首先，配置配置 Docker 加速器：由於國外映象下載緩慢，咱們中國人用自己國內映象，這裡，博主用的是DaoCloud映象加速：

# curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://271adcfb.m.daocloud.io

該指令碼可以將 –registry-mirror 加入到你的 Docker 配置檔案 /etc/sysconfig/docker
如果沒有/etc/sysconfig/docker這個配置檔案
1、# vim /lib/systemd/system/docker.service

[Unit]
 

Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network.target docker.socket
Requires=docker.socket

[Service]
Type=notify
EnvironmentFile=/etc/sysconfig/docker
ExecStart=/usr/bin/dockerd $OPTIONS
LimitNOFILE=1048576
LimitNPROC=1048576
LimitCORE=infinity
MountFlags=slave
 


[Install]
WantedBy=multi-user.target

2、# vim /etc/sysconfig/docker

# /etc/sysconfig/docker# Modify these options if you want to change the way the docker daemon runs
OPTIONS='-H tcp://0.0.0.0:4243 -H unix:///var/run/docker.sock'
DOCKER_CERT_PATH=/etc/docker

# If you want to add your own registry to be used for docker search and
 
 docker
# pull use the ADD_REGISTRY option to list a set of registries, each prepended
# with --add-registry flag. The first registry added will be the first registry
# searched.
# ADD_REGISTRY='--add-registry registry.access.redhat.com'

# If you want to block registries from being used, uncomment the BLOCK_REGISTRY
# option and give it a set of registries, each prepended with --block-registry
# flag. For example adding docker.io will stop users from downloading images
# from docker.io
# BLOCK_REGISTRY='--block-registry'

# If you have a registry secured with https but do not have proper certs
# distributed, you can tell docker to not look for full authorization by
# adding the registry to the INSECURE_REGISTRY line and uncommenting it.
 INSECURE_REGISTRY='--insecure-registry dl.dockerpool.com:5000'

# On an SELinux system, if you remove the --selinux-enabled option, you
# also need to turn on the docker_transition_unconfined boolean.
# setsebool -P docker_transition_unconfined 1

# Location used for temporary files, such as those created by
# docker load and build operations. Default is /var/lib/docker/tmp
# Can be overriden by setting the following environment variable.
# DOCKER_TMPDIR=/var/tmp

# Controls the /etc/cron.daily/docker-logrotate cron job status.
# To disable, uncomment the line below.
# LOGROTATE=false

3、重啟docker

# systemctl daemon-reload
# systemctl restart docker

此時，可以下載映象了：
# docker pull mysql

下載完成後：

# docker ps -a

檢視映象資訊

建立外部資料掛載點：

# sudo mkdir -p /var/docker_data/mysql/data
# sudo chmod 775 -R /var/docker_data/mysql/

啟動Mysql容器
通過-e引數可以設定一下Mysql服務端的引數，這裡設定了root的密碼:123456

# docker run -p 3306:3306 --name mysql-one -v /var/docker_data/mysql/data/:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 -d mysql:latest

此時容器的3306埠會被對映到宿主機器的3306埠，這樣我們就可以通過宿主機器的3306埠訪問mysql了
檢視docker是否啟動:

# docker ps -a

在宿主機連結Mysql容器
使用PORTS顯示的ip地址部分作為 -h 引數，如果不是在宿主機上，則使用宿主機的IP地址

# mysql -h 0.0.0.0 -u root -p

或者直接進入容器：

# docker exec -ti <容器id> /bin/bash

登入mysql

# mysql -uroot -p

輸入剛設定的密碼123456
成功進入mysql