docker的版本变化：
Docker从1.13.x版本开始，版本分为企业版EE和社区版CE，版本号也改为按照时间线来发布，比如17.03就是2017年3月，有点类似于ubuntu的版本发布方式。
企业版自然会提供一些额外的服务，当然肯定也是收费的。企业版说明https://blog.docker.com/2017/03/docker-enterprise-edition/
社区版分为stable和edge两种发布方式。
stable版本是季度发布方式，比如17.03, 17.06, 17.09
edge版本是月份发布方式， 比如17.03, 17.04......
Docker的linux发行版的软件仓库从以前的https://apt.dockerproject.org和https://yum.dockerproject.org变更为目前的https://download.docker.com, 软件包名字改为docker-ce和docker-ee。
docker仓储配置：
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
sudo yum makecache fast
docker卸载：
查看旧版本信息：
[root@localhost kubelet.service.d]# docker --version
Docker version 1.13.1, build 6e3bb8e/1.13.1
[root@localhost kubelet.service.d]# yum list installed | grep docker
docker.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-client.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-client-latest.x86_64 1.13.1-58.git87f2fab.el7.centos @extras
docker-common.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-devel.x86_64 1.3.2-4.el7.centos @extras
docker-distribution.x86_64 2.6.2-2.git48294d9.el7 @extras
docker-forward-journald.x86_64 1.10.3-44.el7.centos @extras
docker-latest.x86_64 1.13.1-58.git87f2fab.el7.centos @extras
docker-latest-logrotate.x86_64 1.13.1-58.git87f2fab.el7.centos @extras
docker-latest-v1.10-migrator.x86_64
docker-logrotate.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-lvm-plugin.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-novolume-plugin.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
docker-unit-test.x86_64 2:1.13.1-68.gitdded712.el7.centos @extras
docker-v1.10-migrator.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
python-docker-py.noarch 1.10.6-4.el7 @extras
python-docker-pycreds.noarch 1.10.6-4.el7 @extras
卸载：
[root@localhost kubelet.service.d]# sudo yum -y remove docker docker-common docker-selinux docker-engine
[root@localhost kubelet.service.d]# yum list installed |grep docker
docker-devel.x86_64 1.3.2-4.el7.centos @extras
docker-distribution.x86_64 2.6.2-2.git48294d9.el7 @extras
docker-forward-journald.x86_64 1.10.3-44.el7.centos @extras
docker-latest-v1.10-migrator.x86_64
docker-unit-test.x86_64 2:1.13.1-68.gitdded712.el7.centos @extras
docker-v1.10-migrator.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
python-docker-py.noarch 1.10.6-4.el7 @extras
python-docker-pycreds.noarch 1.10.6-4.el7 @extras
查看docker-ce版本：
[root@localhost kubelet.service.d]# yum list docker-ce --showduplicates | sort -r
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable
docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable
docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable
重新安装docker-ce:
[root@localhost kubelet.service.d]# sudo yum -y install docker-ce
[root@localhost kubelet.service.d]# systemctl enable docker.service
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@localhost kubelet.service.d]# systemctl restart docker
[root@localhost kubelet.service.d]# docker version
Client:
Version: 18.06.1-ce
API version: 1.38
Go version: go1.10.3
Git commit: e68fc7a
Built: Tue Aug 21 17:23:03 2018
OS/Arch: linux/amd64
Experimental: false
Server:
Engine:
Version: 18.06.1-ce
API version: 1.38 (minimum version 1.12)
Go version: go1.10.3
Git commit: e68fc7a
Built: Tue Aug 21 17:25:29 2018
OS/Arch: linux/amd64
Experimental: false
查看组件：
[root@localhost kubelet.service.d]# yum list installed | grep docker
docker-ce.x86_64 18.06.1.ce-3.el7 @docker-ce-stable
docker-devel.x86_64 1.3.2-4.el7.centos @extras
docker-distribution.x86_64 2.6.2-2.git48294d9.el7 @extras
docker-forward-journald.x86_64 1.10.3-44.el7.centos @extras
docker-latest-v1.10-migrator.x86_64
docker-unit-test.x86_64 2:1.13.1-68.gitdded712.el7.centos @extras
docker-v1.10-migrator.x86_64 2:1.13.1-74.git6e3bb8e.el7.centos @extras
python-docker-py.noarch 1.10.6-4.el7 @extras
python-docker-pycreds.noarch 1.10.6-4.el7 @extras
命令收集：
# 安装必要工具集
$ sudo yum install -y yum-utils
# 安装Docker官方源
$ sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
# 更新yum缓存
$ sudo yum makecache fast
# 安装Dcoker
$ sudo yum -y install docker-ce
# 启动Docker
$ sudo systemctl start docker
# 安装完后设置为系统开机自动启动服务
$ sudo systemctl enable docker.service
# 测试一下
$ docker info
参考：
https://blog.****.net/chenhaifeng2016/article/details/68062414/