docker on centos 6

rpm -iUvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

yum update -y

yum -y install docker-io

After doing these, i met a problem with Cgroup.

/cgroup/memory: No such file or directory

Starting cgconfig service: Error: cannot mount memory to /cgroup/memory: No such file or directory

/sbin/cgconfigparser; error loading /etc/cgconfig.conf: Cgroup mounting failed

Failed to parse /etc/cgconfig.conf                         [FAILED]

Then, edit "/etc/cgconfig.conf" as follows :

# memory = /cgroup/memory;

And start the cgroup service and docker

$ sudo service cgconfig start

$ sudo service docker start

Optionally, we can configure docker to start at every booting time as follows,

$ sudo chkconfig docker on