reusable-workflow-packer-image.yml

name: Reusable workflow - build packer VM

on:
  workflow_call:
    inputs:
      image-name:
        required: true
        type: string
    secrets:
      AZURE_CLIENT_ID:
        required: true
      AZURE_CLIENT_SECRET:
        required: true
      AZURE_TENANT_ID:
        required: true
      AZURE_SUBSCRIPTION_ID:
        required: true

jobs:
  packer-build:
    runs-on: self-hosted

    env:
      AZ_CLI_VERSION: 2.64.0
      PACKER_VERSION: 1.9.4

      AZURE_LOCATION: ${{ vars.AZURE_LOCATION }}
      AZURE_RESOURCE_GROUP:  ${{ vars.AZURE_RESOURCE_GROUP }}
      AZURE_ACG:  ${{ vars.AZURE_ACG }}
      AZURE_CREDENTIALS: |
        {
          "clientId": "${{ secrets.AZURE_CLIENT_ID }}",
          "clientSecret": "${{ secrets.AZURE_CLIENT_SECRET }}",
          "subscriptionId": "${{ secrets.AZURE_SUBSCRIPTION_ID }}",
          "tenantId": "${{ secrets.AZURE_TENANT_ID }}"
        }

      IMAGE_NAME: ${{ inputs.image-name }}
      IMAGE_PUBLISHER: "wp10-image-factory-user"
      IMAGE_OFFER: "wp10-user-packer"
      IMAGE_SKU: "v1"
      IMAGE_OS_TYPE: "linux"
      IMAGE_VERSION: "1.0.${{ github.run_number }}"

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          repository: comsysto/wp10-image-factory

      - name: Checkout User Repository
        uses: actions/checkout@v4
        with:
          path: user-repo

      - name: Azure Login
        uses: azure/login@v2
        with:
          creds: ${{ env.AZURE_CREDENTIALS }}

      - name: Create Azure Image Definition
        run: |
          set +e
          az sig image-definition show \
            --resource-group "$AZURE_RESOURCE_GROUP" \
            --gallery-name "$AZURE_ACG" \
            --gallery-image-definition "$IMAGE_NAME" \
            --query "name" -o tsv
          az_exit_code=$?
          set -e
          if [ $az_exit_code -eq 3 ]; then
            echo "Image definition does not exist. Creating it..."
            az sig image-definition create \
              --resource-group "$AZURE_RESOURCE_GROUP" \
              --gallery-name "$AZURE_ACG" \
              --gallery-image-definition "$IMAGE_NAME" \
              --publisher "$IMAGE_PUBLISHER" \
              --offer "$IMAGE_OFFER" \
              --sku "$IMAGE_SKU" \
              --os-type "$IMAGE_OS_TYPE"
          else
            echo "Image definition '$IMAGE_NAME' already exists."
          fi

      - name: Packer Init
        run: |
          ls -lha user-repo/packer/example-linux
          cp user-repo/packer/example-linux/user-setup-vm.sh images/packer/user-packer/scripts/setup-vm.sh
          ls -lha images/packer/user-packer
          packer init images/packer/user-packer

      - name: Packer Build
        run: |
          packer build \
            -var "client_id=${{ secrets.AZURE_CLIENT_ID }}" \
            -var "client_secret=${{ secrets.AZURE_CLIENT_SECRET }}" \
            -var "tenant_id=${{ secrets.AZURE_TENANT_ID }}" \
            -var "subscription_id=${{ secrets.AZURE_SUBSCRIPTION_ID }}" \
            -var "gallery_image_name=${{ env.IMAGE_NAME }}" \
            -var "resource_group=${{ env.AZURE_RESOURCE_GROUP }}" \
            -var "gallery_name=${{ env.AZURE_ACG }}" \
            -var "gallery_image_version=${{ env.IMAGE_VERSION }}" \
            -var "location=${{ env.AZURE_LOCATION }}" \
            images/packer/user-packer