docker-compose.yaml

services:
  mongodb:
    # To create this service, Compose will pull the mongo
    image: mongo:7.0.4
    # a custom name for the MongoDB container
    container_name: mongo
    # Configures the container to restart automatically.
    restart: always
    # Volumes to persist data and initialize MongoDB
    volumes:
      # The named volume dbdata will persist the data stored in Mongo’s default data directory, /data/db.
      # This will ensure that you don’t lose data in cases where you stop or remove containers.
      - dbdata:/data/db
    healthcheck:
      test:
        ['CMD', 'mongosh', '--quiet', '--eval', "db.adminCommand('ping').ok"]
      interval: 1m
      timeout: 10s
      retries: 3
      start_period: 30s

  # To build node image
  api:
    # This defines the configuration options, including the context and dockerfile,
    # that will be applied when Compose builds the application image.
    build:
      # This defines the build context for the image build
      context: ./
    # This is the name we’ll use to refer to this image in Docker commands or to push to a Docker registry.
    image: sainiabhishek/nodejs_auth-api:1.1.0
    container_name: api
    env_file: .env
    restart: always
    environment:
      MONGO_URI: mongodb://mongo:27017/
      MONGO_DB_HOST: mongo
      TOKEN_ISSUER: api.dev.saini.com
      TOKEN_AUDIENCE: dev.saini.com
      FRONTEND_RESET_URL: http://localhost:3000/
      CORS_URL: http://localhost:3000
      MAILTRAP_EMAIL_ENV: testing
    ports:
      - ${PORT}:3001
    depends_on:
      mongodb:
        condition: service_healthy
    healthcheck:
      test: ['CMD', 'curl', '-f', 'http://localhost:3001/api/v1/healthcheck']
      interval: 1m
      timeout: 10s
      retries: 3
      start_period: 30s

# Our top-level volumes key defines the volumes dbdata.
# When Docker creates volumes, the contents of the volume are stored in a part of the host filesystem, /var/lib/docker/volumes/, that’s managed by Docker.
# The contents of each volume are stored in a directory under /var/lib/docker/volumes/ and get mounted to any container that uses the volume.
# In this way, the data that our users will create will persist in the dbdata volume even if we remove and recreate the db container.
volumes:
  dbdata: