01-CentOS 8.1安装 Docker

官方参考地址：https://docs.docker.com/install/linux/docker-ce/centos/

里面包含包下载地址：https://download.docker.com/linux/centos/8/x86_64/stable/Packages/containerd.io-1.4.3-3.1.el8.x86_64.rpm

一。确认CentOS 版本

　　cat /etc/redhat-release

二。yum安装gcc相关插件

　　2.1 yum -y install gcc

  2.2 yum -y install gcc-c++

 三。安装需要的软件包

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

 四。设置stable镜像仓库

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

或

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

 

五。更新yum软件包索引

yum makecache fast

 六。安装docker ce 

yum -y install docker-ce

 报错 

Problem: package docker-ce-3:20.10.0-3.el7.x86_64 requires containerd.io >= 1.4.1, but none of the providers can be installed

 安装centos8.1对应的 containerd.io

 dnf install https://download.docker.com/linux/centos/8/x86_64/stable/Packages/containerd.io-1.4.3-3.1.el8.x86_64.rpm

再安装docker ce 

 

 七。设置开机自启Docker并启动Docker

1. systemctl enable docker.service
2. systemctl start docker.service

 八。查看docer 版本

　　docker version