4.1安装依赖包[root@localhost ~]# yum -y install yum-utils device-mapper-persistent-data lvm2

4.2添加docker的CE版本的yum源配置文件[root@localhost ~]# curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo% Total % Received % Xferd Average Speed Time Time Time CurrentDload Upload Total Spent Left Speed100 2424 100 2424 0 0 2594 0 --:--:-- --:--:-- --:--:-- 2592

[root@localhost ~]# ll /etc/yum.repos.d/docker-ce.repo-rw-r--r--. 1 root root 2424 Sep 7 20:18 /etc/yum.repos.d/docker-ce.repo

4.3安装CE版本[root@localhost ~]# yum -y install docker-ce[root@localhost ~]# systemctl start docker[root@localhost ~]# systemctl enable dockerCreated symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.[root@localhost ~]# docker versionClient:Version: 18.06.1-ceAPI version: 1.38Go version: go1.10.3Git commit: e68fc7aBuilt: Tue Aug 21 17:23:03 2018OS/Arch: linux/amd64Experimental: false

Server:Engine:Version: 18.06.1-ceAPI version: 1.38 (minimum version 1.12)Go version: go1.10.3Git commit: e68fc7aBuilt: Tue Aug 21 17:25:29 2018OS/Arch: linux/amd64Experimental: false