查找docker下大文件占量对应的容器
du -sh /data/docker/overlay2/* |sort -h
输出：
326M /data/docker/overlay2/085274dd3aa1e018ad80e62376a074a47d8e21b53c8faa3623582751dead5a0b
378M /data/docker/overlay2/21d2f52403f2e5e83ebba8f3bbbf7fb4e948ef65862e83f2c81b349b1df6dc2d
514M /data/docker/overlay2/4eed1b67972569a3db436b1d329f62b55b64659940929ab7546752860dd113dd
544M /data/docker/overlay2/109e308ef9da8f61d7bf33ee6252443a2f417c7b4192924710bb1be0012e05d5
583M /data/docker/overlay2/010cd7fede6ccfd07a1758f7a265b7da3b68a9fec6ce991874e1f6f17348d85b
585M /data/docker/overlay2/30f482bcbd181dfa1a8292bea59c0399622f0b42d83a329a1d63b9efd44b676e
614M /data/docker/overlay2/2dbc64ad03ab6ea2dd271fc75cc2ca66c78bf785ace4bb517ad705019f2d434d
762M /data/docker/overlay2/f3903741cbfa7f379a8a4f03d347844f4d02f0c80c52ba1525f9e6080d5df959
902M /data/docker/overlay2/8a0c57303332f3629a0bd8cd079cc8fe45c86d96f9f5c5da43df5c7f726854fe
1.2G /data/docker/overlay2/d6f309be7485037ebfd1a7d940629735c380fa988f46e1c18d97ce625b75743d
1.4G /data/docker/overlay2/4b47ed67461186fe9e9a9fdee639e5ce454d51a63e466945b45376c356a7e6f2
5.3G /data/docker/overlay2/c7be2216ed78c976449d50180ef4bb6886a32b9ba0dba0c758909493f0b5206a
5.3G /data/docker/overlay2/d5bda52f0fb341ea461dfa27955a69571b78c04883c1f0dd72a78785bbee632e
5.3G /data/docker/overlay2/f4afc01b09ee4d9d5c7dc696ef33e4f4d18d807cf5f4abe915dd625fbaa18424
5.4G /data/docker/overlay2/51b2514bdd8877b3a35fcb2cd6fc76067cda7c69dd6d54f0341f7f7aeeac6070
5.4G /data/docker/overlay2/681d43eab1e1846ea1661eceb0d8a98f0e08647509abb6ae87eab61e66fca3ca
5.4G /data/docker/overlay2/931b7700600941d39d09eb44db8e72d03a8fd7e67883c77a55c30ab49880460d
6.1G /data/docker/overlay2/561e521d8747d322ab6627d90af9c0c689f356b8500b141302923d64d925a864
3.0T /data/docker/overlay2/8b0f51161d33a89ad8af123514674714493e33f659f4900ba107913401ee5c09
每个容器都有对应的 mount-id，它存放在：
/data/docker/image/overlay2/layerdb/mounts/
grep -R "7b424c8d74a720db42c37ada5c47750bcdae939505d82f43dc04baf12a05ecda" /data/docker/image/overlay2/layerdb/mounts/*/mount-id
输出：
/data/docker/image/overlay2/layerdb/mounts/0a55161d17c63d2f70f3fbe611056c13cbfe10a969924c51d48a4ca9c5458333/mount-id:7b424c8d74a720db42c37ada5c47750bcdae939505d82f43dc04baf12a05ecd
docker ps -a --no-trunc | grep '0a55161d17c63d2f70f3fbe611056c13cbfe10a969924c51d48a4ca9c5458333'