docker-compose.yml

version: "3.9"

services:
  app:
    build:
      context: .
    ports:
      - "8000:8000"
    volumes:
      - .:/app
    command: >
     sh -c  " python manage.py runserver 0.0.0.0:8000"
    environment:
      - DB1_HOST=db1
      - DB2_HOST=db2
      - DB3_HOST=db3
      - DB_USER=habib
      - DB_PASSWORD=habib
      - DB_NAME=habib
    depends_on:
      - db1
      - db2
      - db3

  db1:
    image: postgres:13-alpine
    volumes:
      - dev-db-data1:/var/lib/postgresql/data
    environment:
      - POSTGRES_USER=habib
      - POSTGRES_PASSWORD=habib
      - POSTGRES_DB=habib
    ports:
      - "5432:5432"

  db2:
    image: postgres:13-alpine
    volumes:
      - dev-db-data2:/var/lib/postgresql/data
    environment:
      - POSTGRES_USER=habib
      - POSTGRES_PASSWORD=habib
      - POSTGRES_DB=habib_2
    ports:
      - "5433:5432"

  db3:
    image: postgres:13-alpine
    volumes:
      - dev-db-data3:/var/lib/postgresql/data
    environment:
      - POSTGRES_USER=habib
      - POSTGRES_PASSWORD=habib
      - POSTGRES_DB=habib_3
    ports:
        - "5434:5432"

  pgadmin:
      image: dpage/pgadmin4
      environment:
        - PGADMIN_DEFAULT_EMAIL=ahmed7abib007@gmail.com
        - PGADMIN_DEFAULT_PASSWORD=habib
      ports:
        - "5050:80"

volumes:
  dev-db-data1:
  dev-db-data2:
  dev-db-data3: