docker-netbootxyz/.github/workflows/release.yml

name: release
on:
  push:
    branches:
      - 'master'
  workflow_dispatch:
    
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
      with:
        fetch-depth: '0'
        
    - name: Set env variables
      run: |
        echo "GITHUB_DATE=$(date +'%Y-%m-%dT%H:%M:%S')" >> $GITHUB_ENV
        echo "GITHUB_SHA=${{ github.sha }}" >> $GITHUB_ENV
      
    - name: Get latest Webapp release version
      run: |
        WEBAPP_RELEASE=$(curl -sX GET "https://api.github.com/repos/netbootxyz/webapp/releases/latest" | jq -r '. | .tag_name')
        echo "WEBAPP_RELEASE=${WEBAPP_RELEASE}" >> $GITHUB_ENV
        
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3
    
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3
 
    - name: Login to the Docker Container Registry
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKERHUB_USER }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Login to the GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ secrets.GHCR_USER }}
        password: ${{ secrets.GHCR_TOKEN }}

    - name: Determine version numbers
      id: version_check
      continue-on-error: true
      run: |
        IMAGE=netbootxyz/netbootxyz
        TOKEN=$(curl -sX GET \
            "https://ghcr.io/token?scope=repository%3Anetbootxyz%2Fnetbootxyz%3Apull" \
            | jq -r '.token')
        TAG=$(curl -s --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
           --header "Authorization: Bearer ${TOKEN}" \
           "https://ghcr.io/v2/${IMAGE}/tags/list?n=1000" \
           | jq -r '.tags[-1]')
        echo LATEST_TAG: $TAG
        MULTIDIGEST=$(curl -s \
            --header "Accept: application/vnd.oci.image.index.v1+json" \
            --header "Authorization: Bearer ${TOKEN}" \
            "https://ghcr.io/v2/${IMAGE}/manifests/${TAG}" \
            | jq -r 'first(.manifests[].digest)')
        DIGEST=$(curl -s \
            --header "Accept: application/vnd.oci.image.manifest.v1+json" \
            --header "Authorization: Bearer ${TOKEN}" \
            "https://ghcr.io/v2/${IMAGE}/manifests/${MULTIDIGEST}" \
            | jq -r '.config.digest')
        IMAGE_INFO=$(curl -sL \
          --header "Authorization: Bearer ${TOKEN}" \
           "https://ghcr.io/v2/${IMAGE}/blobs/${DIGEST}" \
           | jq -r '.config')
        IMAGE_RELEASE=$(echo ${IMAGE_INFO} | jq -r '.Labels.build_version' | awk '{print $3}')
        IMAGE_VERSION=$(echo ${IMAGE_RELEASE} | awk -F'-nbxyz' '{print $1}')
        NB_RELEASE_NUMBER=$(echo ${IMAGE_RELEASE} | awk -F'-nbxyz' '{print $2}')
        TAG_SHA=$(git rev-list -n 1 ${IMAGE_RELEASE})
        if [ -z "${MULTIDIGEST}" ] || [ "${MULTIDIGEST}" == "null" ]; then
          echo "**** No existing container build found, assuming first build ****"
          VERSION_TAG=${WEBAPP_RELEASE}-nbxyz1
          echo "VERSION_TAG=${VERSION_TAG}" >> $GITHUB_ENV
        elif [ "${WEBAPP_RELEASE}" == "${IMAGE_VERSION}" ]; then
          echo "**** Version ${WEBAPP_RELEASE} unchanged, checking if there is anything to build..."
          if [ "${TAG_SHA}" == "${GITHUB_SHA}" ]; then
            echo "**** Nothing to do, exiting build... **** "
            exit 1
          else
            echo "**** Changes found... incrementing build number version... ****"
            NB_RELEASE_NUMBER=$((NB_RELEASE_NUMBER + 1))
            VERSION_TAG=${IMAGE_VERSION}-nbxyz${NB_RELEASE_NUMBER}
            echo "VERSION_TAG=${VERSION_TAG}" >> $GITHUB_ENV
          fi
        else
          echo "**** New version ${WEBAPP_RELEASE} found; old version was ${IMAGE_VERSION}. Generating new webapp release... ****"
          VERSION_TAG=${WEBAPP_RELEASE}-nbxyz1
          echo "VERSION_TAG=${VERSION_TAG}" >> $GITHUB_ENV
        fi
        
    - name: Docker meta
      if: steps.version_check.outcome == 'success' && steps.version_check.conclusion == 'success'
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: netbootxyz/netbootxyz
        labels: |
          maintainer=antonym
          org.opencontainers.image.created=${{ env.GITHUB_DATE }}
          org.opencontainers.image.authors=netboot.xyz
          org.opencontainers.image.url=https://github.com/netbootxyz/docker-netbootxyz/packages
          org.opencontainers.image.documentation=https://netboot.xyz
          org.opencontainers.image.source=https://github.com/netbootxyz/docker-netbootxyz
          org.opencontainers.image.version=${{ env.VERSION_TAG }}
          org.opencontainers.image.revision=${{ env.GITHUB_SHA }}
          org.opencontainers.image.vendor=netboot.xyz
          org.opencontainers.image.licenses=Apache-2.0
          org.opencontainers.image.ref.name=${{ env.GITHUB_SHA }}
          org.opencontainers.image.title=netbootxyz
          org.opencontainers.image.description=netboot.xyz official docker container - Your favorite operating systems in one place. A network-based bootable operating system installer based on iPXE.
      
    - name: Build and push image
      if: steps.version_check.outcome == 'success' && steps.version_check.conclusion == 'success'
      uses: docker/build-push-action@v6
      with:
        push: true
        context: .
        file: ./Dockerfile
        platforms: linux/amd64,linux/arm64
        build-args: |
         WEBAPP_VERSION=${{ env.WEBAPP_RELEASE }} 
         VERSION=${{ env.VERSION_TAG }}
         BUILD_DATE=${{ env.GITHUB_DATE }}
        tags: |
          netbootxyz/netbootxyz:latest
          netbootxyz/netbootxyz:${{ github.sha }}
          netbootxyz/netbootxyz:${{ env.VERSION_TAG }}
          ghcr.io/netbootxyz/netbootxyz:latest
          ghcr.io/netbootxyz/netbootxyz:${{ github.sha }}
          ghcr.io/netbootxyz/netbootxyz:${{ env.VERSION_TAG }}
        labels: ${{ steps.meta.outputs.labels }}
        
    - name: Bump version and push tag
      if: steps.version_check.outcome == 'success' && steps.version_check.conclusion == 'success'
      id: tag_version
      uses: anothrNick/github-tag-action@1.70.0
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        CUSTOM_TAG: ${{ env.VERSION_TAG }}
        WITH_V: true
        RELEASE_BRANCHES: master