Add .forgejo/workflows/build-and-push-image.yml

.forgejo/workflows/build-and-push-image.yml

@@ -0,0 +1,77 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main        # Adjust if your main branch is different
+    tags:
+      - 'v*.*.*'    # Trigger on version tags
+
+env:
+  REGISTRY: git.cmzi.uk
+
+  # Use 'github' context variables as fallbacks for repo owner and name
+  IMAGE_BASE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    runs-on: alpine-latest # Or your preferred runner with Docker
+    permissions:
+      contents: read
+      packages: write # Still required for pushing to the registry
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Recommended for metadata action
+
+      - name: Install Docker Client CLI
+        shell: sh
+        run: |
+          echo "Installing Docker client"
+          apk add docker
+          echo "Verifying docker client..."
+          docker --version
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Forgejo Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }} # Use the registry URL defined above
+          # Use 'github.actor' as a fallback for the username context
+          username: ${{ github.repository_owner }}
+          # Use the Forgejo-specific token - this SHOULD still work if Actions are enabled
+          password: ${{ secrets.RUNNER_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          # Construct the full image name using the defined REGISTRY and IMAGE_BASE_NAME
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_BASE_NAME }}
+          tags: |
+            # Use 'github.ref' for branch/tag detection
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }} # Adjust 'main' if needed
+            type=ref,event=branch
+            type=ref,event=tag
+            type=sha,format=short # Tag with short Git SHA
+          # Add standard OCI labels using github context
+          labels: |
+            org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.ref.name=${{ github.ref_name }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}    # Use tags from metadata step
+          labels: ${{ steps.meta.outputs.labels }}  # Use labels from metadata step
+          cache-from: type=gha
+          cache-to: type=gha,mode=max