Minimal reproducer for Kustomize image support in ArgoCD Application manifests

This is a minimal reproducer requested as part of discussion#23848.

Current behavior as of Renovate 37.221.1

The entry in application-kustomize.yaml spec.source.kustomize.images is not updated even though there is a newer version for this image (see here).

Expected behavior

Renovate updates ghcr.io/j-be/desec-dns-operator to its most recent version.

Steps to reproduce

Requirements

npm

Steps

Clone this repo
npm install renovate
LOG_LEVEL=DEBUG npx renovate --platform=local

The log should now contain something like:

DEBUG: packageFiles with updates (repository=local)
       "config": {
         "argocd": [
          {
             "deps": [
               {
                 "depName": "ghcr.io/j-be/desec-dns-operator",
                 "currentValue": "0.1.7",
                 "datasource": "docker",
                 "updates": [
                   {
                     "bucket": "non-major",
                     "newVersion": "0.1.9",
                     "newValue": "0.1.9",
                     "newMajor": 0,
                     "newMinor": 1,
                     "updateType": "patch",
                     "branchName": "renovate/ghcr.io-j-be-desec-dns-operator-0.x"
                   }
                 ],
               }
             ],
           }
         ]
       }

Known workaround

This can currently be achieved by adding the following to renovate.json:

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  ...
  "customManagers": [
    {
      "customType": "regex",
      "fileMatch": [
        ".*"
      ],
      "matchStrings": [
        "\\s+-\\s+.*=(?<depName>.+):(?<currentValue>.+)"
      ],
      "datasourceTemplate": "docker"
    }
  ]
}

Note however, that this does not cover special cases, like e.g. quotes.