docker_system_help_0">docker system --help

siqi@aliyun-sh-001:~/images$ sudo docker system --helpUsage:  docker system COMMANDManage DockerCommands:df          Show docker disk usage(显示docker磁盘使用情况)events      Get real time events from the server(从服务器获取实时事件)info        Display system-wide information (显示系统信息)prune       Remove unused data(删除不使用的数据)Run 'docker system COMMAND --help' for more information on a command.

docker_system_df_18">docker system df

提供Docker整体磁盘使用率的概况，包括镜像、容器和（本地）volume。所以我们现在随时都可以查看Docker使用了多少资源

siqi@aliyun-sh-001:~/code/data-analysis/api$ sudo docker system df
TYPE            TOTAL     ACTIVE    SIZE      RECLAIMABLE
Images          48        22        48.73GB   38.21GB (78%)
Containers      29        29        10.44MB   0B (0%)
Local Volumes   107       4         93.68GB   93.62GB (99%)
Build Cache     116       0         3.66MB    3.66MB

docker_system_prune_29">docker system prune

删除所有未使用的容器、网络、映像（包括悬挂的和未引用的），以及卷（可选）

• 未使用的容器：所有已停止的容器将被删除
• 未使用的镜像：只有悬挂的镜像（未被任何容器引用）将被删除，除非使用了 -a 或 --all 参数
• 未使用的网络：所有未被容器使用的自定义网络将被删除
• 未使用的卷（如果使用 --volumes 或 -v 选项）：所有未被容器引用的卷将被删除

相关参数：

• -a, --all：删除未被任何容器引用的所有镜像，而不仅仅是悬挂的镜像
• –filter：根据提供的条件过滤要删除的内容
• –force, -f：跳过确认步骤，直接执行删除，不加的话在执行步骤时需要手动确认，建议不用。手动容错率高一点
• –volumes, -v：删除所有未被至少一个容器引用的卷

删除所有未使用的容器、镜像、网络：docker system prune
删除所有未使用的容器、镜像（包括未被引用的）、网络：docker system prune -a
删除所有未使用的容器、镜像、网络、卷：docker system prune --volumes

siqi@aliyun-sh-001:~/images$ sudo docker system prune
WARNING! This will remove:- all stopped containers- all networks not used by at least one container- all dangling images- all dangling build cacheAre you sure you want to continue? [y/N] y
Deleted Images:
deleted: sha256:d66359a5ae191ca285bc1167518dea4fd83536e5135c017503205637ef365ffeDeleted build cache objects:
76d2jytvsnm5zni5k03nb1nlq
ndsu19mwql70b6kt9yktrpwon
q9tsol0v4tkfzfoszvo2x9zvx
vrwfqcagz7r8ifu5cnlhdfrt4
syi02l2bsnvzrwjpweaulu8reTotal reclaimed space: 5.618GB

docker_container_prune_70">docker container prune

删除所有未运行的容器

siqi@aliyun-sh-001:~/images$ sudo docker container prune
WARNING! This will remove all stopped containers.
Are you sure you want to continue? [y/N] y
Total reclaimed space: 0B

docker_image_prune_78">docker image prune

要删除所有未使用的镜像

siqi@aliyun-sh-001:~/images$ sudo docker image prune
WARNING! This will remove all dangling images.
Are you sure you want to continue? [y/N] y
Total reclaimed space: 0B

docker_network_prune_86">docker network prune

要删除所有未使用的网络

siqi@aliyun-sh-001:~/images$ sudo docker network prune
WARNING! This will remove all custom networks not used by at least one container.
Are you sure you want to continue? [y/N] y

docker_volume_prune_94">docker volume prune

删除所有未使用的卷

siqi@aliyun-sh-001:~/images$ sudo docker volume prune
WARNING! This will remove all local volumes not used by at least one container.
Are you sure you want to continue? [y/N] y
Deleted Volumes:
22522c1e24da1fb2826c5d3f58248a5c0b2886813c2298a5c196bb8632c3bc31
4b1900b4f3c40bb3c85a0c68cae8ac2b888529482879abd18c8390c4f2dd6ac8
8bb0075d091b1c2fde3b955de96e47695f93191e09e71eee403e5c6edcb827de
415f3d9b5a229d615a734c7488ca1f29b0e7abc2adb6544229078c5cfdba7d4b
c3bfd05a31061f8e48fecf85dd7277a3498ae322dfb053b2fb6372c02bee88f6
b1c5f43ade5237ca757bf6075ed7ff259f4967a0235589fbc083e7fe64c47503
9f8841f01afd7f6b23408d04ae1b58b5c34102b63787dc8fc997782fae76e222
38e9235262c538ee4debeff1fe92f2cada6013daa42a13584e4003441f95a64b
8f0c9ba87d77a9f812283a0d03299557c79322a8149385ac52c4023afea73961
1f6c0a82e016e8b2024ab8d8d14b569fca5514092f05eea665754b3b84d02f82
4789f8d09149739a6b3898a4dc05e1a508da4ba58354ffbf4c178aa6d200f8cd
1cb3a882f4c7d7f43394318d69cc7882fe419cd00495f959f4fcdb90e36a4a5c
6f1a57c764e2b9c542ceea16bed4c0f418e9da6f38d06f9217b49b780ea845b2
61fa635ee216502ace3cce349f9b8bea3530349f97bbc96fd3bc0284e568f70f
692d6655178c3e03739742820ed14b7a254ca74219de2fe0022aa7eb7e45286c
3c63057faee65ebb8726d238c9e5c4e1eeffbb0a292736a45aed7b44eddb6f79
ff680dc86b395e25ea60c75a65aa437086e6886e04e7bd75cc3c118362bdf32e
0c18d949fe762fcb9bcbd296f05f20542c7120f4ae16b1bf6ca02bf3adfd2402
e872c660f770e3c54f582e35f7eb401cb400cfcb48328ae57ea8f16e875402b9
97767c652ff164883d80fd01ff5e323793cb519ddce0ef9c95b82823ac3943d9
3b2902e6c30747c1c8b67e94ff31872189bc100cfe81c89a1c8f9e174bb97eeb
9248123749c8525a06c650e0bac2900f35285d9c8dad51262978f350d1ea700d
9439364ecd0d1161714e1123041eef6b95c4e37f28194ba6fa2c3d469c7136c5
b2bb414b4e75fd570a07e36ba612e8b5eb65158b5f26c54922a33a647dbd0180
0160e74f7b174c08532e396adadbac1b40b250bc2f0a01e27bc8d96c20f007d2
a11b9f5477bac6a07e1fc9bf45384e320d15f8d9f6ecd3487b2d4a4726753c81
bca4251b76d8c709177e666a6375e640d3120fb55484924de05bc81cf1f2ca0eTotal reclaimed space: 1.286MB