Any API or Web UI project to manage a Docker private registry?

Question

I can\'t find how to manage images in a private registry. I can push or pull an image because i know the id but how to get the list of pushed images ?

Take for example

Answer 1

Thanks Thomas !

To allow the use of the search API, you must start the container by specifying the value of the environment variable SEARCH_BACKEND like this :

docker run -d -e SEARCH_BACKEND=sqlalchemy -p 5000:5000 --name registry samalba/docker-registry

Then i have a result for this query :

GET http://registry_host:5000/v1/search?q=base

Result :
{ 
   "num_results": 1, 
   "query": "base", 
   "results": [{"description": "", "name": "test/base-img"}]
}

To list all images, you can do this :

GET http://registry_host:5000/v1/search

Result :
{ 
   "num_results": 2, 
   "query": "", 
   "results": [
       {"description": "", "name": "test/base-img"},
       {"description": "", "name": "test/base-test"}]
}

And to know the available versions of an image :

GET http://localhost:5000/v1/repositories/**test/base-img**/tags

Result :
{
  "0.1": "04e073e1efd31f50011dcde9b9f4d3148ecc4da94c0b7ba9abfadef5a8522d13",
  "0.2": "04e073e1efd31f50011dcde9b9f4d3148ecc4da94c0b7ba9abfadef5a8522d13",
  "0.3": "04e073e1efd31f50011dcde9b9f4d3148ecc4da94c0b7ba9abfadef5a8522d13"
}

Answer 2

Sonatype Nexus Repository Manager 3.0 has Private Registry for Docker

Answer 3

I've written a docker-registry-frontend that you can find on github. It allows you to browse your private registry and do almost everything that is available through the Docker registry API v1. Plus, it can be run as a docker container on its own.

Here's a list of basic features with some screenshots: https://github.com/kwk/docker-registry-frontend/wiki/Features. In addition to these features, there's support for SSL encryption and Kerberos authentication.

Answer 4

As far as I see, the Docker registry has a REST API, very similar to Docker itself. You can find the documentation at http://docs.docker.io/reference/api/registry_api/. But on the first glance I don't see a method to just list all images.

There is also an REST API for the official index (infos at http://docs.docker.io/reference/api/docker-io_api/).

EDIT

I just tested the Docker registry API and it is not so self-explanatory. You can query all images of a certain repository. In my case, my repository is called "thomas/busybox". I can query all images in there by calling:

https://my-private-registry.com/v1/repositories/thomas/busybox/images

Result:

[
  {
    "id": "2d8e5b282c81244037eb15b2068e1c46319c1a42b80493acb128da24b2090739"
  },
  {
    "id": "6c991eb934609424f761d3d0a7c79f4f72b76db286aa02e617659ac116aa7758"
  },
  {
    "id": "9f4e93171ec525221fa9013d0e21f8690cef68590664eb5249e0b324c5faf31a"
  },
  {
    "id": "511136ea3c5a64f264b78b5433614aec563103b4d4702f3ba7d4d2698e22c158"
  }
]

Now I know that I have four images in my repository and I can query every image. The query for the first image would be:

https://my-private-registry.com/v1/images/2d8e5b282c81244037eb15b2068e1c46319c1a42b80493acb128da24b2090739/json

Result:

{
  "id": "2d8e5b282c81244037eb15b2068e1c46319c1a42b80493acb128da24b2090739",
  "parent": "9f4e93171ec525221fa9013d0e21f8690cef68590664eb5249e0b324c5faf31a",
  "created": "2014-04-24T15:59:59.47081913Z",
  "container": "d15320d6935ca35bc4198e373f29e730f4c53cce32b3809c2fecec22eb30018b",
  "container_config": {
    "Hostname": "4964db5b599b",
    ...
    "Tty": false,
    "OpenStdin": false,
    "StdinOnce": false,
    "Env": [
      "HOME=\/",
      "PATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin"
    ],
    "Cmd": [
      "\/bin\/sh",
      "-c",
      "#(nop) CMD [\/bin\/sh -c \/bin\/sh]"
    ],
    "Image": "9f4e93171ec525221fa9013d0e21f8690cef68590664eb5249e0b324c5faf31a",
    ...
    "OnBuild": [

    ]
  },
  "docker_version": "0.10.0",
  "author": "J\u00c3\u00a9r\u00c3\u00b4me Petazzoni <jerome@docker.com>",
  "config": {
    "Hostname": "4964db5b599b",
    "Domainname": "",
    "User": "",
    "Memory": 0,
    ...
    "Env": [
      "HOME=\/",
      "PATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin"
    ],
    "Cmd": [
      "\/bin\/sh",
      "-c",
      "\/bin\/sh"
    ],
    "Image": "9f4e93171ec525221fa9013d0e21f8690cef68590664eb5249e0b324c5faf31a",
    ...
    "OnBuild": [

    ]
  },
  "architecture": "amd64",
  "os": "linux",
  "Size": 0
}

You can also search for an image, but I do not get any results:

https://my-private-registry.com/v1/search?q=thomas

Result:

{"num_results": 0, "query": "thomas", "results": []}

Answer 5

Are there any open source projects to manage this ?

There is a containerized web application that provides administration of one-to-many private registries. Its name is Docker Registry UI and it is FOSS.

The source is on Github and you can run it in a container like so:

docker run -p 8080:8080 -v my_data_dir:/var/lib/h2/ atcol/docker-registry-ui

Disclaimer: I wrote the web-app as I could not find one myself. I believe this answers your question (as quoted).

Answer 6

I want to present for you, my frontend for private registry, you may try it from github or dockerhub. Also you can find interface screenshots there.

To sum up it has:
- internal db (BoltBD) gives it ability to store info, and as result it responses much more faster then after direct api call like in other projects
- app can pars, store and show info from registry such as:
- image layers info:
- name / tag
- image size and pushes number
- upload and push dates
- image creating commands history
- it is possible to set multiple repositories in case you have more than one registries and observe them in one place
- show statistics pretty, draw curves for uploads number and image sizes for tag with respects to dates

---

Update 2017-02-15
So far also there was added:

• find a parent
• show tree-graph of parents
• image deletion
• Bearer token auth support