render.yaml

# This is the instruction manual for deploying on Render.
services:
  # Service 1: The Redis instance for Celery
  - type: redis
    name: redis-cache
    plan: free
    # This is required for security on Render's free plan
    ipAllowList: [] # Allows internal connections, blocks public

  # Service 2: The Backend FastAPI Web Server
  - type: web
    name: backend-api
    plan: free
    env: docker
    # Tell Render where to find the Dockerfile and the build context
    dockerfilePath: ./backend/Dockerfile
    dockerContext: .
    # Render's free web services need a health check on port 10000
    healthCheckPath: /
    # We need to explicitly tell Render which port our service is on
    envVars:
      - key: PORT
        value: 10000
      - key: DATABASE_URL
        fromDatabase:
          name: neon-database # We will create this name in the Render UI
          property: connectionString
      - key: CELERY_BROKER_URL
        fromService:
          type: redis
          name: redis-cache
          property: connectionString
      - key: CELERY_RESULT_BACKEND
        fromService:
          type: redis
          name: redis-cache
          property: connectionString
      - key: GOOGLE_API_KEY
        sync: false # Set this secret manually in the Render UI

  # Service 3: The Celery Background Worker
  - type: worker
    name: celery-worker
    plan: free
    env: docker
    dockerfilePath: ./backend/Dockerfile
    dockerContext: .
    # This command overrides the CMD in the Dockerfile to start the worker instead
    dockerCommand: "python -m celery -A celery_worker.celery worker --loglevel=info"
    envVars:
      - key: DATABASE_URL
        fromDatabase:
          name: neon-database # Must match the name below
          property: connectionString
      - key: CELERY_BROKER_URL
        fromService:
          type: redis
          name: redis-cache
          property: connectionString
      - key: CELERY_RESULT_BACKEND
        fromService:
          type: redis
          name: redis-cache
          property: connectionString
      - key: GOOGLE_API_KEY
        sync: false