name: Create ACA Docker Image
on:
  release:
    types: [ published ]
  workflow_dispatch:
    inputs:
      also_tag_latest:
        description: 'Tag latest?'
        required: false
        type: boolean
env:
  DOCKERFILE_ROCKY: aca-rocky
  DOCKERFILE_WINDOWS: aca-windows
  IMAGE_NAME_ROCKY: ghcr.io/nsacyber/hirs/aca-rocky
  IMAGE_NAME_WINDOWS: ghcr.io/nsacyber/hirs/aca-windows
  IMAGE_NAME_WINDOWS_COMPAT: ghcr.io/nsacyber/hirs/aca-windows-1809
  PUBLIC_IMAGE_NAME: ghcr.io/nsacyber/hirs/aca
  PUBLIC_IMAGE_TAG_LATEST: ghcr.io/nsacyber/hirs/aca:latest
  TAG_LATEST: ${{ github.event_name == 'release' || inputs.also_tag_latest }} # The public docker image will be tagged 'latest' for releases, or if this option is manually selected.
jobs:   
  setup:
    runs-on: ubuntu-latest
    outputs:
      IMAGE_TAG: ${{ steps.setenv.outputs.IMAGE_TAG }}
      ROCKY_IMAGE_TAG: ${{ steps.setenv.outputs.ROCKY_IMAGE_TAG }}
      WINDOWS_IMAGE_TAG: ${{ steps.setenv.outputs.WINDOWS_IMAGE_TAG }}
      WINDOWS_COMPAT_IMAGE_TAG: ${{ steps.setenv.outputs.WINDOWS_COMPAT_IMAGE_TAG }}
      PUBLIC_IMAGE_TAG: ${{ steps.setenv.outputs.PUBLIC_IMAGE_TAG }}
    steps:
    - name: Set env
      id: setenv
      shell: bash
      run: |
        # Parse docker image tag from GitHub tag if available
        if [ "${{ github.ref_type }}" = "tag" ]; then
          # tags start with refs/tags/. Also remove v if it exists.
          export IMAGE_TAG_VAR=${GITHUB_REF:10}
          export IMAGE_TAG_VAR=${IMAGE_TAG_VAR//v/}
        else
          # Not a tag, use the commit hash. Do not tag as latest.
          export IMAGE_TAG_VAR=${GITHUB_SHA:0:7}
        fi
        # To lowercase
        export IMAGE_TAG_VAR=${IMAGE_TAG_VAR,,}
        
        # Save to output
        echo "IMAGE_TAG=$IMAGE_TAG_VAR" >> "$GITHUB_OUTPUT"
        echo "ROCKY_IMAGE_TAG=$IMAGE_NAME_ROCKY:$IMAGE_TAG_VAR" >> "$GITHUB_OUTPUT"
        echo "WINDOWS_IMAGE_TAG=$IMAGE_NAME_WINDOWS:$IMAGE_TAG_VAR" >> "$GITHUB_OUTPUT"
        echo "WINDOWS_COMPAT_IMAGE_TAG=$IMAGE_NAME_WINDOWS_COMPAT:$IMAGE_TAG_VAR" >> "$GITHUB_OUTPUT"
        echo "PUBLIC_IMAGE_TAG=$PUBLIC_IMAGE_NAME:$IMAGE_TAG_VAR" >> "$GITHUB_OUTPUT"
    - name: Print env
      run: |
        echo GITHUB_REF_NAME=${{ github.ref_name }}
        echo DOCKERFILE_ROCKY=$DOCKERFILE_ROCKY
        echo DOCKERFILE_WINDOWS=$DOCKERFILE_WINDOWS
        echo IMAGE_NAME_ROCKY=$IMAGE_NAME_ROCKY
        echo IMAGE_NAME_WINDOWS=$IMAGE_NAME_WINDOWS
        echo IMAGE_NAME_WINDOWS_COMPAT=$IMAGE_NAME_WINDOWS_COMPAT
        echo PUBLIC_IMAGE_NAME=$PUBLIC_IMAGE_NAME
        echo PUBLIC_IMAGE_TAG_LATEST=$PUBLIC_IMAGE_TAG_LATEST
        echo TAG_LATEST=$TAG_LATEST
        echo IMAGE_TAG=${{ steps.setenv.outputs.IMAGE_TAG }}
        echo ROCKY_IMAGE_TAG=${{ steps.setenv.outputs.ROCKY_IMAGE_TAG }}
        echo WINDOWS_IMAGE_TAG=${{ steps.setenv.outputs.WINDOWS_IMAGE_TAG }}
        echo WINDOWS_COMPAT_IMAGE_TAG=${{ steps.setenv.outputs.WINDOWS_COMPAT_IMAGE_TAG }}
        echo PUBLIC_IMAGE_TAG=${{ steps.setenv.outputs.PUBLIC_IMAGE_TAG }}
  
