Docker Internal Installation Guide

This article describes how to install Docker in a Redhat/centos environment. Official documentation requires at least 3.8 Linux kernel, and Docker can only run on a 64-bit system. Since the kernel version of RHEL6 and CentOS6 is 2.6, the kernel must be upgraded first.

Below is an example of CentOS6.5 (64-bit), which describes the following Docker installation steps and how to use them:

First, upgrade the kernel (with Aufs module, remember to upgrade, otherwise there will be a lot of strange problems, it is recommended to install with Yum)

1. Yum Install the 3.10 kernel with aufs module (or download kernel manual installation here: http://down.51cto.com/data/1903250)

Cd/etc/yum.repos.d

wget Http://www.hop5.in/yum/el6/hop5.repo

Yum Install Kernel-ml-aufs Kernel-ml-aufs-devel

2, modify the GRUB main profile/etc/grub.conf, set default=0, indicating that the content under the first title is the default startup kernel (typically the newly installed kernel is in the first position).

3, restart the system, this time your kernel has been successfully upgraded.

[Email protected] ~]# Uname–r

3.10.5-3.el6.x86_64

To see if the kernel supports AUFS:

[[email protected] ~]# grep aufs/proc/filesystems

Nodev Aufs

Second, install Docker

First turn off SELinux and close iptables:

Setenforce 0

Sed-i '/^selinux=/c\selinux=disabled '/etc/selinux/config

Service Iptables Stop

2. Docker-io package has been provided in Fedora Epel source, download and install Epel:

RPM-IVH http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm

Sed-i ' s/^mirrorlist=https/mirrorlist=http/'/etc/yum.repos.d/epel.repo

Installation of Iproute with NS

Yum Install-y http://rdo.fedorapeople.org/rdo-release.rpm

Vi/etc/yum.repos.d/rdo-release.repo

[Openstack-juno]

Name=openstack Juno Repository

baseurl=http://repos.fedorapeople.org/repos/openstack/openstack-havana/epel-6/

Enabled=1

Skip_if_unavailable=0

Gpgcheck=0

Gpgkey=file:///etc/pki/rpm-gpg/rpm-gpg-key-rdo-juno

Yum Install-y Iproute

Yum Update-y Iproute

3. Yum Installation Docker-io:

Yum-y Install Docker-io

4. Start Docker:

1	Service Docker start

5. View the Docker version:

To view Docker logs:

Cat/var/log/docker

Import a previously backed up mirror

Docker Load </xxx/xxx-docker.tar

Docker Internal Installation Guide