Installing Docker under Linux CentOS

1. After loading a good centos in the VM, update the kernel

A kernel version of 3.8 or higher is required to run Docker, and the kernel must support a suitable storage driver (Drivice Mapper, AUFS, VFS, Btrfs, ZFS), and the default storage driver is Drivice Mapper or Aufs and the kernel must turn on cgroup and NAMESPCE functions.

Uname-r can view the kernel version.

Kernel upgrade

2. Installing Docker

Installing Docker

Yum-y Install Docker-io

Start Docker

Service Docker start

Boot up

Chkconfig--add--level 245 Docker

Service Docker status appears if Docker dead but Subsys locked executes

Rm/var/run/docker.*

Rm/var/lock/subsys/docker rm-rf/var/lib/docker/* rpm manual Download install yum install https://GET.DOCKER.COM/RPM/1.7.1/ centos-6/rpms/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm 　　service Docker start

Installing Docker under Linux CentOS