Build a docker image FROM a private github image

1

Is it possible to build a docker image using a private image as the base?

I built my image using a github action, and now i want to use this as the basis of another docker image that would be built from Render.

Aug 18 01:32:41 PM    54 | >>> FROM ghcr.io/xxx/docker-images:sha256-xxx073d3f459d95e2c3616f06a0a44574c3927ff9ce.sig
Aug 18 01:32:41 PM  --------------------
Aug 18 01:32:41 PM  error: failed to solve: ghcr.io/xxx/docker-images:sha256-xxx073d3f459d95e2c3616f06a0a44574c3927ff9ce.sig: failed to authorize: failed to fetch anonymous token: unexpected status: 401 Unauthorized
Aug 18 01:32:41 PM  error: exit status 1

Is there a way to authentify with Github?

2

Hi Jérôme,

We recently released Deploy a Docker Image functionality as an early access feature.

You can enable this from your Account or Team settings page.

Regards,

Matt

3

That is what I tried, but it seems like i can only deploy those private images as-is, not as a basis of a dockerfile that would be “finished” on render.

Did I understand correctly?

4

Hi Jérôme,

Oh sorry, I misunderstood.

We don’t support the ability to use private images in a Dockerfile. I’d encourage you to submit a feature request at https://feedback.render.com/features/p/pulling-private-docker-images-during-image-building.

We rely heavily on customer feedback as a part of our planning and product roadmap process, so capturing interest on the feature request page is very helpful.

Regards,

Matt

5

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