Merge pull request #9 from grafana-operator/setup-ci

feat: release ci for the plugin init container

.github/workflows/release.yaml

@@ -0,0 +1,45 @@
+name: Release grafana_plugins_init
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  container-images:
+    name: Build and push container images
+    runs-on: ubuntu-latest
+    env:
+      DOCKER_REGISTRY: quay.io
+      DOCKER_REPOSITORY: grafana-operator/grafana_plugins_init
+      DOCKER_PLATFORMS: linux/amd64,linux/arm64,linux/s390x
+    steps:
+      - name: Clone repo and checkout submodules
+        uses: actions/[email protected]
+        with:
+          submodules: recursive
+      - name: Prepare
+        id: prep
+        run: |
+          VERSION=sha-${GITHUB_SHA::8}
+          if [[ $GITHUB_REF == refs/tags/* ]]; then
+            VERSION=${GITHUB_REF/refs\/tags\//}
+          fi
+          echo ::set-output name=BUILD_DATE::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+          echo ::set-output name=VERSION::${VERSION}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/[email protected]
+      - name: Log in to quay.io
+        uses: docker/login-action@v1
+        with:
+          registry: ${{ env.DOCKER_REGISTRY }}
+          username: ${{ secrets.QUAY_USERNAME }}
+          password: ${{ secrets.QUAY_PASSWORD }}
+      - name: Build and push multi-arch Docker image
+        uses: docker/build-push-action@v2
+        with:
+          platforms: ${{ env.DOCKER_PLATFORMS }}
+          push: true
+          tags: ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_REPOSITORY }}:${{ steps.prep.outputs.VERSION }}