亲测、截图

阿里云服务器

更新源

sudo yum update -y

2

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

3

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

4

sudo yum install docker-ce

5 启动

sudo systemctl start docker

开机自启

sudo systemctl enable docker