images 列出image的作用
Usage: docker images [OPTIONS] [NAME]
List images
-a, --all=false Show all images (by default filter out the intermediate image layers)
-f, --filter=[] Provide filter values (i.e. 'dangling=true')
--no-trunc=false Don't truncate output
-q, --quiet=false Only show numeric IDs
The default docker images 显示images的一些基础信息
Listing the most recently created images
$ sudo docker images | head
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
<none> <none> 77af4d6b9913 19 hours ago 1.089 GB
committest latest b6fa739cedf5 19 hours ago 1.089 GB
<none> <none> 78a85c484f71 19 hours ago 1.089 GB
$ docker latest 30557a29d5ab 20 hours ago 1.089 GB
<none> <none> 0124422dd9f9 20 hours ago 1.089 GB
<none> <none> 18ad6fad3402 22 hours ago 1.082 GB
<none> <none> f9f1e26352f0 23 hours ago 1.089 GB
tryout latest 2629d1fa0b81 23 hours ago 131.5 MB
<none> <none> 5ed6274db6ce 24 hours ago 1.089 GB
Listing the full length image IDs
$ sudo docker images --no-trunc | head
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
<none> <none> 77af4d6b9913e693e8d0b4b294fa62ade6054e6b2f1ffb617ac955dd63fb0182 19 hours ago 1.089 GB
committest latest b6fa739cedf5ea12a620a439402b6004d057da800f91c7524b5086a5e4749c9f 19 hours ago 1.089 GB
<none> <none> 78a85c484f71509adeaace20e72e941f6bdd2b25b4c75da8693efd9f61a37921 19 hours ago 1.089 GB
$ docker latest 30557a29d5abc51e5f1d5b472e79b7e296f595abcf19fe6b9199dbbc809c6ff4 20 hours ago 1.089 GB
<none> <none> 0124422dd9f9cf7ef15c0617cda3931ee68346455441d66ab8bdc5b05e9fdce5 20 hours ago 1.089 GB
<none> <none> 18ad6fad340262ac2a636efd98a6d1f0ea775ae3d45240d3418466495a19a81b 22 hours ago 1.082 GB
<none> <none> f9f1e26352f0a3ba6a0ff68167559f64f3e21ff7ada60366e2d44a04befd1d3a 23 hours ago 1.089 GB
tryout latest 2629d1fa0b81b222fca63371ca16cbf6a0772d07759ff80e8d1369b926940074 23 hours ago 131.5 MB
<none> <none> 5ed6274db6ceb2397844896966ea239290555e74ef307030ebb01ff91b1914df 24 hours ago 1.089 GB
Filtering 过滤
The filtering flag (-f or --filter) format is of "key=value". If there are more than one filter, then pass multiple flags (e.g., --filter "foo=bar" --filter "bif=baz")
Current filters: * dangling (boolean - true or false)
untagged images
$ sudo docker images --filter "dangling=true"
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
<none> <none> 8abc22fbb042 4 weeks ago 0 B
<none> <none> 48e5f45168b9 4 weeks ago 2.489 MB
<none> <none> bf747efa0e2f 4 weeks ago 0 B
<none> <none> 980fe10e5736 12 weeks ago 101.4 MB
<none> <none> dea752e4e117 12 weeks ago 101.4 MB
<none> <none> 511136ea3c5a 8 months ago 0 B
This will display untagged images, that are the leaves of the images tree (not intermediary layers). These images occur when a new build of an image takes the repo:tag away from the IMAGE ID, leaving it untagged. A warning will be issued if trying to remove an image when a container is presently using it. By having this flag it allows for batch cleanup.
Ready for use by docker rmi ..., like:
$ sudo docker rmi $(sudo docker images -f "dangling=true" -q)
8abc22fbb042
48e5f45168b9
bf747efa0e2f
980fe10e5736
dea752e4e117
511136ea3c5a
NOTE: Docker will warn you if any containers exist that are using these untagged images.