系统环境

‌Centos7.8.2003

卸载旧版本

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

‌安装依赖包

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

添加docker-repository

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

查询docker可供安装版本

yum list docker-ce --showduplicates | sort -r

安装最新版本

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

启动服务与测试

systemctl start docker && systemctl status docker && systemctl enable docker
docker run hello-world