feat: helm oci release

Upload and sign helm chart.

Signed-off-by: Serge Logvinov <serge.logvinov@sinextra.dev>

.github/ISSUE_TEMPLATE/BUG_REPORT.md

@@ -0,0 +1,18 @@
+---
+name: Bug Report
+about: Report a bug.
+title: ""
+labels: ""
+assignees: ""
+---
+
+## Bug Report
+
+### Description
+
+### Logs
+
+### Environment
+
+- Plugin version:
+- Kubernetes version: [`kubectl version --short`]

.github/workflows/release-charts.yaml

@@ -0,0 +1,41 @@
+name: HelmChart Release
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'charts/**'
+
+jobs:
+  build-publish:
+    name: "Publish helm chart"
+    timeout-minutes: 10
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Install Helm
+        uses: azure/setup-helm@v3
+      - name: Install Cosign
+        uses: sigstore/cosign-installer@v3.1.1
+
+      - name: Github registry login
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Helm release
+        timeout-minutes: 5
+        run: make helm-login helm-release
+        env:
+          HELM_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Makefile

@@ -2,6 +2,7 @@ REGISTRY ?= ghcr.io
 USERNAME ?= sergelogvinov
 PROJECT ?= proxmox-cloud-controller-manager
 IMAGE ?= $(REGISTRY)/$(USERNAME)/$(PROJECT)
+HELMREPO ?= $(REGISTRY)/$(USERNAME)/charts
 PLATFORM ?= linux/arm64,linux/amd64
 PUSH ?= false
 
@@ -85,6 +86,19 @@ helm-unit: ## Helm Unit Tests
 	@helm template -f charts/proxmox-cloud-controller-manager/ci/values.yaml \
 		proxmox-cloud-controller-manager charts/proxmox-cloud-controller-manager >/dev/null
 
+.PHONY: helm-login
+helm-login: ## Helm Login
+	@echo "${HELM_TOKEN}" | helm registry login $(REGISTRY) --username $(USERNAME) --password-stdin
+
+.PHONY: helm-release
+helm-release: ## Helm Release
+	@rm -rf dist/
+	@helm package charts/proxmox-cloud-controller-manager -d dist
+	@helm push dist/proxmox-cloud-controller-manager-*.tgz oci://$(HELMREPO) 2>&1 | tee dist/.digest
+	@cosign sign --yes $(COSING_ARGS) $(HELMREPO)/proxmox-cloud-controller-manager@$$(cat dist/.digest | awk -F "[, ]+" '/Digest/{print $$NF}')
+
+############
+
 .PHONY: docs
 docs:
 	helm template -n kube-system proxmox-cloud-controller-manager \