docker-compose.yml

version: "3.8"

services:
  database:
    container_name: db
    image: postgres:14-alpine
    restart: always
    user: postgres  # importante definir o usuário
    volumes:
      - pgdata:/var/lib/postgresql/data
    environment:
      - LC_ALL=C.UTF-8
      - POSTGRES_PASSWORD=postgres  # senha padrão
      - POSTGRES_USER=postgres  # usuário padrão
      - POSTGRES_DB=db  # necessário porque foi configurado assim no settings
    ports:
      - 5433:5432  # repare na porta externa 5433
    networks:
      - postgres

  pgadmin:
    container_name: pgadmin
    image: dpage/pgadmin4
    restart: unless-stopped
    volumes:
       - pgadmin:/var/lib/pgadmin
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@admin.com
      PGADMIN_DEFAULT_PASSWORD: admin
      PGADMIN_CONFIG_SERVER_MODE: 'False'
    ports:
      - 5050:80
    networks:
      - postgres

volumes:
  pgdata:  # mesmo nome do volume externo definido na linha 10
  pgadmin:

networks:
  postgres: