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3b833cdacd |
@@ -67,6 +67,7 @@
|
||||
"isatty",
|
||||
"istiod",
|
||||
"jbrx",
|
||||
"jeffmccune",
|
||||
"jetstack",
|
||||
"Jsonnet",
|
||||
"killall",
|
||||
@@ -149,6 +150,7 @@
|
||||
"usecases",
|
||||
"userconnect",
|
||||
"userdata",
|
||||
"userservice",
|
||||
"validatingwebhookconfiguration",
|
||||
"virtualservices",
|
||||
"wasmplugins",
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
import DocCardList from '@theme/DocCardList';
|
||||
|
||||
# Schema API
|
||||
# Author API
|
||||
|
||||
<DocCardList />
|
||||
@@ -3,7 +3,7 @@
|
||||
# v1alpha3
|
||||
|
||||
```go
|
||||
import "github.com/holos-run/holos/api/schema/v1alpha3"
|
||||
import "github.com/holos-run/holos/api/author/v1alpha3"
|
||||
```
|
||||
|
||||
Package v1alpha3 contains CUE definitions intended as convenience wrappers around the core data types defined in package core. The purpose of these wrappers is to make life easier for platform engineers by reducing boiler plate code and generating component build plans in a consistent manner.
|
||||
724
doc/md/archive/guides/2024-09-15-quickstart.mdx
Normal file
724
doc/md/archive/guides/2024-09-15-quickstart.mdx
Normal file
@@ -0,0 +1,724 @@
|
||||
---
|
||||
description: Try Holos with this quick start guide.
|
||||
slug: /archive/2024-09-15-quickstart
|
||||
sidebar_position: 100
|
||||
---
|
||||
|
||||
import Tabs from '@theme/Tabs';
|
||||
import TabItem from '@theme/TabItem';
|
||||
import Admonition from '@theme/Admonition';
|
||||
|
||||
# Quickstart
|
||||
|
||||
In this guide, you'll experience how Holos makes the process of operating a
|
||||
Platform safer, easier, and more consistent. We'll use Holos to manage a
|
||||
vendor-provided Helm chart as a Component. Next, we'll mix in our own custom
|
||||
resources to manage the Component with GitOps. Finally, you'll see how Holos
|
||||
makes it safer and easier to maintain software over time by surfacing the exact
|
||||
changes that will be applied when upgrading the vendor's chart to a new version,
|
||||
before they are actually made.
|
||||
|
||||
The [Concepts](/docs/concepts) page defines capitalized terms such as Platform
|
||||
and Component.
|
||||
|
||||
## What you'll need {#requirements}
|
||||
|
||||
You'll need the following tools installed to complete this guide.
|
||||
|
||||
1. [holos](/docs/install) - to build the Platform.
|
||||
2. [helm](https://helm.sh/docs/intro/install/) - to render Holos Components that
|
||||
wrap upstream Helm charts.
|
||||
|
||||
Optionally, if you'd like to apply the rendered manifests to a real Cluster,
|
||||
first complete the [Local Cluster Guide](/docs/guides/local-cluster).
|
||||
|
||||
## Install Holos
|
||||
|
||||
Install Holos with the following command or other methods listed on the
|
||||
[Installation](/docs/install/) page.
|
||||
|
||||
```bash
|
||||
go install github.com/holos-run/holos/cmd/holos@latest
|
||||
```
|
||||
|
||||
## Create a Git Repository
|
||||
|
||||
Start by initializing an empty Git repository. Holos operates on local files
|
||||
stored in a Git repository.
|
||||
|
||||
<Tabs groupId="init">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
mkdir holos-quickstart
|
||||
cd holos-quickstart
|
||||
git init
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
Initialized empty Git repository in /holos-quickstart/.git/
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
This guide assumes you will run commands from the root directory of the Git
|
||||
repository unless stated otherwise.
|
||||
|
||||
## Generate the Platform {#Generate-Platform}
|
||||
|
||||
Generate the Platform code in the repository root. A Platform refers to the
|
||||
entire set of software holistically integrated to provide a software development
|
||||
platform for your organization. In this guide, the Platform will include a
|
||||
single Component to demonstrate how the concepts fit together.
|
||||
|
||||
```bash
|
||||
holos generate platform quickstart
|
||||
```
|
||||
|
||||
Commit the generated platform config to the repository.
|
||||
|
||||
<Tabs groupId="commit-platform">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
git add .
|
||||
git commit -m "holos generate platform quickstart - $(holos --version)"
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
[main (root-commit) 0b17b7f] holos generate platform quickstart
|
||||
213 files changed, 72349 insertions(+)
|
||||
...
