind: Kustomize
inputs:
- resources.gen.yaml
output: components/example/example.gen.yaml
kustomize:
kustomization:
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
patches:
- patch: |
- op: add
path: /metadata/annotations/example
value: example-value
target:
kind: CustomResourceDefinition
name: ""
resources:
- resources.gen.yaml

View File

@@ -1,52 +0,0 @@
# https://github.com/holos-run/holos/issues/366
# Build tags conditionally include CUE files.
env HOME=$WORK
exec holos init platform v1alpha5 --force
exec holos show platform
cp stdout empty.yaml
exec holos compare yaml empty.yaml want/empty.yaml
exec holos show platform -t foo
cp stdout foo.yaml
exec holos compare yaml foo.yaml want/foo.yaml
-- platform/empty.cue --
@if(foo)
package holos
Platform: Components: foo: _
-- platform/metadata.cue --
package holos
Platform: Components: [NAME=string]: {
name: NAME
path: "components/empty"
labels: "app.holos.run/name": NAME
annotations: "app.holos.run/description": "\(NAME) empty test case"
}
-- components/empty/empty.cue --
package holos
Component: #Kubernetes & {}
holos: Component.BuildPlan
-- want/empty.yaml --
kind: Platform
apiVersion: v1alpha5
metadata:
name: default
spec:
components: []
-- want/foo.yaml --
kind: Platform
apiVersion: v1alpha5
metadata:
name: default
spec:
components:
- name: foo
path: components/empty
labels:
app.holos.run/name: foo
annotations:
app.holos.run/description: foo empty test case

View File

@@ -1,147 +0,0 @@
# https://github.com/holos-run/holos/issues/330
# take care to install helm 3.17.3 otherwise kube versions may not align
exec holos init platform v1alpha5 --force
# Make sure the helm chart works with plain helm
exec helm template ./components/capabilities/vendor/0.1.0/capabilities
stdout 'name: has-foo-v1beta1'
stdout 'kubeVersion: v'
exec holos render platform ./platform
# When no capabilities are specified
exec holos compare yaml deploy/components/capabilities/capabilities.gen.yaml want/when-no-capabilities-specified.yaml
# With APIVersions specified
exec holos compare yaml deploy/components/specified/specified.gen.yaml want/with-capabilities-specified.yaml
# With KubeVersion specified
exec holos compare yaml deploy/components/kubeversion1/kubeversion1.gen.yaml want/with-kubeversion-specified.yaml
# With both APIVersions and KubeVersion specified
exec holos compare yaml deploy/components/kubeversion2/kubeversion2.gen.yaml want/with-both-specified.yaml
-- want/with-both-specified.yaml --
apiVersion: v1
kind: Service
metadata:
annotations:
kubeVersion: v1.20.0
name: has-foo-v1
spec:
ports:
- name: http
port: 80
protocol: TCP
targetPort: http
-- want/with-kubeversion-specified.yaml --
apiVersion: v1
kind: Service
metadata:
annotations:
kubeVersion: v1.20.0
name: has-foo-v1beta1
spec:
ports:
- name: http
port: 80
protocol: TCP
targetPort: http
-- want/when-no-capabilities-specified.yaml --
apiVersion: v1
kind: Service
metadata:
annotations:
kubeVersion: v1.99.0
name: has-foo-v1beta1
spec:
ports:
- name: http
port: 80
protocol: TCP
targetPort: http
-- want/with-capabilities-specified.yaml --
apiVersion: v1
kind: Service
metadata:
annotations:
kubeVersion: v1.99.0
name: has-foo-v1
spec:
ports:
- name: http
port: 80
protocol: TCP
targetPort: http
-- platform/capabilities.cue --
package holos
import "encoding/json"
Platform: Components: capabilities: {
name: "capabilities"
path: "components/capabilities"
}
Platform: Components: specified: {
name: "specified"
path: "components/capabilities"
parameters: apiVersions: json.Marshal(["foo/v1","bar/v1"])
}
Platform: Components: kubeversion1: {
name: "kubeversion1"
path: "components/capabilities"
parameters: kubeVersion: "v1.20.0"
}
Platform: Components: kubeversion2: {
name: "kubeversion2"
path: "components/capabilities"
parameters: kubeVersion: "v1.20.0"
parameters: apiVersions: json.Marshal(["foo/v1","bar/v1"])
}
-- components/capabilities/capabilities.cue --
package holos
import "encoding/json"
holos: Component.BuildPlan
Component: #Helm & {
Name: string @tag(holos_component_name, type=string)
Chart: name: "capabilities"
Chart: version: "0.1.0"
_APIVersions: string | *"[]" @tag(apiVersions, type=string)
APIVersions: json.Unmarshal(_APIVersions)
KubeVersion: string | *"v1.99.0" @tag(kubeVersion, type=string)
}
-- components/capabilities/vendor/0.1.0/capabilities/Chart.yaml --
apiVersion: v2
name: capabilities
description: A Helm chart for Kubernetes
type: application
version: 0.1.0
appVersion: "1.16.0"
-- components/capabilities/vendor/0.1.0/capabilities/templates/service.yaml --
apiVersion: v1
kind: Service
metadata:
{{- if .Capabilities.APIVersions.Has "foo/v1" }}
name: has-foo-v1
{{- else }}
name: has-foo-v1beta1
{{- end }}
annotations:
kubeVersion: {{ .Capabilities.KubeVersion }}
spec:
ports:
- port: 80
targetPort: http
protocol: TCP
name: http
-- want/helm-template.yaml --
---
# Source: capabilities/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
name: has-foo-v1beta1
annotations:
kubeVersion: v1.99.0
spec:
ports:
- port: 80
targetPort: http
protocol: TCP
name: http

View File

@@ -1,46 +0,0 @@
# author.#Kubernetes
# Start in an empty directory.
cd $WORK
# Generate the directory structure we're going to work in.
exec holos init platform v1alpha5 --force
# Platforms are empty by default.
exec holos render platform
stderr -count=1 '^rendered platform'
# When author.#Kubernetes is empty
exec holos cue export --expression holos --out=yaml ./components/empty
cp stdout empty.yaml
exec holos compare yaml empty.yaml want.txt
-- components/empty/empty.cue --
package holos
Kubernetes: #Kubernetes & {}
holos: Kubernetes.BuildPlan
-- want.txt --
kind: BuildPlan
apiVersion: v1alpha5
metadata:
name: no-name
spec:
artifacts:
- artifact: components/no-name/no-name.gen.yaml
generators:
- kind: Resources
output: resources.gen.yaml
resources: {}
transformers:
- kind: Kustomize
inputs:
- resources.gen.yaml
output: components/no-name/no-name.gen.yaml
kustomize:
kustomization:
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- resources.gen.yaml
validators: []

