Postgres and Pgadmin4 with volumes

docker-compose.yml

version: '2'

volumes:
  db_data:
    driver: local
  pgadmin_data:
    driver: local

services:
  db:
    restart: always
    image: postgres
    environment:
      - POSTGRES_USER=dev
      - POSTGRES_PASSWORD=dev
      - POSTGRES_DB=dev
    ports:
      - '5432:5432'
    volumes:
      - db_data:/var/lib/postgresql/data

  pgadmin:
    restart: always
    image: thajeztah/pgadmin4
    ports:
      - '5050:5050'
    volumes:
      - pgadmin_data:/pgadmin
    depends_on:
      - 'db'