Replace substring in package name/branchName

[jpgoelz]

How are you running Renovate?

Self-hosted

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

37.90.1

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

GitLab self-hosted

What is your question?

In our company, we are using a Docker proxy to reduce the amount of images downloaded from the Docker hub directly.

This means, all our images are declared using the Docker registry URL like, e.g.,

FROM harbor.example.com/docker/library/nginx:1.25.3-alpine-slim

in Dockerfiles or

image: harbor.example.com/docker/library/maven:3.9.5-eclipse-temurin-17

in our .gitlab-ci.yml.

This leads to Renovate adding the URL-prefix to the package name and thus to the title, and branch names as well:

Is there a way to remove the "harbor.example.com/docker/library/" part?

I tried to at least remove it from the branchTopic by trying to invoke the replace function in handlebars as mentioned in the docs like as follows, because we have a character limit of 65 characters which is often exceeded.

{
  // Remove the Docker proxy url from the branch name.
  matchPackagePatterns: ["^harbor.example.com/docker/library/"],
  branchName: "{{{branchPrefix}}}{{{additionalBranchPrefix}}}{{{replace 'harbor\.example\.com-docker-library-' '' branchTopic}}}",
},

This did not work (Is there some kind of mistake, perhaps?).

[viceice]

try registry aliases

https://docs.renovatebot.com/configuration-options/#registryaliases

[viceice]

registry aliases need to be at config root

[jpgoelz]

Ooooh, I see. 🤦 You mean, instead of

  dockerfile: {
    registryAliases: {
      "docker.io": "harbor.example.com/docker",
    },
  },

use

  registryAliases: {
    "docker.io": "harbor.example.com/docker",
  },

directly?

This has had no effect either. Again, I tried this in the project's renovate.json5 as well as the config.js of our self-hosted Renovate instance.

[viceice]

please create a minimal reproduction.

what are the logs saying about detected dependencies?

[jpgoelz]

I got it working now. It seems that I had to reverse the aliases from
"docker.io": "harbor.example.com/docker" to "harbor.example.com/docker": "docker.io"!

The Packages are now displayed as docker.io/... While in the code, only the version is updated. 🎉

[jpgoelz]

This is fine so far, although I would prefer it if the repository was not listed at all (just library/eclipse-temurin instead of docker.io/library/eclipse-temurin). I tried "harbor.example.com/docker": "", but it would then say

WARN: Package lookup failures

{
  "warnings": [
    "Failed to look up docker package harbor.example.com/docker/library/eclipse-temurin",
  ]
  "files": [
    ".gitlab-ci.yml"
  ]
}

[jpgoelz]

Oh, and thank you for your help, of course!