升级组件：
yum update -y移除旧版Docker及其组件：
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine升级Yum组件及添加Docker源：
sudo yum install -y yum-utils
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo安装Docker引擎：
sudo yum install -y docker-ce docker-ce-cli containerd.io设置自动启动：
systemctl start docker
systemctl enable docker安装docker-compose：
sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose大功告成！
