• 配置repo

sudo tee /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 [docker-main-repo] name=Docker main Repository baseurl=http://mirrors.aliyun.com/docker-engine/yum/repo/main/centos/7 enabled=1 gpgcheck=1 gpgkey=http://mirrors.aliyun.com/docker-engine/yum/gpg EOF

• 安装软件

yum install docker-engine
systemctl enable docker.service

• 启动服务

systemctl start docker

• 测试

docker run --rm hello-world