1：查看系统版本
uname -r
2：安装docker
先确保有网
yum install docker
3：查看是否安装成功
$docker version
若输出以下，说明安装成功
Client:
Version: 1.12.6
API version: 1.24
Package version: docker-1.12.6-61.git85d7426.el7.centos.x86_64
Go version: go1.8.3
Git commit: 85d7426/1.12.6
Built: Tue Oct 24 15:40:21 2017
OS/Arch: linux/amd64
Cannot connect to the Docker daemon. Is the docker daemon running on this host?
4:查看已安装的docker安装包
yum list installed|grep docker
5:删除安装包
yum –y remove
https://www.daocloud.io/account/signup
Error response from daemon: Get https://index.docker.io/v1/search?q=mysql&n=25: net/http: TLS handshake timeout
拉取mysql
docker pull mysql:5.5
查看安装的mysql
dokcer images