一 安装

Install with yum

• 查看当前Linux内核

uname -r

• 更新yum

sudo yum update

• 添加yum仓库

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
EOF

• 安装docker

yum install docker-engine

• 查看docker版本

docker -v

• 开启docker服务

systemctl enable docker.service

• 启动docker

systemctl start docker

• 查看docker进程

ps -aux | grep docker

• 查看docker

docker ps -a