How to search images from private 1.0 registry in docker? [closed]

Answer 1

Currently there's no search support for Docker Registry v2.

There was a long-running thread on the topic. The current plan is to support search with an extension in the end, which should be ready by v2.1.

As a workaround, execute the following on the machine where your registry v2 is running:

> docker exec -it <your_registry_container_id> bash
> ls /var/lib/registry/docker/registry/v2/repositories/

The images are in subdirectories corresponding to their namespace, e.g. jwilder/nginx-proxy

Answer 2

List all images

docker search <registry_host>:<registry_port>/

List images like 'vcs'

docker search <registry_host>:<registry_port>/vcs

Answer 3

Currently AFAIK there is no easy way to do this as this information should be stored by index which private registry doesn't have. But depending on how you started registry you have 2 options:

1. if you started registry without -v to store data in separate host folder you can try with docker diff <id_of_registry_container> with this you should get info about changes in container fs. All pushed images should be somewhere in /tmp/registry/repositories/
2. if you started registry with -v just check content of mounted directory on host

If you used "centos" as name it should be in /tmp/registry/repositories/library/centos. This folder will contain text files which describes image structure. Actual data is in /tmp/registry/images/.

Answer 4

Another method in one line (substitute your actual path/ports if needed).

Example: Assume a generic registry:2.0 start up, the running registry container has a log file that holds images and tag names. I extrapolate the data like this:

grep -r -o "vars\.name=.* vars.reference=.*" /var/lib/docker/containers/* | cut -c 167-225 | sed 's/ver.*$//' | sed 's/vars\.name=//' | sed 's/ vars\.reference=/:/' | sort -u

You may need to tweak the cut values to get the output desired.

Answer 5

Modifying the answer from @mre to get the list just from one command (valid at least for Docker Registry v2).

docker exec -it <your_registry_container_id> ls -a /var/lib/registry/docker/registry/v2/repositories/

Answer 6

Was able to get everything in my private registry back by searching just for 'library':

docker search [my.registry.host]:[port]/library

Returns (e.g.):

NAME                    DESCRIPTION   STARS     OFFICIAL   AUTOMATED
library/custom-image                  0                    
library/another-image                 0                    
library/hello-world                   0