View File

@@ -1,37 +0,0 @@
# https://github.com/holos-run/holos/issues/357
exec holos init platform v1alpha5 --force
! exec holos render platform
stderr 'secret.kind: conflicting values "Forbidden. Use an ExternalSecret instead." and "Secret"'
-- validators.cue --
package holos
import "github.com/holos-run/holos/api/author/v1alpha5:author"
#ComponentConfig: author.#ComponentConfig & {
Validators: cue: {
kind: "Command"
command: args: ["holos", "cue", "vet", "./policy", "--path", "strings.ToLower(kind)"]
}
}
-- policy/validations.cue --
package validations
secret: kind: "Forbidden. Use an ExternalSecret instead."
-- platform/example.cue --
package holos
Platform: Components: example: {
name: "example"
path: "components/example"
}
-- components/example/secret.cue --
package holos
holos: Component.BuildPlan
Component: #Kubernetes & {
Resources: Secret: test: {
metadata: name: "test"
}
}

View File

@@ -1,10 +0,0 @@
---
slug: api
description: Schema Reference
---
import DocCardList from '@theme/DocCardList';
# Schema Reference
<DocCardList />

View File

@@ -1,189 +0,0 @@
---
title: Author Schemas
description: Standardized schemas for component authors.
sidebar_position: 200
---
<!-- Code generated by gomarkdoc. DO NOT EDIT -->
```go
import "github.com/holos-run/holos/api/author/v1alpha6"
```
Package author contains a standard set of schemas for component authors to generate common [core](<https://holos.run/docs/api/core/>) BuildPlans.
Holos values stability, flexibility, and composition. This package intentionally defines only the minimal necessary set of structures. Component authors are encouraged to define their own structures building on our example [topics](<https://holos.run/docs/topics/>).
The Holos Maintainers may add definitions to this package if the community identifies nearly all users must define the exact same structure. Otherwise, definitions should be added as a customizable example in [topics](<https://holos.run/docs/topics/>).
For example, structures representing a cluster and environment almost always need to be defined. Their definition varies from one organization to the next. Therefore, customizable definitions for a cluster and environment are best maintained in [topics](<https://holos.run/docs/topics/>), not standardized in this package.
## Index
- [type ComponentConfig](<#ComponentConfig>)
- [type Helm](<#Helm>)
- [type Kubernetes](<#Kubernetes>)
- [type Kustomize](<#Kustomize>)
- [type KustomizeConfig](<#KustomizeConfig>)
- [type NameLabel](<#NameLabel>)
- [type Platform](<#Platform>)
<a name="ComponentConfig"></a>
## type ComponentConfig {#ComponentConfig}
ComponentConfig represents the configuration common to all kinds of components for use with the holos render component command. All component kinds may be transformed with [kustomize](<https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/>) configured with the [KustomizeConfig](<#KustomizeConfig>) field.
- [Helm](<#Helm>) charts.
- [Kubernetes](<#Kubernetes>) resources generated from CUE.
- [Kustomize](<#Kustomize>) bases.
```go
type ComponentConfig struct {
// Name represents the BuildPlan metadata.name field. Used to construct the
// fully rendered manifest file path.
Name string
// Labels represent the BuildPlan metadata.labels field.
Labels map[string]string
// Annotations represent the BuildPlan metadata.annotations field.
Annotations map[string]string
// Path represents the path to the component producing the BuildPlan.
Path string
// Parameters are useful to reuse a component with various parameters.
// Injected as CUE @tag variables. Parameters with a "holos_" prefix are
// reserved for use by the Holos Authors.
Parameters map[string]string
// OutputBaseDir represents the output base directory used when assembling
// artifacts. Useful to organize components by clusters or other parameters.
// For example, holos writes resource manifests to
// {WriteTo}/{OutputBaseDir}/components/{Name}/{Name}.gen.yaml
OutputBaseDir string `cue:"string | *\"\""`
// Resources represents kubernetes resources mixed into the rendered manifest.
Resources core.Resources
// KustomizeConfig represents the kustomize configuration.
KustomizeConfig KustomizeConfig
// Validators represent checks that must pass for output to be written.
Validators map[NameLabel]core.Validator
// Artifacts represents additional artifacts to mix in. Useful for adding
// GitOps resources. Each Artifact is unified without modification into the
// BuildPlan.
Artifacts map[NameLabel]core.Artifact
}
```
<a name="Helm"></a>
## type Helm {#Helm}
Helm assembles a BuildPlan rendering a helm chart. Useful to mix in additional resources from CUE and transform the helm output with kustomize.
```go
type Helm struct {
ComponentConfig `json:",inline"`
// Chart represents a Helm chart.
Chart core.Chart
// Values represents data to marshal into a values.yaml for helm.
Values core.Values
// ValueFiles represents value files for migration from helm value
// hierarchies. Use Values instead.
ValueFiles []core.ValueFile `json:",omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `cue:"true | *false"`
// Namespace sets the helm chart namespace flag if provided.
Namespace string `json:",omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:",omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:",omitempty"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
```
<a name="Kubernetes"></a>
## type Kubernetes {#Kubernetes}
Kubernetes assembles a BuildPlan containing inline resources exported from CUE.
```go
type Kubernetes struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
```
<a name="Kustomize"></a>
## type Kustomize {#Kustomize}
Kustomize assembles a BuildPlan rendering manifests from a [kustomize](<https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/>) kustomization.
```go
type Kustomize struct {
ComponentConfig `json:",inline"`
// BuildPlan represents the derived BuildPlan produced for the holos render
// component command.
BuildPlan core.BuildPlan
}
```
<a name="KustomizeConfig"></a>
## type KustomizeConfig {#KustomizeConfig}
KustomizeConfig represents the configuration for [kustomize](<https://kubectl.docs.kubernetes.io/references/kustomize/kustomization/>) post processing. Use the Files field to mix in plain manifest files located in the component directory. Use the Resources field to mix in manifests from network urls.
```go
type KustomizeConfig struct {
// Kustomization represents the kustomization used to transform resources.
// Note the resources field is internally managed from the Files and Resources fields.
Kustomization map[string]any `json:",omitempty"`
// Files represents files to copy from the component directory for kustomization.
Files map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// Resources represents additional entries to included in the resources list.
Resources map[string]struct{ Source string } `cue:"{[NAME=_]: Source: NAME}"`
// CommonLabels represents common labels added without including selectors.
CommonLabels map[string]string
}
```
<a name="NameLabel"></a>
## type NameLabel {#NameLabel}
NameLabel represents the common use case of converting a struct to a list where the name field of each value unifies with the field name of the outer struct.
For example:
```
S: [NameLabel=string]: name: NameLabel
S: jeff: _
S: gary: _
S: nate: _
L: [for x in S {x}]
// L is [{name: "jeff"}, {name: "gary"}, {name: "nate"}]
```
```go
type NameLabel string
```
<a name="Platform"></a>
## type Platform {#Platform}
Platform assembles a core Platform in the Resource field for the holos render platform command. Use the Components field to register components with the platform.
```go
type Platform struct {
Name string `json:"name" yaml:"name" cue:"string | *\"default\""`
Components map[NameLabel]core.Component `json:"components" yaml:"components"`
Resource core.Platform `json:"resource" yaml:"resource"`
}
```
Generated by [gomarkdoc](<https://github.com/princjef/gomarkdoc>)

