Is Renovate able to detect updates in a remote regitry different from the one set in the Dockerfile ?

[javaxiss]

How are you running Renovate?

Self-hosted

If you're self-hosting Renovate, tell us what version of Renovate you run.

35.110.2

If you're self-hosting Renovate, select which platform you are using.

GitLab self-hosted

Was this something which used to work for you, and then stopped?

I never saw this working

Wanted end result.

Hello,

I want to update my dockerfiles with new tags from a remote public registry.

In a Dockerfile I can have the following as a base image:
FROM docker.myprivate-artifactory/new-images/team1/ubi/ubi8-minimal:8.7-1107

Is there Renovate settings, to detect new ubi8-minimal updates from another registry ex: registry.access.redhat.com/ubi8-minimal , or in the same private registry but from another path ex: docker.myprivate-artifactory/new-path/new-team/base-images/ubi8-minimal:8.7-1107?

What you tried so far.

I tried to use matchPackagePrefixes but I'm not sure it is the right way to do that. Renovate still fetching new dependencies in the private registry following the same image path.

Relevant debug logs

Logs

Copy/paste the relevant log(s) here, between the starting and ending backticks

[lmilbaum]

I think regex manager can work. Not sure though.

[viceice]

check registry aliases

[javaxiss]

Thank you ! Indeed registryAliases did the trick. However, I had to upgrade renovate to v36 on which a fix on registry aliases has been included 😉

[marwin1991]

@javaxiss How did you fix it?

[marwin1991]

@viceice maybe you can help? #23573

[javaxiss]

As suggested by @viceice I configured a registryAliases entry in my project renovate settings (renovate.json) :
"dockerfile": { "registryAliases": { "old.registry.local/old/path": "new.registry.local/new/images/path" } }

Renovate will look for new updates in new.registry.local/new/images/path instead of the old one that should be declared in your projects dockerfiles. The MR Renovate will create, are only related to new tags not the whole path since we use aliases. That was what I needed.

[javaxiss]

@viceice maybe you can help? #23573

in #23573, it would be a bug in Nexus or the Registry API. It seems like the same issue I'm having with Redhat public registry : #23481
Renovate fixes the tags number by default to n=1000 but the API is ignoring that parameter and still returning random 50 tags ...