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
## Generate a Component {#generate-component}
|
||||
|
||||
The platform you generated is currently empty. Run the following command to
|
||||
generate the CUE code that defines a Helm Component.
|
||||
|
||||
<Tabs groupId="gen-podinfo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos generate component podinfo --component-version 6.6.1
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
generated component
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
The --component-version 6.6.1 flag intentionally installs an older release.
|
||||
You'll see how Holos assists with software upgrades later in this guide.
|
||||
|
||||
The generate component command creates two files: a leaf file,
|
||||
`components/podinfo/podinfo.gen.cue`, and a root file, `podinfo.gen.cue`. Holos
|
||||
leverages the fact that [order is
|
||||
irrelevant](https://cuelang.org/docs/tour/basics/order-irrelevance/) in CUE to
|
||||
register the component with the Platform by adding a file to the root of the Git
|
||||
repository. The second file defines the component in the leaf component
|
||||
directory.
|
||||
|
||||
<Tabs groupId="podinfo-files">
|
||||
<TabItem value="components/podinfo/podinfo.gen.cue" label="Leaf">
|
||||
`components/podinfo/podinfo.gen.cue`
|
||||
```cue showLineNumbers
|
||||
package holos
|
||||
|
||||
// Produce a helm chart build plan.
|
||||
(#Helm & Chart).Output
|
||||
|
||||
let Chart = {
|
||||
Name: "podinfo"
|
||||
Version: "6.6.1"
|
||||
Namespace: "default"
|
||||
|
||||
Repo: name: "podinfo"
|
||||
Repo: url: "https://stefanprodan.github.io/podinfo"
|
||||
|
||||
Values: {}
|
||||
}
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="podinfo.gen.cue" label="Root">
|
||||
`podinfo.gen.cue`
|
||||
```cue showLineNumbers
|
||||
package holos
|
||||
|
||||
// Manage podinfo on workload clusters only
|
||||
for Cluster in #Fleets.workload.clusters {
|
||||
#Platform: Components: "\(Cluster.name)/podinfo": {
|
||||
path: "components/podinfo"
|
||||
cluster: Cluster.name
|
||||
}
|
||||
}
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
In this example, we provide the minimal information needed to manage the Helm
|
||||
chart: the name, version, Kubernetes namespace for deployment, and the chart
|
||||
repository location.
|
||||
|
||||
This chart deploys cleanly without any values provided, but we include an empty
|
||||
Values struct to show how Holos improves consistency and safety in Helm by
|
||||
leveraging the strong type-checking in CUE. You can safely pass shared values,
|
||||
such as the organization’s domain name, to all Components across all clusters in
|
||||
the Platform by defining them at the root of the configuration.
|
||||
|
||||
Commit the generated component config to the repository.
|
||||
|
||||
<Tabs groupId="commit-component">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
git add .
|
||||
git commit -m "holos generate component podinfo - $(holos --version)"
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
[main cc0e90c] holos generate component podinfo
|
||||
2 files changed, 24 insertions(+)
|
||||
create mode 100644 components/podinfo/podinfo.gen.cue
|
||||
create mode 100644 podinfo.gen.cue
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
## Render the Component
|
||||
|
||||
You can render individual components without adding them to a Platform, which is
|
||||
helpful when developing a new component.
|
||||
|
||||
<Tabs groupId="render-podinfo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos render component ./components/podinfo --cluster-name=default
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
cached
|
||||
rendered podinfo
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
First, the command caches the Helm chart locally to speed up subsequent
|
||||
renderings. Then, the command runs Helm to produce the output and writes it into
|
||||
the deploy directory.
|
||||
|
||||
<Tabs groupId="tree-podinfo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
tree deploy
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
deploy
|
||||
└── clusters
|
||||
└── default
|
||||
└── components
|
||||
└── podinfo
|
||||
└── podinfo.gen.yaml
|
||||
|
||||
5 directories, 1 file
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
The component deploys to one cluster named `default`. In practice, the same
|
||||
component is often deployed to multiple clusters, such as `east` and `west` to
|
||||
provide redundancy and increase availability.
|
||||
|
||||
:::tip
|
||||
This example is equivalent to running `helm template` on the chart and saving
|
||||
the output to a file. Holos simplifies this task, making it safer and more
|
||||
consistent when managing many charts.
|
||||
:::
|
||||
|
||||
## Mix in an ArgoCD Application
|
||||
|
||||
We've seen how Holos works with Helm, but we haven't yet explored how Holos
|
||||
makes it easier to consistently and safely manage all of the software in a
|
||||
Platform.
|
||||
|
||||
Holos allows you to easily mix in resources that differentiate your Platform.
|
||||
We'll use this feature to mix in an ArgoCD [Application][application] to manage
|
||||
the podinfo Component with GitOps. We'll define this configuration in a way that
|
||||
can be automatically and consistently reused across all future Components added
|
||||
to the Platform.
|
||||
|
||||
Create a new file named `argocd.cue` in the root of your Git repository with the
|
||||
following contents:
|
||||
|
||||
<Tabs groupId="argocd-config">
|
||||
<TabItem value="command" label="argocd.cue">
|
||||
```cue showLineNumbers
|
||||
package holos
|
||||
|
||||
#ArgoConfig: {
|
||||
Enabled: true
|
||||
RepoURL: "https://github.com/holos-run/holos-quickstart-guide"
|
||||
}
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
:::tip
|
||||
If you plan to apply the rendered output to a real cluster, change the
|
||||
`example.com` RepoURL to the URL of the Git repository you created in this
|
||||
guide. You don't need to change the example if you're just exploring Holos by
|
||||
inspecting the rendered output without applying it to a live cluster.
|
||||
:::
|
||||
|
||||
With this file in place, render the component again.
|
||||
|
||||
<Tabs groupId="render-podinfo-argocd">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos render component ./components/podinfo --cluster-name=default
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
wrote deploy file
|
||||
rendered gitops/podinfo
|
||||
rendered podinfo
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Holos uses the locally cached chart to improve performance and reliability. It
|
||||
then renders the Helm template output along with an ArgoCD Application resource
|
||||
for GitOps.
|
||||
|
||||
:::tip
|
||||
By defining the ArgoCD configuration at the root, we again take advantage of the
|
||||
fact that [order is
|
||||
irrelevant](https://cuelang.org/docs/tour/basics/order-irrelevance/) in CUE.
|
||||
:::
|
||||
|
||||
Defining the configuration at the root ensures all future leaf Components take
|
||||
the ArgoCD configuration and render an Application manifest for GitOps
|
||||
management.
|
||||
|
||||
<Tabs groupId="tree-podinfo-argocd">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
tree deploy
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
deploy
|
||||
└── clusters
|
||||
└── default
|
||||
├── components
|
||||
│ └── podinfo
|
||||
│ └── podinfo.gen.yaml
|
||||
└── gitops
|
||||
└── podinfo.application.gen.yaml
|
||||
|
||||
6 directories, 2 files
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Notice the new `podinfo.application.gen.yaml` file created by enabling ArgoCD in
|
||||
the Helm component. The Application resource in the file looks like this:
|
||||
|
||||
<Tabs groupId="podinfo-application">
|
||||
<TabItem value="file" label="podinfo.application.gen.yaml">
|
||||
```yaml showLineNumbers
|
||||
apiVersion: argoproj.io/v1alpha1
|
||||
kind: Application
|
||||
metadata:
|
||||
name: podinfo
|
||||
namespace: argocd
|
||||
spec:
|
||||
destination:
|
||||
server: https://kubernetes.default.svc
|
||||
project: default
|
||||
source:
|
||||
path: ./deploy/clusters/default/components/podinfo
|
||||
repoURL: https://example.com/holos-quickstart.git
|
||||
targetRevision: main
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
:::tip
|
||||
Holos generates a similar Application resource for every additional Component
|
||||
added to your Platform.
|
||||
:::
|
||||
|
||||
Finally, add and commit the results to your Platform's Git repository.
|
||||
|
||||
<Tabs groupId="commit-argo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
git add .
|
||||
git commit -m "holos render component ./components/podinfo --cluster-name=default"
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
[main f95cef1] holos render component ./components/podinfo --cluster-name=default
|
||||
3 files changed, 134 insertions(+)
|
||||
create mode 100644 argocd.cue
|
||||
create mode 100644 deploy/clusters/default/components/podinfo/podinfo.gen.yaml
|
||||
create mode 100644 deploy/clusters/default/gitops/podinfo.application.gen.yaml
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
In this section, we learned how Holos simplifies mixing resources into
|
||||
Components, like an ArgoCD Application. Holos ensures consistency by managing an
|
||||
Application resource for every Component added to the Platform through the
|
||||
configuration you define in `argocd.cue` at the root of the repository.
|
||||
|
||||
## Define Workload Clusters {#workload-clusters}
|
||||
|
||||
We've generated a Component to manage podinfo and integrated it with our
|
||||
Platform, but rendering the Platform doesn't render podinfo. Podinfo isn't
|
||||
rendered because we haven't assigned any Clusters to the workload Fleet.
|
||||
|
||||
Define two new clusters, `east` and `west`, and assign them to the workload
|
||||
Fleet. Create a new file named `clusters.cue` in the root of your Git repository
|
||||
with the following contents:
|
||||
|
||||
<Tabs groupId="clusters">
|
||||
<TabItem value="clusters.cue" label="clusters.cue">
|
||||
```cue showLineNumbers
|
||||
package holos
|
||||
|
||||
// Define two workload clusters for disaster recovery.
|
||||
#Fleets: workload: clusters: {
|
||||
// In CUE _ indicates values are defined elsewhere.
|
||||
east: _
|
||||
west: _
|
||||
}
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
This example shows how Holos simplifies configuring multiple clusters with
|
||||
similar configuration by grouping them into a Fleet.
|
||||
|
||||
:::tip
|
||||
Fleets help segment a group of Clusters into one leader and multiple followers
|
||||
by designating one cluster as the primary. Holos makes it safer, easier, and
|
||||
more consistent to reconfigure which cluster is the primary. The primary can be
|
||||
set to automatically restore persistent data from backups, while non-primary
|
||||
clusters can be configured to automatically replicate from the primary.
