docker-compose for postgres and pgadmin

docker-compose.yaml

version: "3.7"

services:
  postgres:
    image: postgres:13.1
    environment:
      POSTGRES_PASSWORD: awesome_password
    ports:
      - "5432:5432"
    volumes:
      - postgres:/var/lib/postgresql/data

  pgadmin:
    image: dpage/pgadmin4:5.0
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@example.com
      PGADMIN_DEFAULT_PASSWORD: SuperSecret
      GUNICORN_ACCESS_LOGFILE: /dev/null
    ports:
      - "4000:80"
    depends_on:
      - postgres
    volumes:
      - pgadmin:/var/lib/pgadmin

volumes:
  postgres:
  pgadmin: