内容From
https://docs.docker.com/engine/reference/commandline/system_df/
docker的image和docker的container都会占用磁盘, 但是不知道具体占用的多少时可以使用docker system 命令来查看
首先看一下 帮助信息
Usage: docker system COMMAND Manage Docker Options: --help Print usage Commands: df Show docker disk usage events Get real time events from the server info display system-wide information prune Remove unused data Run 'docker system COMMAND --help' for more information on a command.
查看磁盘占用情况的命令
[root@server-01 ~]# docker system df TYPE TOTAL ACTIVE SIZE RECLaimABLE Images 2 2 2.874GB 0B (0%) Containers 2 1 41.14MB 41.13MB (99%) Local Volumes 45 4 1.14GB 918.4MB (80%) Build Cache 0 0 0B 0B [root@server-01 ~]#
如果想查看 具体每个docker image 或者是container的占用量 可以使用 增加 -v or --verbose 进行详细显示
一个展示结果为:
[root@server-01 ~]# docker system df -v Images space usage: REPOSITORY TAG IMAGE ID CREATED SIZE SHARED SIZE UNIQUE SIZE CONTAINERS jumpserver/jms_all latest a91591569483 4 weeks ago 2.482GB 0B 2.482GB 1 gluster/gluster-centos latest b2919ab8d731 12 months ago 392.3MB 0B 392.3MB 1 Containers space usage: CONTAINER ID IMAGE COMMAND LOCAL VOLUMES SIZE CREATED STATUS NAMES 577cbedc0abb jumpserver/jms_all:latest "./entrypoint.sh" 3 41.1MB 24 hours ago Exited (137) 23 hours ago jms_all 82a8137c18de gluster/gluster-centos "/usr/local/bin/upda…" 1 5.05kB 4 days ago Up 5 minutes gluster Local Volumes space usage: VOLUME NAME LINKS SIZE 28232dfdf9eb4c08e87265c0915b2f1fc95c098ac293b4ccc91f21fc65986175 0 0B 393c8f10ec342edc91579714fdaddb8f0b5357501c8082ea099e8b41d8c0f948 0 0B 78ec80b3422364717a3147bdaf49ebd10ab53947bddaf0edf393e681a69a0aea 1 240B 7a5598fd2b63c9137a85e40465e1da75e6ddaf164399906b87b07e2cebcede06 0 0B c6a996d3e6cc7aa4efba6eb57a1bb362082e6d15cb8f4cae53eb245cbb1f6233 0 73B d3f48d7cc08d30167a627eda2d47b845fa92ad62a38efdcbdf99f0c16e73fb9a 0 222.1MB 12d12ac620ae1d15a3ecb5cf8ce414398f44f2bd8f0bf7a3d56d77633727940a 0 0B 3732fffea436e55acd7e808e7ac5f32eef989e9f2f698cdfe5a0f165d7e1c233 0 21.32MB 4f55f4787eb7bfa885194e63d97a58262b223ee42ef86ae290204eb186d8fd56 0 0B b44ffc893d1812a9cac0b45a5d36aed231c06846d18fcfd605178cc31e314549 0 0B d088f0df477bbb3af21e59ccb2c797644e2af4ea6ac8cbb383afd615697aed6d 0 0B 389978dc0a2e585109bd5ea16534d33dcfa0d69fa21e5cf9b3b22e296c114b84 1 222MB 4aa5b1166391cb58766e4de9f0d0c55db603894a80338c9112d2af2378567847 1 0B 619415df7af84d744b8ec04f0539c6ec025969620bfcd15ad895f9c2e7327799 0 0B 9157e53459d3cdf4d0b9c3c71e5e81378a38eca28f4b3e0bb3cd1d9fdee260dd 0 0B a48feecb072dab6dc0081dfc48b0ca7bcca7537fe35e5f37d24abff4f44e6652 0 0B ae2911af3c640d525169d25135b29c504d7e04247cf42620bb35ee5daae1da66 0 0B bec53661e99473ef2681d01b4ca8fa1ffa625a73fe2b7f7cd84fac79a5962b1b 0 0B f55b80ce4389ba6313ac4526ce59f38929b8d11eaac7f0e603cea0274587e9e8 0 0B 3b607f80ab18db5d9e444780031d0af869b2c720dcdabd4c91482083ea2679c5 0 0B 63ce10968fd58eb63916383720dd2e3f2d1901b969903b0e827c1ed08111c627 0 8.025kB 781f5f4d2c9384c814a0f519c2503bfeea9977af41a58939d0c4b0b148650c5f 0 240B cd4a84790ad0e8eaaaefdd12c3852cd0dda6b9cdb6c355a351082cf022daabd4 0 0B 2aaf29cabdbd7442044d152b03685f58fbb5b9257456df5538040ae62ba9eaaa 0 240B 322d08f0ba83e8b7868811b4cfedcd0f467f2663643b96748df9869d936a75df 0 0B 47526c71c81c0513deaa7887b8325133b05d871a32b408f1191d40e47f92cf8e 0 73B 4d6c7d65a1edef8f5782353dd591269292cf1374c2c97c108343a0dc81f8a9ea 0 240B 8965af6920ee90a2ff66eb0622b70bb9370719b267b94d19b1c09b9651ed497a 0 0B b5c68a50b4fd157f9d1d54a1361ad78580c21a9974fa39a8938e2db341745e4d 0 0B f20ea6df963794130f6d544c25be5480eb40bf1b60ff5c996d5699e521f801c0 0 222.1MB 1c030028b2e9c78cd1f17dceccdde0292bb2769ec72ba4ceddea9cdf46d054a5 0 0B 4749978ee58dfd3bae2dab19d9fb374fc4c2f6d6ba801e6bf0512f59201c5207 0 0B d1cd74df2c15832a04e37e2c9bb568aad8bf71c6b9e34f7fd5f14d3a1baec6a5 0 168B e80ca51ead4086cbe7e7155be78d9a67a597921c64d6d7a33e4e79e036b17c3b 0 209.5MB f210ce5d79d1478684d9d7a752587f955d2b5e8d3a1d25cb26762d3e7fb46cd3 1 5.298kB 102dcb1b0cafe940ea1c2f6270c994293e490f4c47c110ec4c2eded1c5dd2585 0 0B dac9a5ee661c47fce7631b87faf58a37d65a4471ac025ff900da84493339608b 0 0B f9289ac224f4a9554ca2ded7086f5ae078668a063e616bfc6cb8ea5fa598724b 0 21.32MB 0980676f0ced18aa1fe9b08f704b23905574c2de5f0dba80a1ec11138ba94598 0 0B 0d2a55d67cff0449910ed3aafc9832067911bc33a669c55bea086ac2aa81f4a0 0 222.1MB 425273e99a904562661ba4954c9514839d5dbd96acf1c16ac2afd24f38dc28ea 0 0B 59ea66e5b5f89f250220fc437b7c860f420d0dc80ef1033d669f8eab06515512 0 0B 74a3dcfc0bd71f3b10f5efad969eaa2dc114179ee8b7dd02a092f16f34531825 0 7.393kB 8f2af99113258344c80fb982c7876db85efd3ffeacc5a5c5a8a427099a7dc49f 0 0B def8d003b795fe02bcd4a99229ff9534a8c0e6eb28dbd771c1edba3bcfc5e163 0 0B Build cache usage: 0B CACHE ID CACHE TYPE SIZE CREATED LAST USED USAGE SHARED
2. docker volume 可以创建 卷 用来保证镜像关闭或者删除时 能够保存数据
创建命令
docker volume create
可以保存备份这样的卷信息用来防止信息丢失.
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