pkr-base-nomadpack.yml

name: Build Base Images - Nomad Pack

on:
  workflow_dispatch:
    inputs:
      singleBuild:
        type: choice
        description: image override
        required: false
        options:
          - all
          - rhel
          - ubuntu
          - windows
      platform:
          type: choice
          description: platform override
          required: false
          options:
            - all
            - vsphere
            - aws
            - azure

env:
  DEFAULT_IMAGES: windows, rhel, ubuntu
  DEFAULT_PLATFORMS: aws, azure, vsphere
  LAYER: base-images
  BUILDPATH: packer/builds/image-factory

  #Datadog Environment Variables
  DD_API_KEY: ${{ secrets.DD_API_KEY }}

  #HCP Environment Variables
  HCP_CLIENT_ID: ${{ secrets.HCP_CLIENT_ID}}
  HCP_CLIENT_SECRET: ${{ secrets.HCP_CLIENT_SECRET}}
  HCP_PROJECT_ID: ${{ secrets.HCP_PROJECT_ID}}
  

  #vSphere Environment Variables
  VSPHERE_SERVER  : ${{ secrets.VSPHERE_SERVER }}
  VSPHERE_USER: ${{ secrets.VSPHERE_USER }}
  VSPHERE_PASSWORD: ${{ secrets.VSPHERE_PASSWORD }}

  #AWS Environment Variables
  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
  AWS_REGION: us-east-2

  #Azure Environment Variables
  ARM_CLIENT_ID: ${{ secrets.ARM_CLIENT_ID }}
  ARM_CLIENT_SECRET: ${{ secrets.ARM_CLIENT_SECRET }}
  ARM_SUBSCRIPTION_ID: ${{ secrets.ARM_SUBSCRIPTION_ID }}
  ARM_TENANT_ID: ${{ secrets.ARM_TENANT_ID }}
   
jobs:
  selectimages:
    runs-on: "ubuntu-latest"
    steps:
      - uses: FraBle/clean-after-action@v1.2.1

      - name: get-images
        id: get-images
        run: |
          if [[ "${{ inputs.singleBuild }}" != "all" ]] && [[ -n "${{ github.event.inputs.singleBuild }}" ]] ; then
            export IMAGES=$(echo ${{ inputs.singleBuild }} | jq -R '["\(.)"]')
            echo "images_out"=$IMAGES""
            echo "images_out"=$IMAGES"" >> $GITHUB_OUTPUT
          else
            export IMAGES=$(echo $DEFAULT_IMAGES | jq -R 'split(", ")')
            echo "images_out"=$IMAGES""
            echo "images_out"=$IMAGES"" >> $GITHUB_OUTPUT
          fi

          if [[ "${{ inputs.platform }}" != "all" ]] && [[ -n "${{ github.event.inputs.platform }}" ]] ; then
            export PLATFORMS=$(echo ${{ inputs.platform }} | jq -R '["\(.)"]')
            echo "platforms_out"=$PLATFORMS""
            echo "platforms_out"=$PLATFORMS"" >> $GITHUB_OUTPUT
          else
            export PLATFORMS=$(echo $DEFAULT_PLATFORMS | jq -R 'split(", ")')
            echo "platforms_out"=$PLATFORMS""
            echo "platforms_out"=$PLATFORMS"" >> $GITHUB_OUTPUT
          fi
    outputs:
      images: ${{ steps.get-images.outputs.images_out }}
      platforms: ${{ steps.get-images.outputs.platforms_out }}

  scale:
    runs-on: [listener, "${{ matrix.platform}}"]
    needs: [selectimages]
    strategy:
      fail-fast: false
      matrix:
        image: ${{fromJson(needs.selectimages.outputs.images)}}
        platform: ${{fromJson(needs.selectimages.outputs.platforms)}}
    steps:
      - uses: FraBle/clean-after-action@v1.2.1

      - name: Create Nomad Job
        run: |
          nomad-pack run /nomad-packs/github_actions_runner/. \
          --name "${{ matrix.platform }}-${{ matrix.image }}-${{ github.run_id }}" \
          --var=job_name="${{ matrix.platform }}-${{ matrix.image }}-${{ github.run_id }}"

  build:
    runs-on: ["${{ matrix.platform }}-${{ matrix.image }}-${{ github.run_id }}"]
    needs: [selectimages,scale]
    env: 
      HCP_PACKER_BUCKET: ${{matrix.platform}}-${{matrix.image}}
      PLATFORM: ${{matrix.platform}}
    strategy:
      fail-fast: false
      matrix:
        image: ${{fromJson(needs.selectimages.outputs.images)}}
        platform: ${{fromJson(needs.selectimages.outputs.platforms)}}
    steps:
      - uses: FraBle/clean-after-action@v1.2.1

      - name: Setup `packer`
        uses: hashicorp/setup-packer@main
        id: setup
        with:
          version: latest
      
      - name: Checkout code
        uses: actions/checkout@v4.1.1

      - name: Image Builder
        run: |
          packer init -force -var-file=${BUILDPATH}/${LAYER}/${{matrix.image}}/variables/example.pkrvars.hcl ${BUILDPATH}/${LAYER}/${{matrix.image}}/.
          packer build -force -var-file=${BUILDPATH}/${LAYER}/${{matrix.image}}/variables/example.pkrvars.hcl ${BUILDPATH}/${LAYER}/${{matrix.image}}/.

  cleanup:
    runs-on: [listener, "${{ matrix.platform}}"]
    if: always()
    needs: [selectimages,scale,build]
    strategy:
      fail-fast: false
      matrix:
        image: ${{fromJson(needs.selectimages.outputs.images)}}
        platform: ${{fromJson(needs.selectimages.outputs.platforms)}}
    steps:
      - uses: FraBle/clean-after-action@v1.2.1

      - name: Destroy Nomad Job
        run: |
          nomad-pack stop \
          /nomad-packs/github_actions_runner/. \
          --name "${{ matrix.platform }}-${{ matrix.image }}-${{ github.run_id }}" \
          --var=job_name="${{ matrix.platform }}-${{ matrix.image }}-${{ github.run_id }}" \
          --purge