查看清理docker日志

#!/bin/sh
echo "==================== start clean docker containers logs =========================="
logs=$(find /var/lib/docker/containers/ -name *-json.log)
for log in $logs
    do
        echo "clean logs : $log"
        cat /dev/null > $log
    done
echo "==================== end clean docker containers logs   =========================="

clearlog.sh

#!/bin/sh

echo "======== docker containers logs file size ========"  

logs=$(find /var/lib/docker/containers/ -name *-json.log)  

for log in $logs  
        do  
             ls -lh $log   
        done  
echo "========end docker containers logs file size ========"  

checklog.sh

新建/etc/docker/daemon.json，若有就不用新建了。添加log-dirver和log-opts参数，样例如下：

# vim /etc/docker/daemon.json

{
  "registry-mirrors": ["http://f613ce8f.m.daocloud.io"],
  "log-driver":"json-file",
  "log-opts": {"max-size":"500m", "max-file":"3"}
}
 
max-size=500m，意味着一个容器日志大小上限是500M，
max-file=3，意味着一个容器有三个日志，分别是id+.json、id+1.json、id+2.json。

// 重启docker守护进程

# systemctl daemon-reload

# systemctl restart docker