Linux安装Docker

CentOS 7

#卸载旧版本docker相关软件

yum remove docker 
                  docker-client 
                  docker-client-latest 
                  docker-common 
                  docker-latest 
                  docker-latest-logrotate 
                  docker-logrotate 
                  docker-selinux 
                  docker-engine-selinux 
                  docker-engine

#安装依赖包

yum install -y yum-utils 
  device-mapper-persistent-data 
  lvm2

#配置docker的yum源

yum-config-manager 
    --add-repo 
    https://download.docker.com/linux/centos/docker-ce.repo

#安装docker-ce

yum install docker-ce -y

#启动并查看docker信息

systemctl start docker
docker info

#卸载docker

yum remove docker-ce
rm -fr /var/lib/docker

　　

Ubuntun 14.06/16.04/18.04

#卸载docker旧版本相关软件

apt-get remove docker docker-engine docker.io

#安装证书

apt-get install 
    apt-transport-https 
    ca-certificates 
    curl 
    software-properties-common

#添加docker源的key

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

#升级apt-get包

apt-get update

#安装docker-ce

apt-get install docker-ce

#卸载docker-ce

apt-get purge docker-ce
rm -fr /var/lib/docker