packer-build-if-vm.yml

name: Build Image Factory VM

on:
  push:
    paths:
      - ".github/workflows/packer-build-if-vm.yml"
      - "images/packer/image-factory-vm/**"
  workflow_dispatch:

jobs:

  packer-build:
    runs-on: ubuntu-latest

    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: "image-factory-vm"
      IMAGE_PUBLISHER: "wp10-image-factory"
      IMAGE_OFFER: "wp10-image-factory-vm"
      IMAGE_SKU: "v1"
      IMAGE_OS_TYPE: "linux"
      IMAGE_VERSION: "${{ github.run_number }}"

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4

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

      - name: Create Azure Image Definition
        uses: azure/cli@v2
        with:
          azcliversion: ${{ env.AZ_CLI_VERSION }}
          inlineScript: |
            set +e
            az sig image-definition show \
              --resource-group "$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: Template Packer vars file
        uses: cuchi/jinja2-action@v1.2.2
        with:
          template: images/packer/image-factory-vm/values.auto.pkrvars.hcl.j2
          output_file: images/packer/image-factory-vm/values.auto.pkrvars.hcl

      - name: Setup Packer
        uses: hashicorp/setup-packer@main
        with:
          version: ${{ env.PACKER_VERSION }}
      
      - name: Packer Init
        run: packer init images/packer/image-factory-vm

      - 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 }}" \
            images/packer/image-factory-vm