b83e9df760
docker 1.10 change the output format of image id. Signed-off-by: hyzhou.zhy <hyzhou.zhy@alibaba-inc.com>
11 KiB
images
Usage: docker images [OPTIONS] [REPOSITORY[:TAG]]
List images
-a, --all Show all images (default hides intermediate images)
--digests Show digests
-f, --filter=[] Filter output based on conditions provided
--help Print usage
--no-trunc Don't truncate output
-q, --quiet Only show numeric IDs
The default docker images will show all top level
images, their repository and tags, and their size.
Docker images have intermediate layers that increase reusability,
decrease disk usage, and speed up docker build by
allowing each step to be cached. These intermediate layers are not shown
by default.
The SIZE is the cumulative space taken up by the image and all
its parent images. This is also the disk space used by the contents of the
Tar file created when you docker save an image.
An image will be listed more than once if it has multiple repository names
or tags. This single image (identifiable by its matching IMAGE ID)
uses up the SIZE listed only once.
Listing the most recently created images
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 77af4d6b9913 19 hours ago 1.089 GB
committ 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> 5ed6274db6ce 24 hours ago 1.089 GB
postgres 9 746b819f315e 4 days ago 213.4 MB
postgres 9.3 746b819f315e 4 days ago 213.4 MB
postgres 9.3.5 746b819f315e 4 days ago 213.4 MB
postgres latest 746b819f315e 4 days ago 213.4 MB
Listing images by name and tag
The docker images command takes an optional [REPOSITORY[:TAG]] argument
that restricts the list to images that match the argument. If you specify
REPOSITORYbut no TAG, the docker images command lists all images in the
given repository.
For example, to list all images in the "java" repository, run this command :
$ docker images java
REPOSITORY TAG IMAGE ID CREATED SIZE
java 8 308e519aac60 6 days ago 824.5 MB
java 7 493d82594c15 3 months ago 656.3 MB
java latest 2711b1d6f3aa 5 months ago 603.9 MB
The [REPOSITORY[:TAG]] value must be an "exact match". This means that, for example,
docker images jav does not match the image java.
If both REPOSITORY and TAG are provided, only images matching that
repository and tag are listed. To find all local images in the "java"
repository with tag "8" you can use:
$ docker images java:8
REPOSITORY TAG IMAGE ID CREATED SIZE
java 8 308e519aac60 6 days ago 824.5 MB
If nothing matches REPOSITORY[:TAG], the list is empty.
$ docker images java:0
REPOSITORY TAG IMAGE ID CREATED SIZE
Listing the full length image IDs
$ docker images --no-trunc
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> sha256:77af4d6b9913e693e8d0b4b294fa62ade6054e6b2f1ffb617ac955dd63fb0182 19 hours ago 1.089 GB
committest latest sha256:b6fa739cedf5ea12a620a439402b6004d057da800f91c7524b5086a5e4749c9f 19 hours ago 1.089 GB
<none> <none> sha256:78a85c484f71509adeaace20e72e941f6bdd2b25b4c75da8693efd9f61a37921 19 hours ago 1.089 GB
docker latest sha256:30557a29d5abc51e5f1d5b472e79b7e296f595abcf19fe6b9199dbbc809c6ff4 20 hours ago 1.089 GB
<none> <none> sha256:0124422dd9f9cf7ef15c0617cda3931ee68346455441d66ab8bdc5b05e9fdce5 20 hours ago 1.089 GB
<none> <none> sha256:18ad6fad340262ac2a636efd98a6d1f0ea775ae3d45240d3418466495a19a81b 22 hours ago 1.082 GB
<none> <none> sha256:f9f1e26352f0a3ba6a0ff68167559f64f3e21ff7ada60366e2d44a04befd1d3a 23 hours ago 1.089 GB
tryout latest sha256:2629d1fa0b81b222fca63371ca16cbf6a0772d07759ff80e8d1369b926940074 23 hours ago 131.5 MB
<none> <none> sha256:5ed6274db6ceb2397844896966ea239290555e74ef307030ebb01ff91b1914df 24 hours ago 1.089 GB
Listing image digests
Images that use the v2 or later format have a content-addressable identifier
called a digest. As long as the input used to generate the image is
unchanged, the digest value is predictable. To list image digest values, use
the --digests flag:
$ docker images --digests
REPOSITORY TAG DIGEST IMAGE ID CREATED SIZE
localhost:5000/test/busybox <none> sha256:cbbf2f9a99b47fc460d422812b6a5adff7dfee951d8fa2e4a98caa0382cfbdbf 4986bf8c1536 9 weeks ago 2.43 MB
When pushing or pulling to a 2.0 registry, the push or pull command
output includes the image digest. You can pull using a digest value. You can
also reference by digest in create, run, and rmi commands, as well as the
FROM image reference in a Dockerfile.
Filtering
The filtering flag (-f or --filter) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., --filter "foo=bar" --filter "bif=baz")
The currently supported filters are:
- dangling (boolean - true or false)
- label (
label=<key>orlabel=<key>=<value>)
Untagged images (dangling)
$ docker images --filter "dangling=true"
REPOSITORY TAG IMAGE ID CREATED 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 as <none>:<none> or 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:
$ docker rmi $(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.
Labeled images
The label filter matches images based on the presence of a label alone or a label and a
value.
The following filter matches images with the com.example.version label regardless of its value.
$ docker images --filter "label=com.example.version"
REPOSITORY TAG IMAGE ID CREATED SIZE
match-me-1 latest eeae25ada2aa About a minute ago 188.3 MB
match-me-2 latest eeae25ada2aa About a minute ago 188.3 MB
The following filter matches images with the com.example.version label with the 1.0 value.
$ docker images --filter "label=com.example.version=1.0"
REPOSITORY TAG IMAGE ID CREATED SIZE
match-me latest eeae25ada2aa About a minute ago 188.3 MB
In this example, with the 0.1 value, it returns an empty set because no matches were found.
$ docker images --filter "label=com.example.version=0.1"
REPOSITORY TAG IMAGE ID CREATED SIZE
Formatting
The formatting option (--format) will pretty print container output
using a Go template.
Valid placeholders for the Go template are listed below:
| Placeholder | Description |
|---|---|
.ID |
Image ID |
.Repository |
Image repository |
.Tag |
Image tag |
.Digest |
Image digest |
.CreatedSince |
Elapsed time since the image was created. |
.CreatedAt |
Time when the image was created. |
.Size |
Image disk size. |
When using the --format option, the image command will either
output the data exactly as the template declares or, when using the
table directive, will include column headers as well.
The following example uses a template without headers and outputs the
ID and Repository entries separated by a colon for all images:
$ docker images --format "{{.ID}}: {{.Repository}}"
77af4d6b9913: <none>
b6fa739cedf5: committ
78a85c484f71: <none>
30557a29d5ab: docker
5ed6274db6ce: <none>
746b819f315e: postgres
746b819f315e: postgres
746b819f315e: postgres
746b819f315e: postgres
To list all images with their repository and tag in a table format you can use:
$ docker images --format "table {{.ID}}\t{{.Repository}}\t{{.Tag}}"
IMAGE ID REPOSITORY TAG
77af4d6b9913 <none> <none>
b6fa739cedf5 committ latest
78a85c484f71 <none> <none>
30557a29d5ab docker latest
5ed6274db6ce <none> <none>
746b819f315e postgres 9
746b819f315e postgres 9.3
746b819f315e postgres 9.3.5
746b819f315e postgres latest