deploy.yml

name: Backend Deploy

on:
  push:
    branches:
      - main
    tags:
      - 'v*'
  workflow_dispatch:

env:
  IMAGE_NAME: git-ranker

jobs:
  docker:
    name: Build & Push Docker Image
    runs-on: ubuntu-latest

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

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

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,prefix=
            type=semver,pattern={{version}}

      - name: Build and Push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  deploy:
    name: Deploy to Production
    runs-on: ubuntu-latest
    needs: docker

    if: github.ref == 'refs/heads/main' || github.event_name == 'workflow_dispatch'

    steps:
      - name: Deploy via SSH
        uses: appleboy/ssh-action@v1.0.3
        with:
          host: ${{ secrets.SERVER_HOST }}
          username: ${{ secrets.SERVER_USER }}
          key: ${{ secrets.SERVER_SSH_KEY }}
          script: |
            echo "=========================================="
            echo "Backend Deployment Started"
            echo "Time: $(date)"
            echo "=========================================="

            cd ${{ secrets.DEPLOY_PATH }}

            echo "[1/5] Pulling latest image..."
            docker compose pull git-ranker-api

            echo "[2/5] Restarting container..."
            docker compose up -d --no-deps --force-recreate git-ranker-api

            echo "[3/5] Waiting for Docker health status..."
            for i in {1..12}; do
              HEALTH_STATUS=$(docker inspect --format='{{if .State.Health}}{{.State.Health.Status}}{{else}}unknown{{end}}' git-ranker-api 2>/dev/null || echo "missing")
              echo "Attempt $i/12 - container health: $HEALTH_STATUS"

              if [ "$HEALTH_STATUS" = "healthy" ]; then
                break
              fi

              if [ "$HEALTH_STATUS" = "unhealthy" ] || [ "$i" -eq 12 ]; then
                echo "Container health check failed."
                docker logs --tail 200 git-ranker-api || true
                exit 1
              fi

              sleep 10
            done

            echo "[4/5] Verifying actuator health endpoint..."
            HEALTH_URL="http://127.0.0.1:9090/actuator/health"
            RESPONSE=$(curl -sS --connect-timeout 5 --max-time 10 -w '\n%{http_code}' "$HEALTH_URL" || true)
            HTTP_STATUS=$(printf '%s' "$RESPONSE" | tail -n1)
            RESPONSE_BODY=$(printf '%s' "$RESPONSE" | sed '$d')

            if [ "$HTTP_STATUS" != "200" ] || ! echo "$RESPONSE_BODY" | grep -Eq '"status"[[:space:]]*:[[:space:]]*"UP"'; then
              echo "Actuator health check failed. HTTP=$HTTP_STATUS, body=$RESPONSE_BODY"
              docker logs --tail 200 git-ranker-api || true
              exit 1
            fi

            echo "[5/5] Cleaning up old images..."
            docker image prune -f

            echo "=========================================="
            echo "Backend Deployment Completed!"
            echo "=========================================="