1. installDocker.sh ,然后自行安装
#安装所需资源包
sudo yum install -y yum-utils
#设置docker下载地址
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
#安装docker
sudo yum install docker-ce -y docker-ce-cli containerd.io
2. 启动docker
sudo systemctl start docker