GitLab CI - include project ENV_VARIABLE support

[rarkins]

For gitlabci/gitlabci-include managers, if depName/packageName match an env pattern (e.g. $SOME_VAR) then we should look for the presence of that variable in env and replace it if so.

Discussed in #32509

^{Originally posted by Mazorius November 13, 2024}

How are you running Renovate?

Self-hosted Renovate

If you're self-hosting Renovate, tell us which platform (GitHub, GitLab, etc) and which version of Renovate.

GitLab

Please tell us more about your question or problem

Hi,

we create in our self-hosted GitLab instance a CI/CD job library which can be imported like this:

include:
  - project: $INSTANCE_VARIABLE
    ref: '0.1.0'
    file: path/to/job-template.yaml

Renovate cannot resolve the $INSTANCE_VARIABLE and find therefore new tags in a GitLab project.

I added it as customEnvVariables but that does not help.

Any idea how I can got this fixed?

Logs (if relevant)

Logs

2024-11-29T07:03:41.865490Z 01O        "config": {
2024-11-29T07:03:41.865497Z 01O          "gitlabci-include": [
2024-11-29T07:03:41.865506Z 01O            {
2024-11-29T07:03:41.865519Z 01O              "deps": [
2024-11-29T07:03:41.865525Z 01O                {
2024-11-29T07:03:41.865534Z 01O                  "datasource": "gitlab-tags",
2024-11-29T07:03:41.865548Z 01O                  "depName": "$INSTANCE_VARIABLE",
2024-11-29T07:03:41.865555Z 01O                  "depType": "repository",
2024-11-29T07:03:41.865565Z 01O                  "currentValue": "main",
2024-11-29T07:03:41.865579Z 01O                  "registryUrls": ["https://gitlab.example.com"],
2024-11-29T07:03:41.865586Z 01O                  "updates": [],
2024-11-29T07:03:41.865596Z 01O                  "packageName": "$INSTANCE_VARIABLE",
2024-11-29T07:03:41.865611Z 01O                  "versioning": "semver-coerced",
2024-11-29T07:03:41.865618Z 01O                  "warnings": [],
2024-11-29T07:03:41.865627Z 01O                  "skipReason": "invalid-value"
2024-11-29T07:03:41.865640Z 01O                }
2024-11-29T07:03:41.865646Z 01O              ],
2024-11-29T07:03:41.865656Z 01O              "packageFile": ".gitlab-ci.yml"
2024-11-29T07:03:41.865669Z 01O            }
2024-11-29T07:03:41.865675Z 01O          ],


 WARN: Package lookup failures (repository=repo/path/project)
       "warnings": ["Failed to look up gitlab-tags package $INSTANCE_VARIABLE"],
       "files": [
         "src/pipeline/.gitlab-ci.yml"