1.拉取镜像
docker pull mysql:5.7
2.查看本地镜像
docker images
3.创建目录
mkdir /usr/local/docker/mysql/logs
mkdir /usr/local/docker/mysql/data
mkdir /usr/local/docker/mysql/conf
4.创建my.cnf文件，内容如下
[mysql]
#设置mysql客户端默认字符集
default-character-set=utf8
socket=/var/lib/mysql/mysql.sock
[mysqld]
#mysql5.7以后的不兼容问题处理
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
#允许最大连接数
max_connections=200
#服务端使用的字符集默认为8比特编码的latin1字符集
character-set-server=utf8
#创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
lower_case_table_names=1
max_allowed_packet=16M
#设置时区
default-time_zone='+8:00'
[mysqld_safe]
log-error=/var/log/mariadb/mariadb.log
pid-file=/var/run/mariadb/mariadb.pid
#
# include all files from the config directory
#
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mysql.conf.d/
5.启动容器
docker run --name mysql5.7 -p 3306:3306 --privileged=true --restart=always -d -v /usr/local/docker/mysql/logs:/logs -v /usr/local/docker/mysql/data:/var/lib/mysql -v /usr/local/docker/mysql/conf/my.cnf:/etc/mysql/mysql.conf.d/mysqld.cnf -e MYSQL_ROOT_PASSWORD=Cc201818 mysql:5.7
6.查看容器启动状态
docker ps -a
7.测试连接
通过可视化工具进行连接即可