Only use various Bomben subsequent centos linux system installed
Docker CE supports 64-bit CentOS 7, and require kernel version is not less than 3.10. Lower than the 3.10 upgrade their own kernel or reinstall centos7 or later
Upgrading the kernel
##到root用户执行升级操作.
[root@localhost ~]
# uname -a ##旧版
Linux localhost.localdomain 2.6.32-279.el6.i686
[root@localhost ~]
# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
[root@localhost ~]
# rpm -ivh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
[root@localhost ~]
# yum --enablerepo=elrepo-kernel install kernel-lt -y
[root@localhost ~]
# vim /etc/grub.conf default=1 改为 default=0 ##设置默认以3.10核心启动，默认是按照旧的核心启动
[root@localhost ~]
# reboot
[root@localhost ~]
# uname -a ##升级后的版本
Linux localhost.localdomain 3.10.104-1.el6.elrepo.i686
Using yum install
Make install dependencies
[root@node ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
In view of the domestic network problems, it is strongly recommended to use domestic sources, please see the official source in comments.
Execute the following command to add yum the software source:
[root@node ~]# yum-config-manager --add-repo https://mirrors.ustc.edu.cn/docker-ce/linux/centos/docker-ce.repo
We need to test version
[root@node ~]# yum-config-manager --enable docker-ce-test
Installation dokcer-ce
[root@node ~]# yum install docker-ce
Restart
[root @ the Node ~] # systemctl Docker enable
the Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service. # such a display
[root@node ~]# systemctl start docker
Test Docker is installed correctly
finish installation