一、操作系统要求
- centOS7及以上的发行版本
- 建议使用overlay2存储驱动程序
二、卸载已有Docker
[root@localhost ~]# sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
三、安装
3.1、添加安装源
[root@localhost ~]# sudo 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
[root@localhost ~]#
3.2、安装最新版本的Docker
[root@localhost ~]# sudo yum -y install docker-ce docker-ce-cli containerd.io
3.3、如果需要安装指定版本的Docker
[root@localhost ~]# yum list docker-ce --showduplicates | sort -r
* updates: mirrors.aliyun.com
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
Installed Packages
* extras: mirrors.aliyun.com
docker-ce.x86_64 3:19.03.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.14-3.el7 docker-ce-stable
执行以下命令
$ sudo yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io
四、启动Docker
[root@localhost xt-app-h5]# systemctl start docker
[root@localhost xt-app-h5]# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since Thu 2020-12-03 02:23:33 EST; 16s ago
Docs: https://docs.docker.com
Main PID: 2558 (dockerd)
Tasks: 10
Memory: 58.8M
CGroup: /system.slice/docker.service
└─2558 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
[root@localhost xt-app-h5]#
五、验证
[root@localhost xt-app-h5]# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
0e03bdcc26d7: Pull complete
Digest: sha256:e7c70bb24b462baa86c102610182e3efcb12a04854e8c582838d92970a09f323
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
