SubConv/.github/workflows/build-image.yml at main · bowencool/SubConv · GitHub

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name: Build and Push Container Image

on:
  workflow_call:
    inputs:
      tags:
        description: 'Tag to use for the image'
        type: string
        required: true
        default: 'dev'

permissions:
  contents: read
  packages: write

env:
  IMAGE_REPOSITORY: ghcr.io/bowencool/subconv

jobs:
  setup:
    runs-on: ubuntu-latest
    outputs:
      tags: ${{ steps.tag.outputs.TAG_NAME }}
    steps:
      - id: tag
        run: |
          # get tag from input (comma separated) and image_repository
          new_tag=""
          for tag in $(echo ${{ inputs.tags }} | tr "," "\n"); do
            new_tag="$new_tag,${{ env.IMAGE_REPOSITORY }}:$tag"
          done
          # outupt
          echo "TAG_NAME=$new_tag" >> $GITHUB_OUTPUT

  build:
    runs-on: ${{ matrix.runner }}
    needs: setup
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-latest
          - platform: linux/arm64
            runner: ubuntu-24.04-arm

    steps:
    - name: Prepare platform pair
      run: |
        platform=${{ matrix.platform }}
        echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV

    - name: Checkout code
      uses: actions/checkout@v4

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

    - name: Log in to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Build and push by digest
      id: build
      uses: docker/build-push-action@v5
      with:
        context: .
        platforms: ${{ matrix.platform }}
        outputs: type=image,name=${{ env.IMAGE_REPOSITORY }},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-${{ env.PLATFORM_PAIR }}
        path: /tmp/digests/*
        if-no-files-found: error
        retention-days: 1

  merge:
    runs-on: ubuntu-latest
    needs: [setup, build]

    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: Log in to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Create and push manifest
      working-directory: /tmp/digests
      run: |
        TAG_ARGS=""
        for tag in $(echo "${{ needs.setup.outputs.tags }}" | tr "," "\n"); do
          TAG_ARGS="$TAG_ARGS --tag $tag"
        done
        docker buildx imagetools create $TAG_ARGS \
          $(printf '${{ env.IMAGE_REPOSITORY }}@sha256:%s ' *)