version: '3.8'

# 用来构建db和mq，因为这两个组件几乎不会有改动，所以单独抽离出来
# db会默认初始化一些演示的数据, sql文件在db/init.sql

x-env-db: &env_db
  MYSQL_DATABASE: ${MYSQL_DATABASE}
  MYSQL_USER: ${MYSQL_USER}
  MYSQL_PASSWORD: ${MYSQL_PASSWORD}
  MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
  MYSQL_HOST: ${MYSQL_HOST:-db}
  MYSQL_PORT: ${MYSQL_PORT:-3306}

x-env-mq: &env_mq
  RABBITMQ_DEFAULT_USER: ${RABBITMQ_DEFAULT_USER}
  RABBITMQ_DEFAULT_PASS: ${RABBITMQ_DEFAULT_PASS}
  MQ_PORT: ${MQ_PORT}
  MQ_HOST: ${MQ_HOST:-mq}
  MQ_ADMIN_PORT: ${MQ_ADMIN_PORT}
  MQ_VHOST: ${MQ_VHOST:-/}

services:
  db:
    #image: mysql:8.0.21
    image: mariadb:10.6.1
    # privileged: true
    environment:
      # 设置默认数据库和root默认密码,如果宿主机中/var/lib/mysql已经存在,这两个设置都不会生效
      <<: *env_db
    volumes:
#      - "/var/lib/mysql:/var/lib/mysql" # 挂载宿主机的mysql数据到docker中
      - ./db/my.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf
      - ./db:/docker-entrypoint-initdb.d/:ro
    # 端口映射,格式 宿主机端口:容器端口
    ports:
      - "${MYSQL_PORT_OUT}:3306"
    restart: always
    command: --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci


  mq:
    image: rabbitmq:management-alpine
    environment:
      <<: *env_mq
    restart: always
    ports:
      - "${MQ_ADMIN_PORT}:15672"
      - "${MQ_PORT}:5672"