Docker overlay2吞噬了磁盘空间 [英] Docker overlay2 eating Disk Space

问题描述

以下是在Ubuntu Linux 18.04 LTS上overlay2中的文件系统占用了磁盘空间

Below is the file system in overlay2 eating disk space, on Ubuntu Linux 18.04 LTS

服务器125GB的磁盘空间

Disk space of server 125GB

overlay         124G  6.0G  113G   6% /var/lib/docker/overlay2/9ac0eb938cd2a50bb87e8ed13605d3f09214fdd9c8967f18dfc3f9432701fea7/merged
overlay         124G  6.0G  113G   6% /var/lib/docker/overlay2/397b099799212060ee7a4718660aa13aba8aa1fbb92f4d88d86fbad94e572847/merged
shm              64M     0   64M   0% /var/lib/docker/containers/7ffb129016d187a61a31c33f9e468b98d0ac7ab1771b87631f6caade5b84adc6/mounts/shm
overlay         124G  6.0G  113G   6% /var/lib/docker/overlay2/df7c4acee73f7aa2536d2a8929a48241bc8e92a5f7b9cb63ab70cea731b52cec/merged

推荐答案

如果上述方法不起作用，则另一种解决方案是设置日志轮换.

Another solution if the above doesn't work is setup a log rotation.

nano /etc/docker/daemon.json

如果找不到

cat > daemon.json

在文件中添加以下行:

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

重新启动docker守护进程: systemctl重新启动docker

Restart the docker daemon: systemctl restart docker

请参考:如何设置日志循环发布安装

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