1、查看内核版本,Docker 要求 CentOS 系统的内核版本高于 3.10,否则就升级内核
[root@localhost ~]# uname -r
3.10.0-862.el7.x86_64
2、确保yum包更新到最新
[root@localhost ~]# yum update
3、安装依赖
[root@localhost ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
4、设置yum源
[root@localhost ~]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
5、安装docker
[root@localhost ~]# yum install docker-ce
6、启动docker
[root@localhost ~]# systemctl start docker
7、加入开机启动项
[root@localhost ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
8、验证docker是否安装成功
[root@localhost ~]# systemctl enable docker
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@localhost ~]# docker version
Client:
Version: 18.03.1-ce
API version: 1.37
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:20:16 2018
OS/Arch: linux/amd64
Experimental: false
Orchestrator: swarm
Server:
Engine:
Version: 18.03.1-ce
API version: 1.37 (minimum version 1.12)
Go version: go1.9.5
Git commit: 9ee9f40
Built: Thu Apr 26 07:23:58 2018
OS/Arch: linux/amd64
Experimental: false
[root@localhost ~]#
