安装篇-安装PostgreSQL

docker-compose.yml

version: '3.1'
services:
  db:
    image: postgres
    restart: always
    environment:
      POSTGRES_PASSWORD: 123456
    ports:
      - 5432:5432
    volumes:
      - ./data:/var/lib/postgresql/data

  adminer:
    image: adminer
    restart: always
    ports:
      - 54321:8080