|
||||
|
||||
Automatic database backup, restore, and streaming replication is an advanced
|
||||
topic enabled by Cloud Native PG and CUE. Check back for a guide on this and
|
||||
other Day 2 operations topics.
|
||||
:::
|
||||
|
||||
## Render the Platform {#render-platform}
|
||||
|
||||
Render the Platform to render the podinfo Component for each of the workload
|
||||
clusters.
|
||||
|
||||
<Tabs groupId="render-platform">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos render platform ./platform
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
rendered components/podinfo for cluster west in 99.480792ms
|
||||
rendered components/podinfo for cluster east in 99.882667ms
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
The render platform command iterates over every Cluster in the Fleet and renders
|
||||
each Component assigned to the Fleet. Notice the two additional subdirectories
|
||||
created under the deploy directory, one for each cluster: `east` and `west`.
|
||||
|
||||
<Tabs groupId="tree-platform">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
tree deploy
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
deploy
|
||||
└── clusters
|
||||
├── default
|
||||
│ ├── components
|
||||
│ │ └── podinfo
|
||||
│ │ └── podinfo.gen.yaml
|
||||
│ └── gitops
|
||||
│ └── podinfo.application.gen.yaml
|
||||
# highlight-next-line
|
||||
├── east
|
||||
│ ├── components
|
||||
│ │ └── podinfo
|
||||
│ │ └── podinfo.gen.yaml
|
||||
│ └── gitops
|
||||
│ └── podinfo.application.gen.yaml
|
||||
# highlight-next-line
|
||||
└── west
|
||||
├── components
|
||||
│ └── podinfo
|
||||
│ └── podinfo.gen.yaml
|
||||
└── gitops
|
||||
└── podinfo.application.gen.yaml
|
||||
|
||||
14 directories, 6 files
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Holos ensures consistency and safety by defining the ArgoCD Application once,
|
||||
with strong type checking, at the configuration root.
|
||||
|
||||
New Application resources are automatically generated for the `east` and `west`
|
||||
workload Clusters.
|
||||
|
||||
<Tabs groupId="applications">
|
||||
<TabItem value="east" label="east">
|
||||
`deploy/clusters/east/gitops/podinfo.application.gen.yaml`
|
||||
```yaml showLineNumbers
|
||||
apiVersion: argoproj.io/v1alpha1
|
||||
kind: Application
|
||||
metadata:
|
||||
name: podinfo
|
||||
namespace: argocd
|
||||
spec:
|
||||
destination:
|
||||
server: https://kubernetes.default.svc
|
||||
project: default
|
||||
source:
|
||||
# highlight-next-line
|
||||
path: ./deploy/clusters/east/components/podinfo
|
||||
repoURL: https://example.com/holos-quickstart.git
|
||||
targetRevision: main
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="west" label="west">
|
||||
`deploy/clusters/west/gitops/podinfo.application.gen.yaml`
|
||||
```yaml showLineNumbers
|
||||
apiVersion: argoproj.io/v1alpha1
|
||||
kind: Application
|
||||
metadata:
|
||||
name: podinfo
|
||||
namespace: argocd
|
||||
spec:
|
||||
destination:
|
||||
server: https://kubernetes.default.svc
|
||||
project: default
|
||||
source:
|
||||
# highlight-next-line
|
||||
path: ./deploy/clusters/west/components/podinfo
|
||||
repoURL: https://example.com/holos-quickstart.git
|
||||
targetRevision: main
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="default" label="default">
|
||||
`deploy/clusters/default/gitops/podinfo.application.gen.yaml`
|
||||
```yaml showLineNumbers
|
||||
apiVersion: argoproj.io/v1alpha1
|
||||
kind: Application
|
||||
metadata:
|
||||
name: podinfo
|
||||
namespace: argocd
|
||||
spec:
|
||||
destination:
|
||||
server: https://kubernetes.default.svc
|
||||
project: default
|
||||
source:
|
||||
# highlight-next-line
|
||||
path: ./deploy/clusters/default/components/podinfo
|
||||
repoURL: https://example.com/holos-quickstart.git
|
||||
targetRevision: main
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Add and commit the rendered Platform and workload Clusters.
|
||||
|
||||
<Tabs groupId="commit-render-platform">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
git add .
|
||||
git commit -m "holos render platform ./platform - $(holos --version)"
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
[main 5aebcf5] holos render platform ./platform - 0.93.2
|
||||
5 files changed, 263 insertions(+)
|
||||
create mode 100644 clusters.cue
|
||||
create mode 100644 deploy/clusters/east/components/podinfo/podinfo.gen.yaml
|
||||
create mode 100644 deploy/clusters/east/gitops/podinfo.application.gen.yaml
|
||||
create mode 100644 deploy/clusters/west/components/podinfo/podinfo.gen.yaml
|
||||
create mode 100644 deploy/clusters/west/gitops/podinfo.application.gen.yaml
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
## Upgrade a Helm Chart
|
||||
|
||||
Holos is designed to ease the burden of Day 2 operations. With Holos, upgrading
|
||||
software, integrating new software, and making safe platform-wide configuration
|
||||
changes become easier.