  rocky-image:
    needs: setup
    runs-on: ubuntu-latest
    env:
      TAG: ${{ needs.setup.outputs.ROCKY_IMAGE_TAG }}
    steps:
    - name: Checkout main
      uses: actions/checkout@v4
      
    - name: Login to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
        
    - name: Build and push a release Docker image for ${{ github.repository }}
      uses: docker/build-push-action@v5
      with:
        context: "{{defaultContext}}:.ci/docker"
        file: Dockerfile.${{env.DOCKERFILE_ROCKY}}
        build-args: REF=${{ github.ref_name }}
        tags: ${{env.TAG}}
        push: true
        
  windows-11-image:
    needs: setup
    runs-on: windows-latest
    env:
      TAG: ${{ needs.setup.outputs.WINDOWS_IMAGE_TAG }}
    steps:
    - name: Checkout main
      uses: actions/checkout@v4
      
    - name: Login to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Build the docker image for ${{ github.repository }}
      run: |
        cd ./.ci/docker
        docker build --build-arg "REF=${{ github.ref_name }}" -f ./Dockerfile.${{env.DOCKERFILE_WINDOWS}} -t ${{env.TAG}} .
    
    - name: Push the docker image
      run: |
        docker push ${{env.TAG}}
        
  windows-compat-image: # This job uses a different runner and build arg than the other windows job.
    needs: setup
    runs-on: windows-2019
    env:
      TAG: ${{ needs.setup.outputs.WINDOWS_COMPAT_IMAGE_TAG }}
    steps:
    - name: Checkout main
      uses: actions/checkout@v4

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

    - name: Build the docker image for ${{ github.repository }}
      run: |
        cd ./.ci/docker
        docker build --build-arg "REF=${{ github.ref_name }}" -f ./Dockerfile.${{env.DOCKERFILE_WINDOWS}} -t ${{env.TAG}} --build-arg BASE_IMAGE_TAG=lts-windowsservercore-1809 .
        
    - name: Push the docker image
      run: |
        docker push ${{env.TAG}}
        
        
  manifest:
    needs: [setup, rocky-image, windows-11-image, windows-compat-image]
    runs-on: ubuntu-latest
    env:
      IMAGE1: ${{ needs.setup.outputs.ROCKY_IMAGE_TAG }}
      IMAGE2: ${{ needs.setup.outputs.WINDOWS_IMAGE_TAG }}
      IMAGE3: ${{ needs.setup.outputs.WINDOWS_COMPAT_IMAGE_TAG }}
      PUB: ${{ needs.setup.outputs.PUBLIC_IMAGE_TAG }}
    steps:
    - name: Print env
      run: |
        echo IMAGE1=${{env.IMAGE1}}
        echo IMAGE2=${{env.IMAGE2}}
        echo IMAGE3=${{env.IMAGE3}}
        echo PUB=${{env.PUB}}
        
    - name: Checkout main
      uses: actions/checkout@v4
      
    - name: Login to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}
          
    - name: Create a new manifest
      run: |
        docker manifest create ${{env.PUB}} --amend ${{env.IMAGE1}} --amend ${{env.IMAGE2}} --amend ${{env.IMAGE3}}
        
    - name: Push the new manifest
      run: |
        docker manifest push ${{env.PUB}}
        
    - name: Create and push manifest latest if selected
      if: env.TAG_LATEST != 'false'
      run: |
        docker manifest create $PUBLIC_IMAGE_TAG_LATEST --amend $IMAGE1 --amend $IMAGE2 --amend $IMAGE3
        docker manifest push $PUBLIC_IMAGE_TAG_LATEST