1.配置ali的yum镜像源
1. 获取阿里云 repo
cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
cp /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.bak
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
2.清理原来的缓存,重新缓存
yum clean all
yum makecache
3.1卸载旧版本的docker
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
3.2下载所需的安装包
yum install -y yum-utils
3.3设置镜像仓库
yum-config-manager \
--add-repo \
https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3.4更新yum软件包索引
yum makecache fast
3.5安装docker相关的配置
yum install docker-ce docker-ce-cli containerd.io
4.启动docker
systemctl start docker
docker version
systemctl enable docker
5.run hello-world
docker run hello-world