View File

@@ -1,621 +0,0 @@
---
title: Core Schemas
description: BuildPlan defines the holos rendering pipeline.
sidebar_position: 100
---
<!-- Code generated by gomarkdoc. DO NOT EDIT -->
```go
import "github.com/holos-run/holos/api/core/v1alpha6"
```
Package core contains schemas for a [Platform](<#Platform>) and [BuildPlan](<#BuildPlan>). Holos takes a [Platform](<#Platform>) as input, then iterates over each [Component](<#Component>) to produce a [BuildPlan](<#BuildPlan>). Holos processes the [BuildPlan](<#BuildPlan>) to produce fully rendered manifests, each an [Artifact](<#Artifact>).
## Index
- [Constants](<#constants>)
- [type Artifact](<#Artifact>)
- [type Auth](<#Auth>)
- [type AuthSource](<#AuthSource>)
- [type BuildContext](<#BuildContext>)
- [type BuildPlan](<#BuildPlan>)
- [type BuildPlanSpec](<#BuildPlanSpec>)
- [type Chart](<#Chart>)
- [type Command](<#Command>)
- [type Component](<#Component>)
- [type File](<#File>)
- [type FileContent](<#FileContent>)
- [type FileContentMap](<#FileContentMap>)
- [type FileOrDirectoryPath](<#FileOrDirectoryPath>)
- [type FilePath](<#FilePath>)
- [type Generator](<#Generator>)
- [type Helm](<#Helm>)
- [type InternalLabel](<#InternalLabel>)
- [type Join](<#Join>)
- [type Kind](<#Kind>)
- [type Kustomization](<#Kustomization>)
- [type Kustomize](<#Kustomize>)
- [type Metadata](<#Metadata>)
- [type Platform](<#Platform>)
- [type PlatformSpec](<#PlatformSpec>)
- [type Repository](<#Repository>)
- [type Resource](<#Resource>)
- [type Resources](<#Resources>)
- [type Transformer](<#Transformer>)
- [type Validator](<#Validator>)
- [type ValueFile](<#ValueFile>)
- [type Values](<#Values>)
## Constants
<a name="BuildContextTag"></a>BuildContextTag represents the cue tag holos render component uses to inject the json representation of a [BuildContext](<#BuildContext>) for use in a BuildPlan.
```go
const BuildContextTag string = "holos_build_context"
```
<a name="ComponentAnnotationsTag"></a>ComponentAnnotationsTag represents the tag holos uses to inject the json representation of [Component](<#Component>) metadata annotations from the holos render platform command to the holos render component command.
```go
const ComponentAnnotationsTag = "holos_component_annotations"
```
<a name="ComponentLabelsTag"></a>ComponentLabelsTag represents the cue tag holos uses to inject the json representation of [Component](<#Component>) metadata labels from the holos render platform command to the holos render component command.
```go
const ComponentLabelsTag string = "holos_component_labels"
```
<a name="ComponentNameTag"></a>ComponentNameTag represents the cue tag holos uses to inject a [Component](<#Component>) name from the holos render platform command to the holos render component command.
```go
const ComponentNameTag string = "holos_component_name"
```
<a name="ComponentPathTag"></a>ComponentPathTag represents the cue tag holos uses to inject a [Component](<#Component>) path relative to the cue module root from the holos render platform command to the holos render component command.
```go
const ComponentPathTag string = "holos_component_path"
```
<a name="Artifact"></a>
## type Artifact {#Artifact}
Artifact represents one fully rendered manifest produced by a [Transformer](<#Transformer>) sequence, which transforms a [Generator](<#Generator>) collection. A [BuildPlan](<#BuildPlan>) produces an [Artifact](<#Artifact>) collection.
Each Artifact produces one manifest file or directory artifact. Generator Output values are used as Transformer Inputs. The Output field of the final [Transformer](<#Transformer>) should have the same value as the Artifact field.
When there is more than one [Generator](<#Generator>) there should be at least one [Transformer](<#Transformer>) to combine outputs into one Artifact file, or the final artifact should be a directory containing the outputs of the generators. If there is a single Generator, it may directly produce the Artifact output.
An Artifact is processed concurrently with other artifacts in the same [BuildPlan](<#BuildPlan>). One Artifact must not use an output of another Artifact as an input. Each [Generator](<#Generator>) within an artifact also runs concurrently with generators of the same artifact. Each [Transformer](<#Transformer>) is executed sequentially starting after all generators have completed.
Output fields are write\-once. It is an error for multiple Generators or Transformers to produce the same Output value within the context of a [BuildPlan](<#BuildPlan>).
When directories are used as inputs or outputs, they behave similar to how \`git\` works with directories. When the output field references a directory, all files within the directory are recursively stored using their relative path as a key. Similar to git add . When the input field references an absent file, a / is appended and the resulting value is used as a prefix match against all previous task outputs.
```go
type Artifact struct {
Artifact FileOrDirectoryPath `json:"artifact,omitempty" yaml:"artifact,omitempty"`
Generators []Generator `json:"generators,omitempty" yaml:"generators,omitempty"`
Transformers []Transformer `json:"transformers,omitempty" yaml:"transformers,omitempty"`
Validators []Validator `json:"validators,omitempty" yaml:"validators,omitempty"`
Skip bool `json:"skip,omitempty" yaml:"skip,omitempty"`
}
```
<a name="Auth"></a>
## type Auth {#Auth}
Auth represents environment variable names containing auth credentials.
```go
type Auth struct {
Username AuthSource `json:"username" yaml:"username"`
Password AuthSource `json:"password" yaml:"password"`
}
```
<a name="AuthSource"></a>
## type AuthSource {#AuthSource}
AuthSource represents a source for the value of an [Auth](<#Auth>) field.
```go
type AuthSource struct {
Value string `json:"value,omitempty" yaml:"value,omitempty"`
FromEnv string `json:"fromEnv,omitempty" yaml:"fromEnv,omitempty"`
}
```
<a name="BuildContext"></a>
## type BuildContext {#BuildContext}
BuildContext represents build context values owned by the holos render component command. End users should not manage context field values. End users may reference fields from within CUE to refer to late binding concrete values defined just before holos executes a [BuildPlan](<#BuildPlan>).
Holos injects build context values by marshalling this struct to json through the holos\_build\_context cue tag.
Example usage from cue to produce a [BuildPlan](<#BuildPlan>):
```
package holos
import (
"encoding/json"
"github.com/holos-run/holos/api/core/v1alpha6:core"
)
_BuildContextJSON: string | *"{}" @tag(holos_build_context, type=string)
BuildContext: core.#BuildContext & json.Unmarshal(_BuildContextJSON)
holos: core.#BuildPlan & {
buildContext: BuildContext
"spec": {
"artifacts": [
{
artifact: "components/slice",
"transformers": [
{
"kind": "Command"
"inputs": ["resources.gen.yaml"]
"output": artifact
"command": {
"args": [
"kubectl-slice",
"-f",
"\(buildContext.tempDir)/resources.gen.yaml",
"-o",
"\(buildContext.tempDir)/\(artifact)",
]
}
}
]
}
]
}
}
```
```go
type BuildContext struct {
// TempDir represents the temporary directory managed and owned by the holos
// render component command for the execution of one BuildPlan. Multiple
// tasks in the build plan share this temporary directory and therefore should
// avoid reading and writing into the same sub-directories as one another.
TempDir string `json:"tempDir" yaml:"tempDir" cue:"string | *\"${TEMP_DIR_PLACEHOLDER}\""`
// RootDir represents the fully qualified path to the platform root directory.
// Useful to construct arguments for commands in BuildPlan tasks.
RootDir string `json:"rootDir" yaml:"rootDir" cue:"string | *\"${ROOT_DIR_PLACEHOLDER}\""`
// LeafDir represents the cleaned path to the holos component relative to the
// platform root. Useful to construct arguments for commands in BuildPlan
// tasks.
LeafDir string `json:"leafDir" yaml:"leafDir" cue:"string | *\"${LEAF_DIR_PLACEHOLDER}\""`
// HolosExecutable represents the fully qualified path to the holos
// executable. Useful to execute tools embedded as subcommands such as holos
// cue vet.
