services:
  web:
    build: .
    ports:
      - "3000:3000"
    # files are put in here
    volumes:
      - .:/usr/src/app
      - ./node_modules:/usr/src/app/node_modules
    command: ["yarn", "dev"]

  # Database: how we want to create the database
  db:
    # Image of postgres in 13th version
    image: postgres:13
    environment: #secret
      POSTGRES_USER: ${DB_USER}
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: ${DB_NAME}
    ports: #internally the port is 5432, but we want to use 5432 locally
      - "5432:5432"
    # create a file to store stuff, store inside "data" folder
    volumes:
      - data:/var/lib/postgresql/data

  # PGAdmin: visualize postgres database
  pgadmin:
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL}
      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD}
    ports:
      # our local port is 3001, but the container port is 80
      - "3001:80"
    # creating a folder called pgadmin to store the pgadmin files
    volumes:
      - pgadmin:/root/.pgadmin
    depends_on:
      - db

# tell docker to create something called data (refer to above) and store all the postgres data in it
volumes:
  data:
  pgadmin: