CentOS7安装Docker-CE

卸载旧版docker及安装依赖

sudo yum remove docker docker-common docker-selinux docker-engine
sudo yum install -y yum-utils device-mapper-persistent-data lvm2

下载repo

wget -O /etc/yum.repos.d/docker-ce.repo https://download.docker.com/linux/centos/docker-ce.repo

替换软件仓库为TUNA

sudo sed -i 's+download.docker.com+mirrors.tuna.tsinghua.edu.cn/docker-ce+' /etc/yum.repos.d/docker-ce.repo

安装

sudo yum makecache fast
sudo yum install docker-ce

更换国内镜像

sudo vim /etc/docker/daemon.json
       {
           "registry-mirrors":  [
               "https://registry.docker-cn.com"
           ]
       }
sudo systemctl daemon-reload
sudo systemctl restart docker
# 查看是否配置成功
sudo docker info