docker安装mysql5.7

docker pull mysql:5.7
docker run -p 3306:3306 --name mysql \
-v /mydata/mysql/log:/var/log/mysql \
-v /mydata/mysql/data:/var/lib/mysql \
-v /mydata/mysql/conf:/etc/mysql \
-e MYSQL_ROOT_PASSWORD=123456 \
-d mysql:5.7

参数说明: 
    -p 3306:3306 将容器的3306端口映射到主机的3306端口
    -v /mydata/mysql/conf:/etc/mysql 将配置文件夹挂载到主机
    -v /mydata/mysql/log:/var/log/mysql 将日志文件夹挂载到主机
    -v /mydata/mysql/data:/var/lib/mysql  将数据文件夹挂载到主机
    -e MYSQL_ROOT_PASSWORD=123456  初始化root密码


mysql 配置
vim /mydata/mysql/conf/my.cnf

- 配置MySQL编码


```
[client]
default-character-set=utf8

[mysql]
default-character-set=utf8

[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve   #解决 mysql 连接慢的问题
```

docker update --restart=always fb1c23c3a64e