有两种方法
1 从 get.docker.com 下载安装包
# yum update # curl -sSL https://get.docker.com/ | sh # service docker start # docker run hello-world
2 用 yum package manager 直接安装
Install Docker via yum package manager.
# yum update # cat >/etc/yum.repos.d/docker.repo <<-EOF [dockerrepo] name=Docker Repository baseurl=https://yum.dockerproject.org/repo/main/centos/7 enabled=1 gpgcheck=1 gpgkey=https://yum.dockerproject.org/gpg EOF
# yum install docker-engine # service docker start # docker run hello-world