HolosExecutable string `json:"holosExecutable" yaml:"holosExecutable" cue:"string | *\"holos\""`
}
```
<a name="BuildPlan"></a>
## type BuildPlan {#BuildPlan}
BuildPlan represents an implementation of the [rendered manifest pattern](<https://akuity.io/blog/the-rendered-manifests-pattern>). Holos processes a BuildPlan to produce one or more [Artifact](<#Artifact>) output files. BuildPlan artifact files usually contain Kubernetes manifests, but they may have any content.
A BuildPlan usually produces two artifacts. One artifact contains a manifest of resources. A second artifact contains a GitOps resource to manage the first, usually an ArgoCD Application resource.
Holos uses CUE to construct a BuildPlan. Holos injects late binding values such as the build temp dir using the [BuildContext](<#BuildContext>).
```go
type BuildPlan struct {
// APIVersion represents the versioned schema of the resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"\"v1alpha6\""`
// Kind represents the type of the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"BuildPlan\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec specifies the desired state of the resource.
Spec BuildPlanSpec `json:"spec" yaml:"spec"`
// BuildContext represents values injected by holos just before evaluating a
// BuildPlan, for example the tempDir used for the build.
BuildContext BuildContext `json:"buildContext" yaml:"buildContext"`
}
```
<a name="BuildPlanSpec"></a>
## type BuildPlanSpec {#BuildPlanSpec}
BuildPlanSpec represents the specification of the [BuildPlan](<#BuildPlan>).
```go
type BuildPlanSpec struct {
// Artifacts represents the artifacts for holos to build.
Artifacts []Artifact `json:"artifacts" yaml:"artifacts"`
// Disabled causes the holos render platform command to skip the BuildPlan.
Disabled bool `json:"disabled,omitempty" yaml:"disabled,omitempty"`
}
```
<a name="Chart"></a>
## type Chart {#Chart}
Chart represents a [Helm](<#Helm>) Chart.
```go
type Chart struct {
// Name represents the chart name.
Name string `json:"name" yaml:"name"`
// Version represents the chart version.
Version string `json:"version" yaml:"version"`
// Release represents the chart release when executing helm template.
Release string `json:"release" yaml:"release"`
// Repository represents the repository to fetch the chart from.
Repository Repository `json:"repository,omitempty" yaml:"repository,omitempty"`
}
```
<a name="Command"></a>
## type Command {#Command}
Command represents a [BuildPlan](<#BuildPlan>) task implemented by executing an user defined system command. A task is defined as a [Generator](<#Generator>), [Transformer](<#Transformer>), or [Validator](<#Validator>). Commands are executed with the working directory set to the platform root.
```go
type Command struct {
// DisplayName of the command. The basename of args[0] is used if empty.
DisplayName string `json:"displayName,omitempty" yaml:"displayName,omitempty"`
// Args represents the argument vector passed to the os. to execute the
// command.
Args []string `json:"args,omitempty" yaml:"args,omitempty"`
// IsStdoutOutput captures the command stdout as the task output if true.
IsStdoutOutput bool `json:"isStdoutOutput,omitempty" yaml:"isStdoutOutput,omitempty"`
}
```
<a name="Component"></a>
## type Component {#Component}
Component represents the complete context necessary to produce a [BuildPlan](<#BuildPlan>) from a path containing parameterized CUE configuration.
```go
type Component struct {
// Name represents the name of the component. Injected as the tag variable
// "holos_component_name".
Name string `json:"name" yaml:"name"`
// Path represents the path of the component relative to the platform root.
// Injected as the tag variable "holos_component_path".
Path string `json:"path" yaml:"path"`
// Parameters represent user defined input variables to produce various
// [BuildPlan] resources from one component path. Injected as CUE @tag
// variables. Parameters with a "holos_" prefix are reserved for use by the
// Holos Authors. Multiple environments are a prime example of an input
// parameter that should always be user defined, never defined by Holos.
Parameters map[string]string `json:"parameters,omitempty" yaml:"parameters,omitempty"`
// Labels represent selector labels for the component. Holos copies Labels
// from the Component to the resulting BuildPlan.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. Use the
// `app.holos.run/description` to customize the log message of each BuildPlan.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}
```
<a name="File"></a>
## type File {#File}
File represents a simple single file copy [Generator](<#Generator>). Useful with a [Kustomize](<#Kustomize>) [Transformer](<#Transformer>) to process plain manifest files stored in the component directory. Multiple File generators may be used to transform multiple resources.
```go
type File struct {
// Source represents a file sub-path relative to the component path.
Source FilePath `json:"source" yaml:"source"`
}
```
<a name="FileContent"></a>
## type FileContent {#FileContent}
FileContent represents file contents.
```go
type FileContent string
```
<a name="FileContentMap"></a>
## type FileContentMap {#FileContentMap}
FileContentMap represents a mapping of file paths to file contents.
```go
type FileContentMap map[FilePath]FileContent
```
<a name="FileOrDirectoryPath"></a>
## type FileOrDirectoryPath {#FileOrDirectoryPath}
FileOrDirectoryPath represents a file or a directory path.
```go
type FileOrDirectoryPath string
```
<a name="FilePath"></a>
## type FilePath {#FilePath}
FilePath represents a file path.
```go
type FilePath string
```
<a name="Generator"></a>
## type Generator {#Generator}
Generator generates Kubernetes resources. [Helm](<#Helm>) and [Resources](<#Resources>) are the most commonly used, often paired together to mix\-in resources to an unmodified Helm chart. A simple [File](<#File>) generator is also available for use with the [Kustomize](<#Kustomize>) transformer.
Each Generator in an [Artifact](<#Artifact>) must have a distinct Output value for a [Transformer](<#Transformer>) to reference.
1. [Resources](<#Resources>) \- Generates resources from CUE code.
2. [Helm](<#Helm>) \- Generates rendered yaml from a [Chart](<#Chart>).
3. [File](<#File>) \- Generates data by reading a file from the component directory.
4. [Command](<#Command>) \- Generates data by executing an user defined command.
```go
type Generator struct {
// Kind represents the kind of generator. Must be Resources, Helm, or File.
Kind string `json:"kind" yaml:"kind" cue:"\"Resources\" | \"Helm\" | \"File\" | \"Command\""`
// Output represents a file for a Transformer or Artifact to consume.
Output FileOrDirectoryPath `json:"output" yaml:"output"`
// Resources generator. Ignored unless kind is Resources. Resources are
// stored as a two level struct. The top level key is the Kind of resource,
// e.g. Namespace or Deployment. The second level key is an arbitrary
// InternalLabel. The third level is a map[string]any representing the
// Resource.
Resources Resources `json:"resources,omitempty" yaml:"resources,omitempty"`
// Helm generator. Ignored unless kind is Helm.
Helm Helm `json:"helm,omitempty" yaml:"helm,omitempty"`
// File generator. Ignored unless kind is File.
File File `json:"file,omitempty" yaml:"file,omitempty"`
// Command generator. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
```
<a name="Helm"></a>
## type Helm {#Helm}
Helm represents a [Chart](<#Chart>) manifest [Generator](<#Generator>).
```go
type Helm struct {
// Chart represents a helm chart to manage.
Chart Chart `json:"chart" yaml:"chart"`
// Values represents values for holos to marshal into values.yaml when
// rendering the chart. Values follow ValueFiles when both are provided.
Values Values `json:"values" yaml:"values"`
// ValueFiles represents hierarchial value files passed in order to the helm
// template -f flag. Useful for migration from an ApplicationSet. Use Values
// instead. ValueFiles precede Values when both are provided.
