yum update
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
yum list docker-ce --showduplicates | sort -r
yum install docker-ce-18.06.3.ce
systemctl start docker
systemctl enable docker
docker version
原文：https://www.cnblogs.com/nishiliu/p/12842799.html