# 安装依赖
sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2

# 添加 docker 下载仓库
sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

# 安装 docker-ce
sudo yum install docker-ce

# 启动 docker
sudo systemctl start docker

# 设置开机启动
sudo systemctl enable docker

# 验证
sudo docker --version

sudo docker run hello-world