docker安装

1、卸载docker

$ sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine

2、使用存储库安装

$ sudo yum install -y yum-utils

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

3、安装DOCKER引擎

$ sudo yum install docker-ce docker-ce-cli containerd.io

2、启动Docker并设置开机自启

$ sudo systemctl start docker $ sudo systemctl enable docker