volsync/.github/workflows/docker-build-push.yml at main · burgdev/volsync · GitHub

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name: Build and Push Docker Image

on:
  push:
    branches:
      - main
    tags:
      - 'v*'

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    runs-on: ${{ matrix.runner }}
    permissions:
      contents: read
      packages: write
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-latest
          - platform: linux/arm64
            runner: ubuntu-24.04-arm

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

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

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          flavor: |
            suffix=-${{ matrix.platform == 'linux/arm64' && 'arm64' || 'amd64' }}

      - name: Set build arguments
        id: build-args
        run: |
          BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          VERSION="${GITHUB_REF_NAME}"
          if [[ "${VERSION}" == "main" ]]; then
            VERSION="${GITHUB_SHA::8}"
          fi
          echo "BUILD_DATE=${BUILD_DATE}" >> $GITHUB_OUTPUT
          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: ${{ matrix.platform }}
          push: true
          labels: ${{ steps.meta.outputs.labels }}
          build-args: |
            builddate_arg=${{ steps.build-args.outputs.BUILD_DATE }}
            version_arg=${{ steps.build-args.outputs.VERSION }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          outputs: type=image,name=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true

      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Upload digest
        uses: actions/upload-artifact@v4
        with:
          name: digests-${{ matrix.platform == 'linux/arm64' && 'arm64' || 'amd64' }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    runs-on: ubuntu-latest
    needs:
      - build
    permissions:
      contents: read
      packages: write
    steps:
      - name: Download digests
        uses: actions/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

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

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            # For pushes to main branch, use 'main' tag
            type=ref,event=branch,enable={{is_default_branch}}
            # For tags, use the tag name
            type=ref,event=tag
            # For version tags, also add 'latest'
            type=raw,value=latest,enable={{is_default_branch}}
            type=raw,value=latest,enable=${{ startsWith(github.ref, 'refs/tags/v') }}
            # Include the semantic version without 'v' prefix
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
            $(printf '${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@sha256:%s ' *)

      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}