查看文件大小

df -Th
find . -type f -size +100M

服务器日志清理

脚本处理
设置一个查看的脚本docker_log_size.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

同时，也可以通过脚本来清理：clean_docker_log.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 ========"

docker 日志设置

全局配置

在/etc/docker/daemon.json文件中的以下内容自动轮换日志：

{
  "log-driver": "json-file",
  "log-opts": {"max-size": "100m", "max-file": "3"}
}

配置完后重启docker
systemctl daemon-reload && systemctl restart docker

docker-compose 容器限制

nginx: 
  image: nginx:1.12.1 
  restart: always 
  logging: 
    driver: "json-file"
    options: 
      max-size: "512M"