yum install -y docker
systemctl start docker
systemctl enable docker
cd /opt
docker pull star7th/showdoc
docker tag star7th/showdoc showdoc
mkdir -p /showdoc_data/html/
chmod -R 777 /showdoc_data/html/
docker run --restart=always -d --name showdoc -p 4999:80 -v /showdoc_data/html:/var/www/html showdoc
docker exec -it showdoc /bin/bash
cp /showdoc_data/html/ /var/www/
参考:https://blog.youkuaiyun.com/qq_19734597/article/details/92685832
https://www.cnblogs.com/charles-jiang/p/12971158.html