build-push-docker.yml

name: Build and push Docker image
on:
  push:
    branches:
      - main
      - db/multi-platform-docker # just to test
    tags:
      - "*"

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build-push-image:
    name: Build and push Docker image
    runs-on: [matterlabs-ci-runner]
    strategy:
      matrix:
        platform: [linux/amd64, linux/arm64]
    steps:
      - uses: actions/checkout@v4

      - name: Set git SHA
        id: git_sha
        run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

      - name: Set Docker tag
        id: docker_tag
        run: |
          ts=$(date +%s%N | cut -b1-13)
          if [[ "${{ github.ref }}" == "refs/heads/main" ]]; then
            echo "tag=${{ steps.git_sha.outputs.sha_short }}-${ts}" >> $GITHUB_OUTPUT
          elif [[ "${{ github.ref }}" == refs/tags/* ]]; then
            echo "tag=$(echo ${GITHUB_REF#refs/tags/})" >> $GITHUB_OUTPUT
          elif [[ "${{ github.event_name }}" == "pull_request" ]]; then
            echo "tag=none" >> $GITHUB_OUTPUT
          else
            echo "Unsupported event ${GITHUB_EVENT_NAME} or ref ${GITHUB_REF}, only refs/heads/, refs/tags/ and pull_request are supported."
            exit 1
          fi

      - name: Login to GAR
        run: |
          gcloud auth configure-docker us-docker.pkg.dev -q
      
      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Cache Docker Layers
        uses: actions/cache@v4
        with:
          path: /tmp/.buildx-cache
          key: buildx-cache-${{ github.sha }}
          restore-keys: |
            buildx-cache-

      - name: Build and push Docker image
        id: docker_build
        uses: docker/build-push-action@v6
        with:
          context: .
          push: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/')) }}
          platforms: ${{ matrix.platform }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          tags: |
            us-docker.pkg.dev/matterlabs-infra/matterlabs-docker/anvil-zksync:${{ steps.docker_tag.outputs.tag }}
            us-docker.pkg.dev/matterlabs-infra/matterlabs-docker/anvil-zksync:latest
            ghcr.io/${{ github.repository_owner }}/anvil-zksync:${{ steps.docker_tag.outputs.tag }}
            ghcr.io/${{ github.repository_owner }}/anvil-zksync:latest

      - name: Print image digest to summary
        run: |
          echo "Image tag: ${{ steps.docker_tag.outputs.tag }}" >> $GITHUB_STEP_SUMMARY