render.yaml

services:
  - type: web
    name: fastapi-rag-gateway
    env: python
    plan: free  # Explicitly use free tier (512MB RAM)
    buildCommand: pip install --no-cache-dir -r requirements.txt
    startCommand: uvicorn main:app --host 0.0.0.0 --port $PORT --workers 1
    envVars:
      - key: OPENAI_API_KEY
        sync: false
      - key: OPENROUTER_API_KEY
        sync: false
      - key: RAG_LLM_MODEL
        value: deepseek/deepseek-chat
      - key: RAG_LLM_BASE_URL
        value: https://openrouter.ai/api/v1
      - key: UVICORN_PORT
        value: 8000
      - key: PYTHONUNBUFFERED
        value: 1