feature: publish to GHCR registry

.github/workflows/release-charts.yaml

@@ -9,6 +9,11 @@ on:
     # every friday at 4 o'clock
     - cron: '0 16 * * 5'
   workflow_dispatch:
+
+permissions:
+  contents: write
+  packages: write
+
 jobs:
   bump-versions:
     runs-on: ubuntu-latest
@@ -71,15 +76,31 @@ jobs:
       - name: Install Helm
         uses: azure/setup-helm@v1
         with:
-          version: v3.5.1
+          version: v3.16.3
 
       - name: Add dependency chart repos
         run: |
           helm repo add bitnami https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
 
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
       - name: Release charts
         uses: helm/[email protected]
         with:
           charts_dir: charts
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"          
+
+      - name: Push Chart to GHCR
+        run: |
+          for pkg in .cr-release-packages/*; do
+            if [ -z "${pkg:-}" ]; then
+              break
+            fi
+            helm push "${pkg}" oci://ghcr.io/${{ github.repository }}
+          done

README.md

@@ -16,6 +16,8 @@ Once Helm is set up properly, add the repo as follows:
 $ helm repo add codecentric https://codecentric.github.io/helm-charts
 ```
 
+Helm chart are also published to GitHub container registry as OCI artifact.
+
 ## Contributing
 
 We welcome contributions.

charts/keycloak/README.md

@@ -8,6 +8,12 @@
 $ helm install keycloak codecentric/keycloak
 ```
 
+or via GitHub Container Registry:
+
+```console
+$ helm install keycloak oci://ghcr.io/codecentric/helm-charts/keycloak --version <version>
+```
+
 ## Introduction
 
 This chart bootstraps a [Keycloak](http://www.keycloak.org/) StatefulSet on a [Kubernetes](https://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.

charts/keycloakx/README.md

@@ -44,6 +44,12 @@ To install the chart with the release name `keycloakx`:
 $ helm install keycloak codecentric/keycloakx
 ```
 
+or via GitHub Container Registry:
+
+```console
+$ helm install keycloak oci://ghcr.io/codecentric/helm-charts/keycloakx --version <version>
+```
+
 ## Uninstalling the Chart
 
 To uninstall the `keycloakx` deployment:

charts/mailhog/README.md

@@ -22,6 +22,12 @@ To install the chart with the release name `mailhog`:
 $ helm install mailhog codecentric/mailhog
 ```
 
+or via GitHub Container Registry:
+
+```console
+$ helm install mailhog oci://ghcr.io/codecentric/helm-charts/mailhog --version <version>
+```
+
 The command deploys Mailhog on the Kubernetes cluster in the default configuration. The [configuration](#configuration)
 section lists the parameters that can be configured during installation.