ValueFiles []ValueFile `json:"valueFiles,omitempty" yaml:"valueFiles,omitempty"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `json:"enableHooks,omitempty" yaml:"enableHooks,omitempty"`
// Namespace represents the helm namespace flag
Namespace string `json:"namespace,omitempty" yaml:"namespace,omitempty"`
// APIVersions represents the helm template --api-versions flag
APIVersions []string `json:"apiVersions,omitempty" yaml:"apiVersions,omitempty"`
// KubeVersion represents the helm template --kube-version flag
KubeVersion string `json:"kubeVersion,omitempty" yaml:"kubeVersion,omitempty"`
}
```
<a name="InternalLabel"></a>
## type InternalLabel {#InternalLabel}
InternalLabel is an arbitrary unique identifier internal to holos itself. The holos cli is expected to never write a InternalLabel value to rendered output files, therefore use a InternalLabel when the identifier must be unique and internal. Defined as a type for clarity and type checking.
```go
type InternalLabel string
```
<a name="Join"></a>
## type Join {#Join}
Join represents a [Transformer](<#Transformer>) using [bytes.Join](<https://pkg.go.dev/bytes#Join>) to concatenate multiple inputs into one output with a separator. Useful for combining output from [Helm](<#Helm>) and [Resources](<#Resources>) together into one [Artifact](<#Artifact>) when [Kustomize](<#Kustomize>) is otherwise unnecessary.
```go
type Join struct {
Separator string `json:"separator,omitempty" yaml:"separator,omitempty"`
}
```
<a name="Kind"></a>
## type Kind {#Kind}
Kind is a discriminator. Defined as a type for clarity and type checking.
```go
type Kind string
```
<a name="Kustomization"></a>
## type Kustomization {#Kustomization}
Kustomization represents a kustomization.yaml file for use with the [Kustomize](<#Kustomize>) [Transformer](<#Transformer>). Untyped to avoid tightly coupling holos to kubectl versions which was a problem for the Flux maintainers. Type checking is expected to happen in CUE against the kubectl version the user prefers.
```go
type Kustomization map[string]any
```
<a name="Kustomize"></a>
## type Kustomize {#Kustomize}
Kustomize represents a kustomization [Transformer](<#Transformer>).
```go
type Kustomize struct {
// Kustomization represents the decoded kustomization.yaml file
Kustomization Kustomization `json:"kustomization" yaml:"kustomization"`
// Files holds file contents for kustomize, e.g. patch files.
Files FileContentMap `json:"files,omitempty" yaml:"files,omitempty"`
}
```
<a name="Metadata"></a>
## type Metadata {#Metadata}
Metadata represents data about the resource such as the Name.
```go
type Metadata struct {
// Name represents the resource name.
Name string `json:"name" yaml:"name"`
// Labels represents a resource selector.
Labels map[string]string `json:"labels,omitempty" yaml:"labels,omitempty"`
// Annotations represents arbitrary non-identifying metadata. For example
// holos uses the `app.holos.run/description` annotation to log resources in a
// user customized way.
Annotations map[string]string `json:"annotations,omitempty" yaml:"annotations,omitempty"`
}
```
<a name="Platform"></a>
## type Platform {#Platform}
Platform represents a platform to manage. A Platform specifies a [Component](<#Component>) collection and integrates the components together into a holistic platform. Holos iterates over the [Component](<#Component>) collection producing a [BuildPlan](<#BuildPlan>) for each, which holos then executes to render manifests.
Inspect a Platform resource holos would process by executing:
```
cue export --out yaml ./platform
```
```go
type Platform struct {
// APIVersion represents the versioned schema of this resource.
APIVersion string `json:"apiVersion" yaml:"apiVersion" cue:"string | *\"v1alpha6\""`
// Kind is a string value representing the resource.
Kind string `json:"kind" yaml:"kind" cue:"\"Platform\""`
// Metadata represents data about the resource such as the Name.
Metadata Metadata `json:"metadata" yaml:"metadata"`
// Spec represents the platform specification.
Spec PlatformSpec `json:"spec" yaml:"spec"`
}
```
<a name="PlatformSpec"></a>
## type PlatformSpec {#PlatformSpec}
PlatformSpec represents the platform specification.
```go
type PlatformSpec struct {
// Components represents a collection of holos components to manage.
Components []Component `json:"components" yaml:"components"`
}
```
<a name="Repository"></a>
## type Repository {#Repository}
Repository represents a [Helm](<#Helm>) [Chart](<#Chart>) repository.
The Auth field is useful to configure http basic authentication to the Helm repository. Holos gets the username and password from the environment variables represented by the Auth field.
```go
type Repository struct {
Name string `json:"name" yaml:"name"`
URL string `json:"url" yaml:"url"`
Auth Auth `json:"auth,omitempty" yaml:"auth,omitempty"`
}
```
<a name="Resource"></a>
## type Resource {#Resource}
Resource represents one kubernetes api object.
```go
type Resource map[string]any
```
<a name="Resources"></a>
## type Resources {#Resources}
Resources represents Kubernetes resources. Most commonly used to mix resources into the [BuildPlan](<#BuildPlan>) generated from CUE, but may be generated from elsewhere.
```go
type Resources map[Kind]map[InternalLabel]Resource
```
<a name="Transformer"></a>
## type Transformer {#Transformer}
Transformer combines multiple inputs from prior [Generator](<#Generator>) or [Transformer](<#Transformer>) outputs into one output. [Kustomize](<#Kustomize>) is the most commonly used transformer. A simple [Join](<#Join>) is also supported for use with plain manifest files.
1. [Kustomize](<#Kustomize>) \- Patch and transform the output from prior generators or transformers. See [Introduction to Kustomize](<https://kubectl.docs.kubernetes.io/guides/config_management/introduction/>).
2. [Join](<#Join>) \- Concatenate multiple prior outputs into one output.
3. [Command](<#Command>) \- Transforms data by executing an user defined command.
```go
type Transformer struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Kustomize\" | \"Join\" | \"Command\""`
// Inputs represents the files to transform. The Output of prior Generators
// and Transformers.
Inputs []FileOrDirectoryPath `json:"inputs" yaml:"inputs"`
// Output represents a file or directory for a subsequent Transformer or
// Artifact to consume.
Output FileOrDirectoryPath `json:"output" yaml:"output"`
// Kustomize transformer. Ignored unless kind is Kustomize.
Kustomize Kustomize `json:"kustomize,omitempty" yaml:"kustomize,omitempty"`
// Join transformer. Ignored unless kind is Join.
Join Join `json:"join,omitempty" yaml:"join,omitempty"`
// Command transformer. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
```
<a name="Validator"></a>
## type Validator {#Validator}
Validator validates files. Useful to validate an [Artifact](<#Artifact>) prior to writing it out to the final destination. Holos may execute validators concurrently. See the [validators](<https://holos.run/docs/v1alpha6/tutorial/validators/>) tutorial for an end to end example.
```go
type Validator struct {
// Kind represents the kind of transformer. Must be Kustomize, or Join.
Kind string `json:"kind" yaml:"kind" cue:"\"Command\""`
// Inputs represents the files to validate. Usually the final Artifact.
Inputs []FileOrDirectoryPath `json:"inputs" yaml:"inputs"`
// Command validator. Ignored unless kind is Command.
Command Command `json:"command,omitempty" yaml:"command,omitempty"`
}
```
<a name="ValueFile"></a>
## type ValueFile {#ValueFile}
ValueFile represents one Helm value file produced from CUE.
```go
type ValueFile struct {
// Name represents the file name, e.g. "region-values.yaml"
Name string `json:"name" yaml:"name"`
// Kind is a discriminator.
Kind string `json:"kind" yaml:"kind" cue:"\"Values\""`
// Values represents values for holos to marshal into the file name specified
// by Name when rendering the chart.
Values Values `json:"values,omitempty" yaml:"values,omitempty"`
}
```
<a name="Values"></a>
## type Values {#Values}
Values represents [Helm](<#Helm>) Chart values generated from CUE.
```go
type Values map[string]any
```
Generated by [gomarkdoc](<https://github.com/princjef/gomarkdoc>)

