秒级搭建MySQL数据库服务，太香了

需求
在一些项目现场，很多时候，都是缺少专门的数据库运维人员的，但是开发人员开发项目，又需要用到MySQL数据库服务器，而且不同的项目的数据库又要分开

解决方案
对于非数据库运维人员，安装MySQL数据库有一定的难度，所以在这里推荐用docker来搭建MySQL数据库服务。这种方案门槛低，对于非数据库专业人员也能秒级搭建好一条MySQL服务。

搭建步骤
拉取MySQL数据库镜像

docker pull mysql:latest

直接执行这个命令，意思是拉取最新的镜像，但是实际项目可能需要制定的数据库版本，所以这里需要制定标签，拉取需要的镜像

docker pull mysql:5.7.28

创建MySQL容器
拉取好镜像之后，就可以创建2个MySQL容器了，对外访问端口为3306,3307

[root@localhost ~]# docker run --name mysql5.7.28_3306 -e MYSQL_ROOT_PASSWORD=root -p 3306:3306 -d -it mysql:5.7.28423e39a1c8669a53942aed14002102adbb8871c47edfbaa67825691eb16d0d45[root@localhost ~]# docker run --name mysql5.7.28_3307 -e MYSQL_ROOT_PASSWORD=root -p 3307:3306 -d -it mysql:5.7.28ff668e421d59b1fef61d58b70532bf87d5915da1c47d63db690857d74d283e12[root@localhost ~]# docker psCONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                               NAMESff668e421d59        mysql:5.7.28        \"docker-entrypoint.s鈥 29 seconds ago       Up 27 seconds       33060/tcp, 0.0.0.0:3307->3306/tcp   mysql5.7.28_3307423e39a1c866        mysql:5.7.28        \"docker-entrypoint.s鈥 About a minute ago   Up About a minute   0.0.0.0:3306->3306/tcp, 33060/tcp   mysql5.7.28_3306

这样2个容器就创建好了，只是用docker ps显示的结果被截断了，不够友好，可以用下面的命令，来展示你需要看到的列信息就好

[root@localhost ~]# docker ps --format \"table {{.ID}}\\t{{.Image}}\\t{{.Names}}\\t{{.Ports}}\\t{{.RunningFor}}\\t{{.Status}}\"CONTAINER ID        IMAGE               NAMES               PORTS                               CREATED              STATUSff668e421d59        mysql:5.7.28        mysql5.7.28_3307    33060/tcp, 0.0.0.0:3307->3306/tcp   About a minute ago   Up About a minute423e39a1c866        mysql:5.7.28        mysql5.7.28_3306    0.0.0.0:3306->3306/tcp, 33060/tcp   2 minutes ago        Up 2 minutes

MySQL服务测试
验证端口

[root@localhost ~]# netstat -an|egrep \"3306|3307\"tcp6       0      0 :::3306                 :::*                    LISTENtcp6       0      0 :::3307                 :::*                    LISTEN

可以看到，3306和3307端口已经开启。

MySQL客户端连接测试

[mysql@localhost ~]$ mysql -uroot -proot -h 192.168.17.128 -P 3306mysql: [Warning] Using a password on the command line interface can be insecure.Welcome to the MySQL monitor.  Commands end with ; or \\g.Your MySQL connection id is 2Server version: 5.7.28 MySQL Community Server (GPL)Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type \'help;\' or \'\\h\' for help. Type \'\\c\' to clear the current input statement.mysql> quitBye[mysql@localhost ~]$[mysql@localhost ~]$ mysql -uroot -proot -h 192.168.17.128 -P 3307mysql: [Warning] Using a password on the command line interface can be insecure.Welcome to the MySQL monitor.  Commands end with ; or \\g.Your MySQL connection id is 2Server version: 5.7.28 MySQL Community Server (GPL)Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or itsaffiliates. Other names may be trademarks of their respectiveowners.Type \'help;\' or \'\\h\' for help. Type \'\\c\' to clear the current input statement.mysql> quit

可以看到，两个MySQL数据库服务已经搭建好了，整个搭建都不到1分钟。