假设这个docker-compose文件定义了一个Spring Boot服务、一个Redis实例和一个MySQL数据库，并配置了它们之间的网络连接和端口映射

# docker-compose文件版本号，有v1、v2c和v3等版本
version: "3.9"

# 配置各个容器服务
services:
  #新建centos、redis和mysql三个容器实例
  centos:
    image: centos:7
    container_name: centos  # 容器名称，如果不指定，会生成一个服务名加上前缀的容器名
    ports:
      - "6001:6001"
    volumes:
      - /app/centos:/data
    networks:
      - springboot_network
    depends_on:  # 配置该容器服务所依赖的容器服务
      - redis
      - mysql
    command: /bin/bash -c "while true; do sleep 1000; done"

  redis:
    image: redis:6.0.8
    ports:
      - "6379:6379"
    volumes:
      - /app/redis/redis.conf:/etc/redis/redis.conf
      - /app/redis/data:/data
    networks:
      - springboot_network
    command: redis-server /etc/redis/redis.conf

  mysql:
    image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: '123456'
      MYSQL_ALLOW_EMPTY_PASSWORD: 'no'
      MYSQL_DATABASE: 'db_springboot'
      MYSQL_USER: 'springboot'
      MYSQL_PASSWORD: 'springboot'
    ports:
      - "3306:3306"
    volumes:
      - /app/mysql/db:/var/lib/mysql
      - /app/mysql/conf/my.cnf:/etc/my.cnf
      - /app/mysql/init:/docker-entrypoint-initdb.d
    networks:
      - springboot_network
    command: --default-authentication-plugin=mysql_native_password # 解决外部无法访问

networks:
  # 创建 springboot_network 网桥网络
  springboot_network: