qmemory/deployment/docker-compose.yml

A comprehensive production-ready Node.js utility library with MongoDB document operations, user ownership enforcement, Express.js HTTP utilities, environment-aware logging, and in-memory storage. Features 96%+ test coverage with comprehensive error handli

version: '3.8' # docker compose specification version

services:
  app:
    build: . # build app Docker image from local Dockerfile
    ports:
      - "3000:3000" # map host port to container port
    environment:
      - NODE_ENV=production # run in production mode
      - MONGODB_URI=mongodb://mongo:27017/qmemory # database connection
      - PORT=3000 # app listening port
    depends_on:
      - mongo # wait for database container
    restart: unless-stopped # keep app running if it crashes
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3000/health"] # call health endpoint
      interval: 30s # run check every 30s
      timeout: 10s # fail if response takes longer than 10s
      retries: 3 # mark container unhealthy after 3 failures
      start_period: 40s # allow app 40s to start before checks

  mongo:
    image: mongo:6.0 # official MongoDB image version 6
    ports:
      - "27017:27017" # expose database port on host
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin # admin user for initialization
      - MONGO_INITDB_ROOT_PASSWORD=password # admin password
      - MONGO_INITDB_DATABASE=qmemory # default database for the app
    volumes:
      - mongo_data:/data/db # persist database data
      - ./deployment/init-mongo.js:/docker-entrypoint-initdb.d/init-mongo.js:ro # seed database indexes
    restart: unless-stopped # keep mongo running if it crashes

volumes:
  mongo_data: # named volume for persistent database storage