在安装我的centos Stream 8操作系统期间，我给/var设置了10GB的大小，认为这已经足够了，但是在我开始使用docker之后，我发现它在/var分区上占用了太多空间，如下所示df 命令：
\n[root@compute-07 ~]# df -h\nFilesystem Size Used Avail Use% Mounted on\ndevtmpfs 28G 0 28G 0% /dev\ntmpfs 28G 0 28G 0% /dev/shm\ntmpfs 28G 179M 28G 1% /run\ntmpfs 28G 0 28G 0% /sys/fs/cgroup\n/dev/mapper/cs-root 371G 8.2G 363G 3% /\n/dev/mapper/cs-home 100G 2.0G 98G 2% /home\n/dev/mapper/cs-var 10G 9.0G 1.1G 90% /var\n/dev/sda2 2.0G 412M 1.6G 21% /boot\n/dev/sda1 2.0G 7.3M 2.0G 1% /boot/efi\n/dev/mapper/cs-tmp 10G 105M 9.9G 2% /tmp\ntmpfs 5.5G 16K 5.5G 1% /run/user/42\noverlay 10G 9.0G 1.1G 90% \n\n/var/lib/docker/overlay2/77f74478297ca61595f0003d35c7323ec627adb44d94cef92c2b4a3c97319a66/merged\noverlay 10G 9.0G 1.1G 90% /var/lib/docker/overlay2/5eeb399ce4a3c0d8065d63123985269a359fa66f4d20a8486326e466a48a0128/merged\noverlay …