docker解决stdout log文件越来越大的问题

1. Edit the daemon configuration file:
   

   $ vim /etc/docker/daemon.json
   

2. Add the following lines to file:
   

   {
   "log-driver": "json-file",
   "log-opts": {
       "max-size": "10m",    
       "max-file": "3"    
       }
   } 
   

3. Restart the docker daemon: systemctl restart docker 
4. Chinese File with mirrors
   

   {
     "log-driver": "json-file",
     "log-opts": {
       "max-size": "10m",
       "max-file": "3"
     },
     "registry-mirrors": [
       "https://dockerhub.azk8s.cn",
       "https://n6mdpfki.mirror.aliyuncs.com",
       "https://reg-mirror.qiniu.com",
       "http://hub-mirror.c.163.com",
       "https://docker.mirrors.ustc.edu.cn",
       "https://registry.docker-cn.com"
     ]
   }