1.如果有老版本的doker 首先卸载老版本

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

2.yum安装gcc相关

1. yum -y install gcc
2. yum -y install gcc-c++

3.设置镜像仓库

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

4.· 更新yum软件包索引

yum makecache fast

5.安装DOCKER CE

yum -y install docker-ce docker-ce-cli containerd.io

6.启动docker

systemctl start docker

7.docker version 查看版本

8.docker run hello-world

9.卸载

1. systemctl stop docker
2. yum remove docker-ce docker-ce-cli containerd.io
3. ·rm -rf /var/lib/docker
4. rm -rf /var/lib/containerd

10.阿里云镜像加速

· 是什么

· https://promotion.aliyun.com/ntms/act/kubernetes.html

· 注册一个属于自己的阿里云账户(可复用淘宝账号)

· 获得加速器地址连接

· 登陆阿里云开发者平台

sudo mkdir -p /etc/docker

sudo tee /etc/docker/daemon.json <<-'EOF' { "registry-mirrors": ["https://339lzedx.mirror.aliyuncs.com"] } EOF

sudo systemctl daemon-reload

sudo systemctl restart docker

end

官网地址：https://docs.docker.com/engine/install/centos/