chore: Release channels action to create stable images (#4110)

* feat: testing skopeo and introduce stable container

* yaml syntax

* yaml syntax

* testing release

* corrected docker images path

* set release to 2.0.0 to test copy

* reset channel

* create stable images

* feat: create release channels for docker containers

* fix removed arch due to multiarch build

* chore: updated action name

* Update .github/workflows/release-channels.yml

Co-authored-by: Florian Forster <florian@caos.ch>

Co-authored-by: Florian Forster <florian@caos.ch>

.github/workflows/release-channels.yml

@@ -0,0 +1,52 @@
+name: ZITADEL Release tags
+
+on:
+  push:
+    branches:
+      - "main"
+    paths:
+      - 'release-channels.yaml'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  Build:
+    runs-on: ubuntu-20.04
+    env:
+      DOCKER_BUILDKIT: 1
+    steps:
+      - name: Source checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: get stable tag
+        run: echo STABLE_RELEASE=$(yq eval '.stable' release-channels.yaml) >> $GITHUB_ENV
+      - name: checkout stable tag
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+          ref: ${{ env.STABLE_RELEASE }}
+      - name: GitHub Container Registry Login
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - uses: tibdex/github-app-token@v1
+        id: generate-token
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+      - name: Google Artifact Registry Login
+        uses: docker/login-action@v1
+        with:
+          registry: europe-docker.pkg.dev
+          username: _json_key_base64
+          password: ${{ secrets.GCR_JSON_KEY_BASE64 }}
+      - name: copy release to stable
+        run: |    
+          skopeo --version
+          skopeo copy docker://ghcr.io/zitadel/zitadel:$STABLE_RELEASE docker://ghcr.io/zitadel/zitadel:stable

release-channels.yaml

@@ -0,0 +1 @@
+stable: "v2.0.1"