centos docker 安装

Device Mapper
1 检测centos是否安装

ls -l /sys/class/misc/device-mapper

2 安装

yum install -y device-mapper

3 加载

modprobe dm_mod

docker安装
1 卸载

yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-selinux \ docker-engine-selinux \ docker-engine

2 安装
依赖包

 yum install -y yum-utils device-mapper-persistent-data lvm2

设置stable镜像仓库

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

更新yum软件包索引

 yum makecache fast

安装

 yum -y install docker-ce

启动

 systemctl start docker