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<!-- Code generated by gomarkdoc. DO NOT EDIT -->
# v1alpha2
```go
import "github.com/holos-run/holos/api/core/v1alpha2"
```
Package v1alpha2 contains the core API contract between the holos cli and CUE configuration code. Platform designers, operators, and software developers use this API to write configuration in CUE which \`holos\` loads. The overall shape of the API defines imperative actions \`holos\` should carry out to render the complete yaml that represents a Platform.
[Platform](<#Platform>) defines the complete configuration of a platform. With the holos reference platform this takes the shape of one management cluster and at least two workload cluster. Each cluster has multiple [HolosComponent](<#HolosComponent>) resources applied to it.
Each holos component path, e.g. \`components/namespaces\` produces exactly one [BuildPlan](<#BuildPlan>) which in turn contains a set of [HolosComponent](<#HolosComponent>) kinds.
The primary kinds of [HolosComponent](<#HolosComponent>) are:
1. [HelmChart](<#HelmChart>) to render config from a helm chart.
2. [KustomizeBuild](<#KustomizeBuild>) to render config from [Kustomize](<#Kustomize>)
3. [KubernetesObjects](<#KubernetesObjects>) to render [APIObjects](<#APIObjects>) defined directly in CUE configuration.
Note that Holos operates as a data pipeline, so the output of a [HelmChart](<#HelmChart>) may be provided to [Kustomize](<#Kustomize>) for post\-processing.
## Index
- [Constants](<#constants>)
- [type APIObject](<#APIObject>)
- [type APIObjectMap](<#APIObjectMap>)
- [type APIObjects](<#APIObjects>)
- [type BuildPlan](<#BuildPlan>)
- [type BuildPlanComponents](<#BuildPlanComponents>)
- [type BuildPlanSpec](<#BuildPlanSpec>)
- [type Chart](<#Chart>)
- [type FileContent](<#FileContent>)
- [type FileContentMap](<#FileContentMap>)
- [type FilePath](<#FilePath>)
- [type HelmChart](<#HelmChart>)
- [type HolosComponent](<#HolosComponent>)
- [type Kind](<#Kind>)
- [type KubernetesObjects](<#KubernetesObjects>)
- [type Kustomize](<#Kustomize>)
- [type KustomizeBuild](<#KustomizeBuild>)
- [type Label](<#Label>)
- [type Metadata](<#Metadata>)
- [type Platform](<#Platform>)
- [type PlatformMetadata](<#PlatformMetadata>)
- [type PlatformSpec](<#PlatformSpec>)
- [type PlatformSpecComponent](<#PlatformSpecComponent>)
- [type Repository](<#Repository>)
## Constants
<a name="APIVersion"></a>
```go
const (
APIVersion = "v1alpha2"
BuildPlanKind = "BuildPlan"
HelmChartKind = "HelmChart"
// ChartDir is the directory name created in the holos component directory to cache a chart.
ChartDir = "vendor"
// ResourcesFile is the file name used to store component output when post-processing with kustomize.
ResourcesFile = "resources.yaml"
)
```
<a name="KubernetesObjectsKind"></a>
```go
const KubernetesObjectsKind = "KubernetesObjects"
```
<a name="APIObject"></a>
## type APIObject {#APIObject}
APIObject represents the most basic generic form of a single kubernetes api object. Represented as a JSON object internally for compatibility between tools, for example loading from CUE.
```go
type APIObject structpb.Struct
```
<a name="APIObjectMap"></a>
## type APIObjectMap {#APIObjectMap}
APIObjectMap represents the marshalled yaml representation of kubernetes api objects. Do not produce an APIObjectMap directly, instead use [APIObjects](<#APIObjects>) to produce the marshalled yaml representation from CUE data, then provide the result to [HolosComponent](<#HolosComponent>).
```go
type APIObjectMap map[Kind]map[Label]string
```
<a name="APIObjects"></a>
## type APIObjects {#APIObjects}
APIObjects represents Kubernetes API objects defined directly from CUE code. Useful to mix in resources to any kind of [HolosComponent](<#HolosComponent>), for example adding an ExternalSecret resource to a [HelmChart](<#HelmChart>).
[Kind](<#Kind>) must be the resource kind, e.g. Deployment or Service.
[Label](<#Label>) is an arbitrary internal identifier to uniquely identify the resource within the context of a \`holos\` command. Holos will never write the intermediate label to rendered output.
Refer to [HolosComponent](<#HolosComponent>) which accepts an [APIObjectMap](<#APIObjectMap>) field provided by [APIObjects](<#APIObjects>).
```go
type APIObjects struct {
APIObjects map[Kind]map[Label]APIObject `json:"apiObjects"`
APIObjectMap APIObjectMap `json:"apiObjectMap"`
}
```
<a name="BuildPlan"></a>
## type BuildPlan {#BuildPlan}
BuildPlan represents a build plan for the holos cli to execute. The purpose of a BuildPlan is to define one or more [HolosComponent](<#HolosComponent>) kinds. For example a [HelmChart](<#HelmChart>), [KustomizeBuild](<#KustomizeBuild>), or [KubernetesObjects](<#KubernetesObjects>).
A BuildPlan usually has an additional empty [KubernetesObjects](<#KubernetesObjects>) for the purpose of using the [HolosComponent](<#HolosComponent>) DeployFiles field to deploy an ArgoCD or Flux gitops resource for the holos component.
```go
type BuildPlan struct {
Kind string `json:"kind" cue:"\"BuildPlan\""`
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
Spec BuildPlanSpec `json:"spec"`
}
```
<a name="BuildPlanComponents"></a>
## type BuildPlanComponents {#BuildPlanComponents}
```go
type BuildPlanComponents struct {
Resources map[Label]KubernetesObjects `json:"resources,omitempty"`
KubernetesObjectsList []KubernetesObjects `json:"kubernetesObjectsList,omitempty"`
HelmChartList []HelmChart `json:"helmChartList,omitempty"`
KustomizeBuildList []KustomizeBuild `json:"kustomizeBuildList,omitempty"`
}
```
<a name="BuildPlanSpec"></a>
## type BuildPlanSpec {#BuildPlanSpec}
BuildPlanSpec represents the specification of the build plan.
```go
type BuildPlanSpec struct {
// Disabled causes the holos cli to take no action over the [BuildPlan].
Disabled bool `json:"disabled,omitempty"`
// Components represents multiple [HolosComponent] kinds to manage.
Components BuildPlanComponents `json:"components,omitempty"`
}
```
<a name="Chart"></a>
## type Chart {#Chart}
Chart represents a helm chart.
```go
type Chart struct {
// Name represents the chart name.
Name string `json:"name"`
// Version represents the chart version.
Version string `json:"version"`
// Release represents the chart release when executing helm template.
Release string `json:"release"`
// Repository represents the repository to fetch the chart from.
Repository Repository `json:"repository,omitempty"`
}
```
<a name="FileContent"></a>
## type FileContent {#FileContent}
FileContent represents file contents.
```go
type FileContent string
```
<a name="FileContentMap"></a>
## type FileContentMap {#FileContentMap}
FileContentMap represents a mapping of file paths to file contents. Paths are relative to the \`holos\` output "deploy" directory, and may contain sub\-directories.
```go
type FileContentMap map[FilePath]FileContent
```
<a name="FilePath"></a>
## type FilePath {#FilePath}
FilePath represents a file path.
```go
type FilePath string
```
<a name="HelmChart"></a>
## type HelmChart {#HelmChart}
HelmChart represents a holos component which wraps around an upstream helm chart. Holos orchestrates helm by providing values obtained from CUE, renders the output using \`helm template\`, then post\-processes the helm output yaml using the general functionality provided by [HolosComponent](<#HolosComponent>), for example [Kustomize](<#Kustomize>) post\-rendering and mixing in additional kubernetes api objects.
