知识碎片-docker初始化db，自动导入SQL

引言

在写项目https://github.com/WeiXiao-Hyy/mq-eventual-consistency 的README的时候，希望用户能快速部署繁琐的环境依赖，于是写了docker-compose来方便部署，但希望可以一键初始化db，而不是部署mysql之后再手动导入表结构和测试数据。

解决方案

1. 参考了Apoll官方实现，将初始化的sql文件挂载到/docker-entrypoint-initdb.d文件夹下

version: '2.1'

services:
  apollo-quick-start:
    image: nobodyiam/apollo-quick-start
    container_name: apollo-quick-start
    depends_on:
      apollo-db:
        condition: service_healthy
    ports:
      - "8080:8080"
      - "8070:8070"
      - "8090:8090"
    links:
      - apollo-db
    #environment:
      #JAVA_OPTS: '-Xms100m -Xmx1000m -Xmn100m -Xss256k -XX:MetaspaceSize=10m -XX:MaxMetaspaceSize=250m'
      #APOLLO_CONFIG_DB_USERNAME: 'root'
      #APOLLO_CONFIG_DB_PASSWORD: 'apollo'
      #APOLLO_PORTAL_DB_USERNAME: 'root'
      #APOLLO_PORTAL_DB_PASSWORD: 'apollo'

  apollo-db:
    image: mysql:8.0
    container_name: apollo-db
    environment:
      TZ: Asia/Shanghai
      MYSQL_ALLOW_EMPTY_PASSWORD: 'yes'
      #MYSQL_ROOT_PASSWORD: 'apollo'
    healthcheck:
      test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
      interval: 5s
      timeout: 1s
      retries: 10
    depends_on:
      - apollo-dbdata
    ports:
      - "13306:3306"
    # 初始化./sql文件夹下的sql文件
    volumes:
      - ./sql:/docker-entrypoint-initdb.d
    volumes_from:
      - apollo-dbdata

  apollo-dbdata:
    image: alpine:latest
    container_name: apollo-dbdata
    volumes:
      - /var/lib/mysql

2. 同时注意需要添加创建数据库等操作

# Create Database
# ------------------------------------------------------------
CREATE DATABASE IF NOT EXISTS ApolloPortalDB DEFAULT CHARACTER SET = utf8mb4;

Use ApolloPortalDB;

# Create Table
DROP TABLE IF EXISTS `App`;

CREATE TABLE `App` (
  `Id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '主键',
  `AppId` varchar(64) NOT NULL DEFAULT 'default' COMMENT 'AppID',
  `Name` varchar(500) NOT NULL DEFAULT 'default' COMMENT '应用名',
  `OrgId` varchar(32) NOT NULL DEFAULT 'default' COMMENT '部门Id',
  `OrgName` varchar(64) NOT NULL DEFAULT 'default' COMMENT '部门名字',
  `OwnerName` varchar(500) NOT NULL DEFAULT 'default' COMMENT 'ownerName',
  `OwnerEmail` varchar(500) NOT NULL DEFAULT 'default' COMMENT 'ownerEmail',
  `IsDeleted` bit(1) NOT NULL DEFAULT b'0' COMMENT '1: deleted, 0: normal',
  `DeletedAt` BIGINT(20) NOT NULL DEFAULT '0' COMMENT 'Delete timestamp based on milliseconds',
  `DataChange_CreatedBy` varchar(64) NOT NULL DEFAULT 'default' COMMENT '创建人邮箱前缀',
  `DataChange_CreatedTime` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
  `DataChange_LastModifiedBy` varchar(64) DEFAULT '' COMMENT '最后修改人邮箱前缀',
  `DataChange_LastTime` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '最后修改时间',
  PRIMARY KEY (`Id`),
  UNIQUE KEY `UK_AppId_DeletedAt` (`AppId`,`DeletedAt`),
  KEY `DataChange_LastTime` (`DataChange_LastTime`),
  KEY `IX_Name` (`Name`(191))
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='应用表';