|
||||
|
||||
Let's upgrade the podinfo Component to see how this works in practice. First,
|
||||
update the Component version field to the latest upstream Helm chart version.
|
||||
|
||||
<Tabs groupId="gen-podinfo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos generate component podinfo --component-version 6.6.2
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
generated component
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Remove the cached chart version.
|
||||
|
||||
<Tabs groupId="gen-podinfo">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
rm -rf components/podinfo/vendor
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Now re-render the Platform.
|
||||
|
||||
<Tabs groupId="render-platform2">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
holos render platform ./platform
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```txt
|
||||
rendered components/podinfo for cluster east in 327.10475ms
|
||||
rendered components/podinfo for cluster west in 327.796541ms
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
Notice we're still using the upstream chart without modifying it. The Holos
|
||||
component wraps around the chart to mix in additional resources and integrate
|
||||
the component with the broader Platform.
|
||||
|
||||
## Visualize the Changes
|
||||
|
||||
Holos makes it easier to see exactly what changes are made and which resources
|
||||
will be applied to the API server. By design, Holos operates on local files,
|
||||
leaving the task of applying them to ecosystem tools like `kubectl` and ArgoCD.
|
||||
This allows platform operators to inspect changes during code review, or before
|
||||
committing the change at all.
|
||||
|
||||
For example, using `git diff`, we see that the only functional change when
|
||||
upgrading this Helm chart is the deployment of a new container image tag to each
|
||||
cluster. Additionally, we can roll out this change gradually by applying it to
|
||||
the east cluster first, then to the west cluster, limiting the potential blast
|
||||
radius of a problematic change.
|
||||
|
||||
<Tabs groupId="git-diff">
|
||||
<TabItem value="command" label="Command">
|
||||
```bash
|
||||
git diff deploy/clusters/east
|
||||
```
|
||||
</TabItem>
|
||||
<TabItem value="output" label="Output">
|
||||
```diff showLineNumbers
|
||||
diff --git a/deploy/clusters/east/components/podinfo/podinfo.gen.yaml b/deploy/clusters/east/components/podinfo/podinfo.gen.yaml
|
||||
index 7cc3332..8c1647d 100644
|
||||
--- a/deploy/clusters/east/components/podinfo/podinfo.gen.yaml
|
||||
+++ b/deploy/clusters/east/components/podinfo/podinfo.gen.yaml
|
||||
@@ -5,9 +5,9 @@ kind: Service
|
||||
metadata:
|
||||
name: podinfo
|
||||
labels:
|
||||
- helm.sh/chart: podinfo-6.6.1
|
||||
+ helm.sh/chart: podinfo-6.6.2
|
||||
app.kubernetes.io/name: podinfo
|
||||
- app.kubernetes.io/version: "6.6.1"
|
||||
+ app.kubernetes.io/version: "6.6.2"
|
||||
app.kubernetes.io/managed-by: Helm
|
||||
spec:
|
||||
type: ClusterIP
|
||||
@@ -29,9 +29,9 @@ kind: Deployment
|
||||
metadata:
|
||||
name: podinfo
|
||||
labels:
|
||||
- helm.sh/chart: podinfo-6.6.1
|
||||
+ helm.sh/chart: podinfo-6.6.2
|
||||
app.kubernetes.io/name: podinfo
|
||||
- app.kubernetes.io/version: "6.6.1"
|
||||
+ app.kubernetes.io/version: "6.6.2"
|
||||
app.kubernetes.io/managed-by: Helm
|
||||
spec:
|
||||
replicas: 1
|
||||
@@ -53,7 +53,7 @@ spec:
|
||||
terminationGracePeriodSeconds: 30
|
||||
containers:
|
||||
- name: podinfo
|
||||
# highlight-next-line
|
||||
- image: "ghcr.io/stefanprodan/podinfo:6.6.1"
|
||||
# highlight-next-line
|
||||
+ image: "ghcr.io/stefanprodan/podinfo:6.6.2"
|
||||
imagePullPolicy: IfNotPresent
|
||||
command:
|
||||
- ./podinfo
|
||||
```
|
||||
</TabItem>
|
||||
</Tabs>
|
||||
|
||||
:::tip
|
||||
Holos is designed to surface the _fully rendered_ manifests intended for the
|
||||
Kubernetes API server, making it easier to see and reason about platform-wide
|
||||
configuration changes.
|
||||
:::
|
||||
|
||||
## Recap {#recap}
|
||||
|
||||
In this quickstart guide, we learned how Holos makes it easier, safer, and more
|
||||
consistent to manage a Platform composed of multiple Clusters and upstream Helm
|
||||
charts.
|
||||
|
||||
We covered how to:
|
||||
|
||||
1. Generate a Git repository for the Platform config.
|
||||
2. Wrap the unmodified upstream podinfo Helm chart into a Component.
|
||||
3. Render an individual Component.
|
||||
4. Mix-in your Platform's unique resources to all Components. For example, ArgoCD Application resources.
|
||||
5. Define multiple similar, but not identical, workload clusters.
|
||||
6. Render the manifests for the entire Platform with the `holos render platform` command.
|
||||
7. Upgrade a Helm chart to the latest version as an important Day 2 task.
|
||||
8. Visualize and surface the details of planned changes Platform wide.
|
||||
|
||||
## Dive Deeper
|
||||
|
||||
If you'd like to dive deeper, check out the [Schema API][schema] and [Core
|
||||
API][core] reference docs. The main difference between the schema and core
|
||||
packages is that the schema is used by users to write refined CUE, while the
|
||||
core package is what the schema produces for `holos` to execute. Users rarely
|
||||
need to interact with the Core API when on the happy path, but can use the core
|
||||
package as an escape hatch when the happy path doesn't go where you want.
|
||||
|
||||
|
||||
[application]: https://argo-cd.readthedocs.io/en/stable/user-guide/application-specification/
|
||||
[schema]: /docs/api/author/v1alpha3/
|
||||
[core]: /docs/api/core/v1alpha3/
|
||||
@@ -1,7 +1,7 @@
|
||||
---
|
||||
description: Self service platform resource management for project teams.
|
||||
slug: /guides/manage-a-project
|
||||
sidebar_position: 200
|
||||
slug: /archive/guides/2024-09-17-manage-a-project
|
||||
sidebar_position: 250
|
||||
---
|
||||
|
||||
import Tabs from '@theme/Tabs';
|
||||
@@ -2,4 +2,23 @@ import DocCardList from '@theme/DocCardList';
|
||||
|
||||
# Guides
|
||||
|
||||
## Start with the [Quickstart] guide
|
||||
|
||||
The guides are organized as a progression. We'll use Holos to manage a
|
||||
fictional bank's platform, the Bank of Holos in each of the guides. In doing so
|
||||
we'll take the time to explain the foundational concepts of Holos.
|
||||
|
||||
1. [Quickstart] covers the foundational concepts of Holos.
|
||||
2. [Deploy a Service] explains how to deploy a containerized service using an
|
||||
existing Helm chart. This guide then explains how to deploy a similar service
|
||||
safely and consistently with CUE instead of Helm.
|
||||
3. [Change a Service] covers the day two task of making configuration changes to
|
||||
deployed services safely and consistently.
|
||||
|
||||
---
|
||||
|
||||
<DocCardList />
|
||||
|
||||
[Quickstart]: /docs/quickstart/
|
||||
[Deploy a Service]: /docs/guides/deploy-a-service/
|
||||
[Change a Service]: /docs/guides/change-a-service/
|
||||
|
||||
11
doc/md/guides/change-a-service.mdx
Normal file
11
doc/md/guides/change-a-service.mdx
Normal file
@@ -0,0 +1,11 @@
|
||||
---
|
||||
description: Change a service on your platform.
|
||||
slug: /guides/change-a-service
|
||||
sidebar_position: 300
|
||||
---
|
||||
|
||||
# Change a Service
|
||||
|
||||
:::warning
|
||||
Under construction.
|
||||
:::
|
||||
11
doc/md/guides/deploy-a-service.mdx
Normal file
11
doc/md/guides/deploy-a-service.mdx
Normal file
@@ -0,0 +1,11 @@
|
||||
---
|
||||
description: Deploy a service on your platform.
|
||||
slug: /guides/deploy-a-service
|
||||
sidebar_position: 200
|
||||
---
|
||||
|
||||
# Deploy a Service
|
||||
|
||||
:::warning
|
||||
Under construction.
|
||||
:::
|
||||
BIN
doc/md/guides/img/bank-home.png
Normal file
BIN
doc/md/guides/img/bank-home.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 690 KiB |
@@ -1,7 +1,7 @@
|
||||
---
|
||||
description: Build a local Cluster to use with these guides.
|
||||
slug: /guides/local-cluster
|
||||
sidebar_position: 300
|
||||
sidebar_position: 999
|
||||
---
|
||||
|
||||
import Tabs from '@theme/Tabs';
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@@ -5,6 +5,16 @@ slug: /
|
||||
|
||||
# Introduction
|
||||
|
||||
:::warning TODO
|
||||
See [introduction](https://github.com/facebook/docusaurus/blob/main/website/docs/introduction.mdx?plain=1)
|
||||
Welcome to Holos. Holos is an open source tool to manage software development
|
||||
platforms safely, easily, and consistently.
|
||||
|
||||
Our documentation is organized into [Guides] and the [API Reference].
|
||||
|
||||
:::tip
|
||||
Please start with the [Quickstart] guide to learn who Holos is for, what
|
||||
problems it solves, and if it can solve problems you have.
|
||||
:::
|
||||
|
||||
[Guides]: /docs/guides/
|
||||
[API Reference]: /docs/api/
|
||||
[Quickstart]: /docs/quickstart/
|
||||
|
||||
@@ -2,4 +2,12 @@ import DocCardList from '@theme/DocCardList';
|
||||
|
||||
# Get Started
|
||||
|
||||
## Start with the [Quickstart] guide
|
||||
|
||||
---
|
||||
|
||||
These documents provide additional context to supplement the [Quickstart] guide.
