deploy-api.yml

name: Deploy API to Cloud Run

on:
  workflow_dispatch:
  push:
    branches: [main]
    paths:
      - "api/**"
      - "docker/Dockerfile.backend"
      - ".github/workflows/deploy-api.yml"

concurrency:
  group: deploy-api-${{ github.ref }}
  cancel-in-progress: false

env:
  REGION: us-central1
  GAR_REPO: us-central1-docker.pkg.dev/gitunderstand/bettercodewiki
  SERVICE_NAME: gitunderstand-api

jobs:
  build-and-deploy:
    name: Build & Deploy API
    runs-on: ubuntu-latest

    permissions:
      contents: read
      id-token: write

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

      - name: Authenticate to Google Cloud
        id: auth
        uses: google-github-actions/auth@v2
        with:
          workload_identity_provider: "projects/${{ secrets.GCP_PROJECT_NUMBER }}/locations/global/workloadIdentityPools/github-pool/providers/github-provider"
          service_account: "deploy-sa@gitunderstand.iam.gserviceaccount.com"

      - name: Set up Cloud SDK
        uses: google-github-actions/setup-gcloud@v2

      - name: Configure Docker for Artifact Registry
        run: gcloud auth configure-docker us-central1-docker.pkg.dev --quiet

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push API image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: docker/Dockerfile.backend
          push: true
          tags: |
            ${{ env.GAR_REPO }}/api:${{ github.sha }}
            ${{ env.GAR_REPO }}/api:latest
          cache-from: type=gha,scope=api
          cache-to: type=gha,mode=max,scope=api

      - name: Deploy to Cloud Run
        uses: google-github-actions/deploy-cloudrun@v2
        with:
          service: ${{ env.SERVICE_NAME }}
          region: ${{ env.REGION }}
          image: ${{ env.GAR_REPO }}/api:${{ github.sha }}
          flags: |
            --allow-unauthenticated
            --port=8001
            --cpu=1
            --memory=2Gi
            --min-instances=0
            --max-instances=3
            --service-account=runtime-sa@gitunderstand.iam.gserviceaccount.com
            --set-env-vars=ENVIRONMENT=production,WIKI_STORAGE_TYPE=gcs,GCS_BUCKET=gitunderstand-wikicache,DEEPWIKI_EMBEDDER_TYPE=google
            --set-secrets=GOOGLE_API_KEY=google-api-key:latest,OPENAI_API_KEY=openai-api-key:latest,CLERK_SECRET_KEY=clerk-secret-key:latest,SUPABASE_URL=supabase-url:latest,SUPABASE_SERVICE_ROLE_KEY=supabase-service-role-key:latest

      - name: Verify deployment health
        run: |
          URL=$(gcloud run services describe ${{ env.SERVICE_NAME }} --region ${{ env.REGION }} --format 'value(status.url)')
          for i in 1 2 3 4 5; do
            STATUS=$(curl -s -o /dev/null -w "%{http_code}" "$URL/health" || echo "000")
            if [ "$STATUS" = "200" ]; then echo "Health check passed"; exit 0; fi
            echo "Attempt $i: status=$STATUS, retrying..."
            sleep 10
          done
          echo "Health check failed after 5 attempts"
          exit 1

      - name: Show deployment URL
        run: |
          echo "## API Deployment" >> $GITHUB_STEP_SUMMARY
          echo "Image: \`${{ env.GAR_REPO }}/api:${{ github.sha }}\`" >> $GITHUB_STEP_SUMMARY
          URL=$(gcloud run services describe ${{ env.SERVICE_NAME }} --region ${{ env.REGION }} --format 'value(status.url)')
          echo "URL: $URL" >> $GITHUB_STEP_SUMMARY

      - name: Notify Slack on failure
        if: failure()
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
        run: |
          [ -z "$SLACK_WEBHOOK_URL" ] && exit 0
          curl -s -X POST "$SLACK_WEBHOOK_URL" \
            -H 'Content-Type: application/json' \
            -d '{
              "blocks": [
                {
                  "type": "header",
                  "text": {"type": "plain_text", "text": "API Deploy Failed", "emoji": true}
                },
                {
                  "type": "section",
                  "fields": [
                    {"type": "mrkdwn", "text": "*Service:*\ngitunderstand-api"},
                    {"type": "mrkdwn", "text": "*Commit:*\n`${{ github.sha }}`"},
                    {"type": "mrkdwn", "text": "*Triggered by:*\n${{ github.actor }}"},
                    {"type": "mrkdwn", "text": "*Branch:*\n`${{ github.ref_name }}`"}
                  ]
                },
                {
                  "type": "actions",
                  "elements": [
                    {
                      "type": "button",
                      "text": {"type": "plain_text", "text": "View Run"},
                      "url": "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
                    }
                  ]
                }
              ]
            }'