CentOS7.6 安装Docker

删除已安装的Docker

# Uninstall installed docker
sudo yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-selinux 
                  docker-engine-selinux 
                  docker-engine

配置阿里云Docker Yum源

# Set up repository
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

# Use Aliyun Docker
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

安装 Docker CE

更新 yum 软件源缓存，并安装 docker-ce。

sudo yum makecache fast
sudo yum install docker-ce

启动Docker服务

# Start docker service
systemctl enable docker
systemctl start docker