yum update

 

# vim /etc/yum.repos.d/docker.repo

//添加以下内容

[dockerrepo]

name=Docker Repository

baseurl=https://yum.dockerproject.org/repo/main/centos/7/

enabled=1

gpgcheck=1

gpgkey=https://yum.dockerproject.org/gpg

 

# yum install docker-engine -y

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