|
||||
|
||||
<DocCardList />
|
||||
|
||||
[Quickstart]: /docs/quickstart/
|
||||
|
||||
@@ -6,65 +6,10 @@ sidebar_position: 300
|
||||
|
||||
# Comparison
|
||||
|
||||
:::tip
|
||||
Holos is designed to complement and improve, not replace, existing tools in the
|
||||
cloud native ecosystem.
|
||||
:::
|
||||
|
||||
## Helm
|
||||
|
||||
### Chart Users
|
||||
|
||||
Describe how things are different when using an upstream helm chart.
|
||||
|
||||
### Chart Authors
|
||||
|
||||
Describe how things are different when writing a new helm chart.
|
||||
|
||||
## Kustomize
|
||||
|
||||
TODO
|
||||
|
||||
## ArgoCD
|
||||
|
||||
TODO
|
||||
|
||||
## Flux
|
||||
|
||||
TODO
|
||||
|
||||
## Timoni
|
||||
|
||||
| Aspect | Timoni | Holos | Comment |
|
||||
| ---------- | -------------------- | -------------------- | ---------------------------------------------------------------------------------------- |
|
||||
| Language | CUE | CUE | Like Holos, Timoni is also built on CUE. |
|
||||
| Artifact | OCI Image | Plain YAML Files | The Holos Authors find plain files easier to work with and reason about than OCI images. |
|
||||
| Outputs to | OCI Image Repository | Local Git repository | Holos is designed for use with existing GitOps tools. |
|
||||
| Concept | Module | Component | A Timoni Module is analogous to a Holos Component. |
|
||||
| Concept | Bundle | Platform | A Timoni Bundle is somewhat similar, but smaller in scope to a Holos Platform. |
|
||||
|
||||
:::important
|
||||
|
||||
The Holos Authors are deeply grateful to Stefan and Timoni for the capability of
|
||||
importing Kubernetes custom resource definitions into CUE. Without this
|
||||
functionality, much of the Kubernetes ecosystem would be more difficult to
|
||||
manage in CUE and therefore in Holos.
|
||||
|
||||
:::
|
||||
|
||||
|
||||
## KubeVela
|
||||
|
||||
1. Also built on CUE.
|
||||
2. Intended to create an Application abstraction.
|
||||
3. Holos prioritizes composition over abstraction.
|
||||
4. An abstraction of an Application acts as a filter that removes all but the lowest common denominator functionality. The Holos Authors have found this filtering effect to create excessive friction for software developers.
|
||||
5. Holos focuses instead on composition to empower developers and platform engineers to leverage the unique features and functionality of their software and platform.
|
||||
|
||||
## Pulumi
|
||||
|
||||
TODO
|
||||
|
||||
## Jsonnet
|
||||
|
||||
TODO
|
||||
|
||||
@@ -4,7 +4,7 @@ import type * as Preset from '@docusaurus/preset-classic';
|
||||
|
||||
const config: Config = {
|
||||
title: 'Holos',
|
||||
tagline: 'The Holistic Package Manager for Cloud Native Applications',
|
||||
tagline: 'The Holistic Platform Manager',
|
||||
favicon: 'img/favicon.ico',
|
||||
|
||||
// Set the production url of your site here
|
||||
|
||||
@@ -44,14 +44,14 @@ const sidebars: SidebarsConfig = {
|
||||
link: { type: 'doc', id: 'api' },
|
||||
items: [
|
||||
{
|
||||
label: 'Schema API',
|
||||
label: 'Author API',
|
||||
type: 'category',
|
||||
link: { type: 'doc', id: 'api/schema' },
|
||||
link: { type: 'doc', id: 'api/author' },
|
||||
collapsed: true,
|
||||
items: [
|
||||
{
|
||||
type: 'autogenerated',
|
||||
dirName: 'api/schema',
|
||||
dirName: 'api/author',
|
||||
},
|
||||
]
|
||||
},
|
||||
|
||||
@@ -40,8 +40,8 @@ const FeatureList: FeatureItem[] = [
|
||||
description: (
|
||||
<>
|
||||
Reduce risk and increase confidence in your configuration changes.
|
||||
Holos offers clear visibility into complete resource configuration
|
||||
<i>before</i> being applied.
|
||||
Holos offers clear visibility into platform wide changes before the
|
||||
change is made.
|
||||
</>
|
||||
),
|
||||
},
|
||||
|
||||
@@ -18,22 +18,17 @@ function HomepageHeader() {
|
||||
<p className="hero__subtitle">{siteConfig.tagline}</p>
|
||||
<p className="projectDesc">
|
||||
Holos adds CUE's type safety, unified structure, and strong validation
|
||||
features to your current software packages, including Helm and
|
||||
Kustomize. These features make the experience of integrating software
|
||||
packages into a holistic platform a pleasant journey.
