build_containers.yaml

name: Build container image for GHCR
on:
  push:
    branches:
      - devel
      - RELEASE_*
  workflow_dispatch:
  schedule:
    - cron: '0 18 * * 5'

jobs:
  build-amd64:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        base:
          - {image: 'ghcr.io/bioconductor/rocker-r-ver', amdtag: 'devel-amd64', outname: 'r-ver'}
          - {image: 'ghcr.io/bioconductor/rocker-rstudio', amdtag: 'devel-amd64', outname: 'bioconductor_docker'}
          - {image: 'rocker/tidyverse', amdtag: 'devel', outname: 'tidyverse'}
          - {image: 'ghcr.io/bioconductor/rocker-cuda', amdtag: 'devel-amd64', outname: 'cuda'}
          - {image: 'ghcr.io/bioconductor/rocker-ml', amdtag: 'devel-amd64', outname: 'ml'}
          - {image: 'ghcr.io/bioconductor/rocker-ml-verse', amdtag: 'devel-amd64', outname: 'ml-verse'}
          - {image: 'rocker/shiny', amdtag: 'latest', outname: 'shiny'}
    steps:
      - uses: actions/checkout@v4
      
      - name: Free root space
        uses: almahmoud/free-root-space@main
        with:
          verbose: true

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

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

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to Dockerhub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata for container image
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository_owner }}/${{ matrix.base.outname }}
          tags: |
            type=raw,value={{branch}}

      - name: Extract container name without tag
        id: vars
        run: |
          echo container=$(echo '${{ steps.meta.outputs.tags }}' | awk -F':' '{print $1}') >> $GITHUB_OUTPUT

      - name: Build and push AMD64 by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          build-args: |
            BASE_IMAGE=${{ matrix.base.image }}
            amd64_tag=${{ matrix.base.amdtag }}
          file: Dockerfile
          platforms: linux/amd64
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ steps.vars.outputs.container }},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.base.outname }}-amd64
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  build-arm64:
    runs-on: ubuntu-latest-arm64
    strategy:
      fail-fast: false
      matrix:
        base:
          - {image: 'ghcr.io/bioconductor/rocker-r-ver', armtag: 'devel-arm64', outname: 'r-ver'}
          - {image: 'ghcr.io/bioconductor/rocker-rstudio', armtag: 'devel-arm64', outname: 'bioconductor_docker'}
    steps:
      - uses: actions/checkout@v3

      - name: Free root space
        uses: almahmoud/free-root-space@main
        with:
          verbose: true

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

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

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to Dockerhub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/${{ github.repository_owner }}/${{ matrix.base.outname }}
          tags: |
            type=raw,value={{branch}}

      - name: Extract container name without tag
        id: vars
        run: |
          echo container=$(echo '${{ steps.meta.outputs.tags }}' | awk -F':' '{print $1}') >> $GITHUB_OUTPUT

      - name: Build and push ARM64 by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          build-args: |
            BASE_IMAGE=${{ matrix.base.image }}
            arm64_tag=${{ matrix.base.armtag }}
          file: Dockerfile
          platforms: linux/arm64
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=${{ steps.vars.outputs.container }},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.base.outname }}-arm64
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    needs: [build-amd64, build-arm64]
    runs-on: ubuntu-latest
    strategy:
      matrix:
        base:
          - {image: 'ghcr.io/bioconductor/rocker-r-ver', amdtag: 'devel-amd64', outname: 'r-ver', platforms: 'amd64,arm64'}
          - {image: 'ghcr.io/bioconductor/rocker-rstudio', amdtag: 'devel-amd64', outname: 'bioconductor_docker', platforms: 'amd64,arm64'}
          - {image: 'rocker/tidyverse', amdtag: 'devel', outname: 'tidyverse', platforms: 'amd64'}
          - {image: 'ghcr.io/bioconductor/rocker-cuda', amdtag: 'devel-amd64', outname: 'cuda', platforms: 'amd64'}
          - {image: 'ghcr.io/bioconductor/rocker-ml', amdtag: 'devel-amd64', outname: 'ml', platforms: 'amd64'}
          - {image: 'ghcr.io/bioconductor/rocker-ml-verse', amdtag: 'devel-amd64', outname: 'ml-verse', platforms: 'amd64'}
          - {image: 'rocker/shiny', amdtag: 'latest', outname: 'shiny', platforms: 'amd64'}
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Login to Dockerhub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Echo platforms to build
        id: buildlist
        shell: bash
        run: |
          PLATFORMLIST="${{matrix.base.platforms}}"
          IFS=','; for item in $PLATFORMLIST; do echo "$item=build" >> $GITHUB_OUTPUT; done

      - name: Download AMD64 digests
        if: steps.buildlist.outputs.amd64 == 'build'
        uses: actions/download-artifact@v4
        with:
          name: digests-${{ matrix.base.outname }}-amd64
          path: /tmp/digests/amd64

      - name: Download ARM64 digests
        if: steps.buildlist.outputs.arm64 == 'build'
        uses: actions/download-artifact@v4
        with:
          name: digests-${{ matrix.base.outname }}-arm64
          path: /tmp/digests/arm64

      - name: Set image tags
        id: meta1
        uses: docker/metadata-action@v5
        with:
          images: |
            ghcr.io/${{ github.repository_owner }}/${{ matrix.base.outname }}
          tags: |
            type=raw,value={{branch}}

      - name: Set image tags
        id: meta2
        uses: docker/metadata-action@v5
        with:
          images: |
            docker.io/${{ github.repository_owner }}/${{ matrix.base.outname }}
            ghcr.io/${{ github.repository_owner }}/${{ matrix.base.outname }}
          tags: |
            type=raw,value={{branch}}

      - name: Create manifest list and push
        run: |
          # Prepare tags
          TAGS=$(echo '${{ steps.meta2.outputs.tags }}' | tr '\n' ' ' | sed 's/ *$//')
          TAG_ARGS=""
          for tag in $TAGS; do
            TAG_ARGS="$TAG_ARGS -t $tag"
          done

          # Add R version tags for ghcr.io images
          if [[ "${{ matrix.base.image }}" == *"ghcr.io"* ]]; then
            R_VER=$(docker pull ${{ matrix.base.image }}:${{ matrix.base.amdtag }} 2>/dev/null && \
                    docker inspect ${{ matrix.base.image }}:${{ matrix.base.amdtag }} | \
                    jq -r '.[].Config.Env[]|select(match("^R_VERSION"))|.[index("=")+1:]')
            if [ ! -z "$R_VER" ]; then
              for tag in $TAGS; do
                TAG_ARGS="$TAG_ARGS -t ${tag}-R-${R_VER}"
              done
            fi
          fi

          # Add alternative tags without _docker in name
          if [[ "${{ matrix.base.outname }}" == *"_docker"* ]]; then
            for tag in $TAGS; do
              ALT_TAG=$(echo $tag | sed 's/_docker//')
              TAG_ARGS="$TAG_ARGS -t $ALT_TAG"
            done
          fi
          
          CONTAINERNAME=$(echo '${{ steps.meta1.outputs.tags }}' | awk -F':' '{print $1}')

          # Create manifest list
          DIGESTS=$(cd /tmp/digests && find . -type f -exec echo "$CONTAINERNAME@sha256:{}" \; | sed 's/\.\//:/')
          
          docker buildx imagetools create $TAG_ARGS $DIGESTS

      - name: Inspect image
        run: |
          for tag in ${{ steps.meta2.outputs.tags }}; do
            docker buildx imagetools inspect $tag
          done