CentOS 7 安装 Docker

1、VM安装CentOS-7-x86_64-DVD-2009
2、安装docker-ce
https://docs.docker.com/engine/install/centos/
root运行以下命令：

1、yum install -y yum-utils
2、yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo 
3、yum update
4、yum install -y yum-utils device-mapper-persistent-data lvm2
5、yum install docker-ce docker-ce-cli containerd.io
6、systemctl start docker
7、systemctl enable  docker
8、docker run hello-world

3、Docker GUI - Portainer：
https://docs.portainer.io/v/ce-2.9/start/install/server/docker/linux

1、docker volume create portainer_data
2、docker run -d -p 8000:8000 -p 9443:9443 --name portainer \
    --restart=always \
    -v /var/run/docker.sock:/var/run/docker.sock \
    -v portainer_data:/data \
    portainer/portainer-ce:latest
3、docker ps

https://IP:9443/