|
||||
features to your Kubernetes configuration manifests, including Helm
|
||||
and Kustomize. These features make the experience of integrating
|
||||
software into a holistic platform a pleasant journey.
|
||||
</p>
|
||||
<div className={styles.buttons}>
|
||||
<Link
|
||||
className="button button--secondary button--lg"
|
||||
to="docs/quickstart">
|
||||
Get Started
|
||||
</Link>
|
||||
<span className={styles.divider}></span>
|
||||
<Link
|
||||
className="button button--primary button--lg"
|
||||
to="docs/concepts">
|
||||
Learn More
|
||||
</Link>
|
||||
<span className={styles.divider}></span>
|
||||
</div>
|
||||
</div>
|
||||
</header >
|
||||
@@ -44,8 +39,8 @@ export default function Home(): JSX.Element {
|
||||
const { siteConfig } = useDocusaurusContext();
|
||||
return (
|
||||
<Layout
|
||||
title={`${siteConfig.title} Package Manager`}
|
||||
description="Holos adds CUE's type safety, unified structure, and strong validation features to your current software packages, including Helm and Kustomize.">
|
||||
title={`${siteConfig.title} Platform Manager`}
|
||||
description="Holos adds CUE's type safety, unified structure, and strong validation features to your Kubernetes configuration manifests, including Helm and Kustomize.">
|
||||
<HomepageHeader />
|
||||
<main>
|
||||
<HomepageFeatures />
|
||||
|
||||
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|
Before Width: | Height: | Size: 461 KiB After Width: | Height: | Size: 480 KiB |
BIN
doc/website/static/img/social-card-blank.png
Normal file
BIN
doc/website/static/img/social-card-blank.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 477 KiB |
@@ -1,6 +1,6 @@
|
||||
// Code generated by cue get go. DO NOT EDIT.
|
||||
|
||||
//cue:generate cue get go github.com/holos-run/holos/api/schema/v1alpha3
|
||||
//cue:generate cue get go github.com/holos-run/holos/api/author/v1alpha3
|
||||
|
||||
// Package v1alpha3 contains CUE definitions intended as convenience wrappers
|
||||
// around the core data types defined in package core. The purpose of these
|
||||
@@ -9,8 +9,8 @@ package platforms
|
||||
//go generate rm -rf cue.mod/gen/github.com/holos-run/holos/api/meta
|
||||
//go:generate cue get go github.com/holos-run/holos/api/meta/...
|
||||
|
||||
//go generate rm -rf cue.mod/gen/github.com/holos-run/holos/api/schema
|
||||
//go:generate cue get go github.com/holos-run/holos/api/schema/...
|
||||
//go generate rm -rf cue.mod/gen/github.com/holos-run/holos/api/author
|
||||
//go:generate cue get go github.com/holos-run/holos/api/author/...
|
||||
|
||||
//go generate rm -rf cue.mod/gen/github.com/holos-run/holos/service/gen/holos/object
|
||||
//go:generate cue import ../../../service/holos/object/v1alpha1/object.proto -o cue.mod/gen/github.com/holos-run/holos/service/gen/holos/object/v1alpha1/object.proto_gen.cue -I ../../../proto -f
|
||||
|
||||
1
internal/generate/platforms/guide/.gitignore
vendored
1
internal/generate/platforms/guide/.gitignore
vendored
@@ -6,3 +6,4 @@
|
||||
ehthumbs.db
|
||||
Thumbs.db
|
||||
vendor/
|
||||
node_modules/
|
||||
|
||||
@@ -1,19 +1,19 @@
|
||||
package holos
|
||||
|
||||
import schema "github.com/holos-run/holos/api/schema/v1alpha3"
|
||||
import api "github.com/holos-run/holos/api/author/v1alpha3"
|
||||
|
||||
#Platform: schema.#Platform
|
||||
#Fleets: schema.#StandardFleets
|
||||
#Platform: api.#Platform
|
||||
#Fleets: api.#StandardFleets
|
||||
|
||||
_ComponentConfig: {
|
||||
Resources: #Resources
|
||||
ArgoConfig: #ArgoConfig
|
||||
}
|
||||
|
||||
#Helm: schema.#Helm & _ComponentConfig
|
||||
#Kustomize: schema.#Kustomize & _ComponentConfig
|
||||
#Kubernetes: schema.#Kubernetes & _ComponentConfig
|
||||
#Helm: api.#Helm & _ComponentConfig
|
||||
#Kustomize: api.#Kustomize & _ComponentConfig
|
||||
#Kubernetes: api.#Kubernetes & _ComponentConfig
|
||||
|
||||
#ArgoConfig: schema.#ArgoConfig & {
|
||||
#ArgoConfig: api.#ArgoConfig & {
|
||||
ClusterName: _ClusterName
|
||||
}
|
||||
|
||||
@@ -1 +1 @@
|
||||
1
|
||||
2
|
||||
|
||||
Reference in New Issue
Block a user