1.Docker部署安装yum-utils包（包含yum-config-manager应用）#yuminstall-yyum-utilsdevice-mapper-persistent-datalvm2安装docker-ce.repo#yum-config-manager--add-repohttps://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo开启nightlyrepositories#yum-config-manager--enabledocker-ce-nightly开启testrepositories#yum-co