Validate Docker tags before build #4
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| name: Docker Image build | |
| on: | |
| push: | |
| branches: [ "main" ] | |
| jobs: | |
| docker: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Checkout | |
| uses: actions/checkout@v4 | |
| - name: Set up QEMU | |
| uses: docker/setup-qemu-action@v3 | |
| - name: Set up Docker Buildx | |
| uses: docker/setup-buildx-action@v3 | |
| - name: Login to Docker Hub | |
| uses: docker/login-action@v3 | |
| with: | |
| username: ${{ secrets.DOCKER_HUB_USERNAME }} | |
| password: ${{ secrets.DOCKER_HUB_SECRET }} | |
| - name: Prepare image metadata | |
| id: prep | |
| run: | | |
| if [ -z "$DOCKER_USER" ]; then | |
| echo "::error::Secret DOCKER_HUB_USERNAME is not set." >&2 | |
| exit 1 | |
| fi | |
| if [ -z "$IMAGE_REPO" ]; then | |
| echo "::error::Variable REPO is not set." >&2 | |
| exit 1 | |
| fi | |
| if [ -z "$IMAGE_VERSION" ]; then | |
| echo "::error::Variable VERSION is not set." >&2 | |
| exit 1 | |
| fi | |
| IMAGE_NAME="$DOCKER_USER/$IMAGE_REPO" | |
| echo "image=$IMAGE_NAME" >> "$GITHUB_OUTPUT" | |
| echo "version=$IMAGE_VERSION" >> "$GITHUB_OUTPUT" | |
| env: | |
| DOCKER_USER: ${{ secrets.DOCKER_HUB_USERNAME }} | |
| IMAGE_REPO: ${{ vars.REPO }} | |
| IMAGE_VERSION: ${{ vars.VERSION }} | |
| - name: Build and push | |
| uses: docker/build-push-action@v5 | |
| with: | |
| context: . | |
| platforms: linux/amd64,linux/arm64 | |
| push: true | |
| tags: ${{ steps.prep.outputs.image }}:latest, ${{ steps.prep.outputs.image }}:${{ steps.prep.outputs.version }}-BUILD${{ github.run_number }} |