preview-cloudformation-deploy.yml

name: Deploy CloudFormation Stack for Preview Branch

on:
  pull_request:
    types: [opened, reopened]

concurrency:
  group: pr-${{ github.event.pull_request.number }}-deploy-cloudformation

jobs:
  deploy_cloudformation:
    permissions:
      contents: read
      id-token: write
      
    runs-on: blacksmith-2vcpu-ubuntu-2204

    env:
      STACK_NAME: preview-pr-${{ github.event.pull_request.number }}
      STACK_PARAMS: >-
        ParameterKey=LicenseKey,ParameterValue=5a32bd8a-409e-4733-8846-1868c568a813
        ParameterKey=ImageTag,ParameterValue=pr-${{ github.event.pull_request.number }}

    steps:
      - uses: actions/checkout@v4

      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@v4
        with:
          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID_DEVELOPMENT }}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY_DEVELOPMENT }}
          aws-region: ${{ secrets.AWS_REGION }}

      - name: Deploy CloudFormation Stack
        run: |
          # Check if stack exists
          if aws cloudformation describe-stacks --stack-name $STACK_NAME 2>/dev/null; then
            # Update existing stack
            aws cloudformation update-stack \
              --stack-name $STACK_NAME \
              --template-body file://infra/aws-cloudformation/preview.yml \
              --parameters $STACK_PARAMS \
              --capabilities CAPABILITY_IAM \
              --no-fail-on-empty-changeset
          else
            # Create new stack
            aws cloudformation create-stack \
              --stack-name $STACK_NAME \
              --template-body file://infra/aws-cloudformation/preview.yml \
              --parameters $STACK_PARAMS \
              --capabilities CAPABILITY_IAM
            
            # Wait for stack creation to complete
            aws cloudformation wait stack-create-complete --stack-name $STACK_NAME
          fi

      - name: Get Stack Outputs
        id: stack-output
        run: |
          DOMAIN=$(aws cloudformation describe-stacks \
            --stack-name $STACK_NAME \
            --query 'Stacks[0].Outputs[?OutputKey==`DomainRecord`].OutputValue' \
            --output text)
          echo "PREVIEW_URL=https://$DOMAIN" >> $GITHUB_OUTPUT

      - name: Comment Preview URL
        uses: actions/github-script@v7
        with:
          script: |
            const previewUrl = '${{ steps.stack-output.outputs.PREVIEW_URL }}';
            const message = `Preview URL: ${previewUrl}`;
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.name,
              body: message
            });