```go
type HelmChart struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"HelmChart\""`
// Chart represents a helm chart to manage.
Chart Chart `json:"chart"`
// ValuesContent represents the values.yaml file holos passes to the `helm
// template` command.
ValuesContent string `json:"valuesContent"`
// EnableHooks enables helm hooks when executing the `helm template` command.
EnableHooks bool `json:"enableHooks" cue:"bool | *false"`
}
```
<a name="HolosComponent"></a>
## type HolosComponent {#HolosComponent}
HolosComponent defines the fields common to all holos component kinds. Every holos component kind should embed HolosComponent.
```go
type HolosComponent struct {
// Kind is a string value representing the resource this object represents.
Kind string `json:"kind"`
// APIVersion represents the versioned schema of this representation of an object.
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
// Metadata represents data about the holos component such as the Name.
Metadata Metadata `json:"metadata"`
// APIObjectMap holds the marshalled representation of api objects. Useful to
// mix in resources to each HolosComponent type, for example adding an
// ExternalSecret to a HelmChart HolosComponent. Refer to [APIObjects].
APIObjectMap APIObjectMap `json:"apiObjectMap,omitempty"`
// DeployFiles represents file paths relative to the cluster deploy directory
// with the value representing the file content. Intended for defining the
// ArgoCD Application resource or Flux Kustomization resource from within CUE,
// but may be used to render any file related to the build plan from CUE.
DeployFiles FileContentMap `json:"deployFiles,omitempty"`
// Kustomize represents a kubectl kustomize build post-processing step.
Kustomize `json:"kustomize,omitempty"`
// Skip causes holos to take no action regarding this component.
Skip bool `json:"skip" cue:"bool | *false"`
}
```
<a name="Kind"></a>
## type Kind {#Kind}
Kind is a kubernetes api object kind. Defined as a type for clarity and type checking.
```go
type Kind string
```
<a name="KubernetesObjects"></a>
## type KubernetesObjects {#KubernetesObjects}
KubernetesObjects represents a [HolosComponent](<#HolosComponent>) composed of Kubernetes API objects provided directly from CUE using [APIObjects](<#APIObjects>).
```go
type KubernetesObjects struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"KubernetesObjects\""`
}
```
<a name="Kustomize"></a>
## type Kustomize {#Kustomize}
Kustomize represents resources necessary to execute a kustomize build. Intended for at least two use cases:
1. Process a [KustomizeBuild](<#KustomizeBuild>) [HolosComponent](<#HolosComponent>) which represents raw yaml file resources in a holos component directory.
2. Post process a [HelmChart](<#HelmChart>) [HolosComponent](<#HolosComponent>) to inject istio, patch jobs, add custom labels, etc...
```go
type Kustomize struct {
// KustomizeFiles holds file contents for kustomize, e.g. patch files.
KustomizeFiles FileContentMap `json:"kustomizeFiles,omitempty"`
// ResourcesFile is the file name used for api objects in kustomization.yaml
ResourcesFile string `json:"resourcesFile,omitempty"`
}
```
<a name="KustomizeBuild"></a>
## type KustomizeBuild {#KustomizeBuild}
KustomizeBuild represents a [HolosComponent](<#HolosComponent>) that renders plain yaml files in the holos component directory using \`kubectl kustomize build\`.
```go
type KustomizeBuild struct {
HolosComponent `json:",inline"`
Kind string `json:"kind" cue:"\"KustomizeBuild\""`
}
```
<a name="Label"></a>
## type Label {#Label}
Label is an arbitrary unique identifier internal to holos itself. The holos cli is expected to never write a Label value to rendered output files, therefore use a [Label](<#Label>) then the identifier must be unique and internal. Defined as a type for clarity and type checking.
A Label is useful to convert a CUE struct to a list, for example producing a list of [APIObject](<#APIObject>) resources from an [APIObjectMap](<#APIObjectMap>). A CUE struct using Label keys is guaranteed to not lose data when rendering output because a Label is expected to never be written to the final output.
```go
type Label string
```
<a name="Metadata"></a>
## type Metadata {#Metadata}
Metadata represents data about the holos component such as the Name.
```go
type Metadata struct {
// Name represents the name of the holos component.
Name string `json:"name"`
// Namespace is the primary namespace of the holos component. A holos
// component may manage resources in multiple namespaces, in this case
// consider setting the component namespace to default.
//
// This field is optional because not all resources require a namespace,
// particularly CRD's and DeployFiles functionality.
// +optional
Namespace string `json:"namespace,omitempty"`
}
```
<a name="Platform"></a>
## type Platform {#Platform}
Platform represents a platform to manage. A Platform resource informs holos which components to build. The platform resource also acts as a container for the platform model form values provided by the PlatformService. The primary use case is to collect the cluster names, cluster types, platform model, and holos components to build into one resource.
```go
type Platform struct {
// Kind is a string value representing the resource this object represents.
Kind string `json:"kind" cue:"\"Platform\""`
// APIVersion represents the versioned schema of this representation of an object.
APIVersion string `json:"apiVersion" cue:"string | *\"v1alpha2\""`
// Metadata represents data about the object such as the Name.
Metadata PlatformMetadata `json:"metadata"`
// Spec represents the specification.
Spec PlatformSpec `json:"spec"`
}
```
<a name="PlatformMetadata"></a>
## type PlatformMetadata {#PlatformMetadata}
```go
type PlatformMetadata struct {
// Name represents the Platform name.
Name string `json:"name"`
}
```
<a name="PlatformSpec"></a>
## type PlatformSpec {#PlatformSpec}
PlatformSpec represents the specification of a Platform. Think of a platform specification as a list of platform components to apply to a list of kubernetes clusters combined with the user\-specified Platform Model.
```go
type PlatformSpec struct {
// Model represents the platform model holos gets from from the
// PlatformService.GetPlatform rpc method and provides to CUE using a tag.
Model structpb.Struct `json:"model"`
// Components represents a list of holos components to manage.
Components []PlatformSpecComponent `json:"components"`
}
```
<a name="PlatformSpecComponent"></a>
## type PlatformSpecComponent {#PlatformSpecComponent}
PlatformSpecComponent represents a holos component to build or render.
```go
type PlatformSpecComponent struct {
// Path is the path of the component relative to the platform root.
Path string `json:"path"`
// Cluster is the cluster name to provide when rendering the component.
Cluster string `json:"cluster"`
}
```
<a name="Repository"></a>
## type Repository {#Repository}
Repository represents a helm chart repository.
```go
type Repository struct {
Name string `json:"name"`
URL string `json:"url"`
}
```
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# CLI
Use the `holos` command line interface (CLI) to render individual platform components, entire platforms, and push/pull the platform model.

