[Docker V2] Support private distribution repo

[Skiepp]

This plugin can list docker images from DockerHub only.

It will be great to have it support private registries (non-docker hub) as well, which is the de-facto standandard for enterprise companies.

Documentation: https://distribution.github.io/distribution/spec/api/

Basically the api call changes from:
/docker/v2/namespaces/${url.organization}/repositories/${url.repository}/tags

To:
/docker/v2/${image_name}/tags/list

As for the authentication, it can be done by using an Oauth2 Bearer token, just like DockerHub

[pascalwilbrink]

Thank you for your request:)
I will take a look at it

[pascalwilbrink]

Hi @Skiepp,

can you try this version?
https://www.npmjs.com/package/@workm8/backstage-docker-tags/v/1.1.0-alpha

You can specify the Registry like following:

metadata:
  name: Grafana
  annotations:
    docker.com/repository: 'grafana/grafana'
    docker.com/registry: 'Docker'

Currently, you can choose between Docker and GitHub (Case sensitive).

[Skiepp]

Hi @pascalwilbrink
Thanks for reaching me so fast! 🥇

Can you check if the package had been correctly pushed to npm?
I cannot see the "dist" folder inside the package.

---

In addition, how are used the Docker and GitHub options? If I understand correctly:

• Docker is for DockerHub
• GitHub is for the DockerV2 registry (like GitHub i think)

Wouldn't be better something like:

• DockerHub for Dockerhub
• DockerV2 for others

It's just a suggestion to make the configuration easier to read.

---

Is the code in the CNCF_HTTP_API branch?
I can help you if you need, I just need a little hint on how to build it

Thanks a lot, Skiepp

[Skiepp]

Hi @pascalwilbrink,
I'd like to help you on supporting this feature, by submitting a PR.
Anyway, I could not find in GH the current code of 1.1.0-alpha (released on npm)

Can I ask you to push the updated code, so that I can implement this feature on the updated one?

Thanks a lot

[Skiepp]

Hi @pascalwilbrink,
just a gentle reminder about this.

Thanks for your time!