November 08, 2017

Docker CE Installation

ENV

`CentOS 7`   ---

Since the Docker 1.13 version released about Feb in 2017 ,the Docker divide into CE Version and EE Version,It was free the fist,Then the next was enhanced in security.

0, System update

Update before:

[root@OM-T ~]# cat /proc/version 
Linux version 3.10.0-693.el7.x86_64 ([email protected]) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Tue Aug 22 21:09:27 UTC 2017
[root@OM-T ~]# docker -v
Docker version 1.12.6, build 0fdc778/1.12.6

Update OS system：

yum update -y

Updated:

[root@OM-T ~]# cat /proc/version
Linux version 3.10.0-693.5.2.el7.x86_64 ([email protected]) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Fri Oct 20 20:32:50 UTC 2017
[root@OM-T ~]#  docker -v
Docker version 17.07.0-ce, build 8784753
[root@OM-T ~]# cat /etc/redhat-release 
CentOS Linux release 7.4.1708 (Core)

1, Remove docker version if existing

yum remove docker docker-common docker-selinux docker-engine

2, Add aliyun docker yum rresponsity

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

3, Cache yum repo

yum-config-manager --enable docker-ce-edge
yum makecache fast

4, Install docker-ce

yum install docker-ce

5, Start docker-ce service and enable it when sys start

systemctl enable docker
systemctl start docker

6, Check docker installation

# docker -v
Docker version 17.07.0-ce, build 8784753
# docker info
Containers: 53
 Running: 11
 Paused: 0
 Stopped: 42
Images: 85
Server Version: 17.07.0-ce
... 

7, Issue ref

If occur message when you remove the images or container after docker-ce installation like Error response from daemon: reference does not exist ,you just rollback the docker version before ,then reinstall docker-ce.