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Integrate the `podinfo` component into the platform.
```bash
cat <<EOF >platform/podinfo.cue
```
```cue showLineNumbers
package holos
Platform: Components: podinfo: {
name: "podinfo"
path: "components/podinfo"
}
```
```bash
EOF
```

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Create a directory for the example `podinfo` component we'll use to render
platform manifests.
```bash
mkdir -p components/podinfo
```
Create the CUE configuration for the example `podinfo` component.
```bash
cat <<EOF >components/podinfo/podinfo.cue
```
```cue showLineNumbers
package holos
holos: Component.BuildPlan
Component: #Helm & {
Name: "podinfo"
Chart: {
version: "6.6.2"
repository: {
name: "podinfo"
url: "https://stefanprodan.github.io/podinfo"
}
}
Values: ui: {
message: string | *"Hello World" @tag(message, type=string)
}
}
```
```bash
EOF
```

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# Rendering
:::tip
This document provides a brief overview of the rendering process, a core design
element in Holos.
:::
Holos uses the Kubernetes resource model to manage configuration. The `holos`
command line interface is the primary method you'll use to manage your platform.
Holos uses CUE to provide a unified configuration model of the platform. This
unified configuration is built up from components packaged with Helm, Kustomize,
CUE, or any other tool that can produce Kubernetes resource manifests as output.
This process can be thought of as a data **rendering pipeline**. The key
concept is that `holos` will always produce fully rendered output, but delegates
the _application_ of the configuration to other tools like `kubectl apply`,
ArgoCD, or Flux.
```mermaid
---
title: Figure 2 - Render Pipeline
---
graph LR
PS[<a href="/docs/api/core/v1alpha2#PlatformSpec">PlatformSpec</a>]
BP[<a href="/docs/api/core/v1alpha2#BuildPlan">BuildPlan</a>]
HC[<a href="/docs/api/core/v1alpha2#HolosComponent">HolosComponent</a>]
H[<a href="/docs/api/core/v1alpha2#HelmChart">HelmChart</a>]
K[<a href="/docs/api/core/v1alpha2#KustomizeBuild">KustomizeBuild</a>]
O[<a href="/docs/api/core/v1alpha2#KubernetesObjects">KubernetesObjects</a>]
P[<a href="/docs/api/core/v1alpha2#Kustomize">Kustomize</a>]
Y[Kubernetes <br>Resources]
G[GitOps <br>Resource]
C[Kube API Server]
PS --> BP --> HC
HC --> H --> P
HC --> K --> P
HC --> O --> P
P --> Y --> C
P --> G --> C
```

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import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
# ArgoCD
Coming soon.

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# Backstage
Coming soon.

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# Install Holos
Holos is distributed as a single file executable.
## Releases
Download `holos` from the [releases](https://github.com/holos-run/holos/releases) page and place the executable into your shell path.
## Go install
Alternatively, install directly into your go bin path using:
```shell
go install github.com/holos-run/holos/cmd/holos@latest
```
### What you'll need
- [helm](https://github.com/helm/helm/releases) to fetch and render Helm chart components.
- [kubectl](https://kubernetes.io/docs/tasks/tools/) to [kustomize](https://kustomize.io/) components.

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# Observability
Coming soon.

17
doc/md/guides/overview.md Normal file
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# Overview
<!-- https://kubernetes.io/docs/contribute/style/diagram-guide/ -->
This tutorial covers the following process of getting started with Holos.
```mermaid
graph LR
A[1. Install <br>holos] -->
B[2. Register <br>account] -->
C[3. Generate <br>platform] -->
D[4. Render <br>platform] -->
E[5. Apply <br>config]
classDef box fill:#fff,stroke:#000,stroke-width:1px,color:#000;
class A,B,C,D,E box
```

62
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# Registration
Holos leverages a simple web app to collect and store platform attributes with a web form. Register an account with the web app to create and retrieve the platform model.
```
holos register user
```
:::tip
Holos allows you to customize all of the sections and fields of your platform model.
:::
## Generate your Platform
Generate your platform configuration from the holos reference platform embedded in the `holos` executable. Platform configuration is stored in a git repository.
```bash
mkdir holos-infra
cd holos-infra
holos generate platform holos
```
The generate command writes many files organized by platform component into the current directory
TODO: Put a table here describing key elements?
:::tip
Take a peek at `holos generate platform --help` to see other platforms embedded in the holos executable.
:::
## Push the Platform Form
```
holos push platform form .
```
## Fill in the form
TODO
## Pull the Platform Model
Once the platform model is saved, pull it into the holos-infra repository:
```
holos pull platform model .
```
## Render the Platform
With the platform model and the platform spec, you're ready to render the complete platform configuration:
```
holos render platform ./platform
```
## Summary

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