Scanning docker-compose.yml with image versions fetched *exclusively* from the .env file

[green-ninja]

What would you like help with?

I would like help with my configuration

How are you running Renovate?

Mend Renovate hosted app on github.com

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

No response

Please tell us more about your question or problem

If you define docker-compose.yml to get image versions from the .env file exclusively, as following:

services:
  _some-service_:
    image: "_creator_of/some-service_:${IMAGE_VERSION}"

and .env file with a value such as:

IMAGE_VERSION=202408020605

Renovatebot will not work by default.

I found some other Issues/Discussions that use similar format, but they had a default image tag as a fallback. So the default image tag was then scanned by Renovatebot, the environment variable was just ignored.

Is there any way to make a configuration such as the above one to work?

Logs (if relevant)

Logs

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[github-actions[bot]]

Hi there,

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[venturangit]

I'm experiencing the same problem. Here's a portion of my log file for your analysis.

           {
             "deps": [
               {
                 "skipReason": "invalid-name",
                 "replaceString": "${IMAGE_VERSION}",
                 "autoReplaceStringTemplate": "{{depName}}{{#if newValue}}:{{newValue}}{{/if}}{{#if newDigest}}@{{newDigest}}{{/if}}",
                 "datasource": "docker",
                 "updates": []
               }
             ],
             "packageFile": "Teststack2/compose.yaml"
           }

[rarkins]

I can confirm this would need new code to work. Please convert the above to a minimal reproduction (see instructions below) so that it can be converted to an issue

[venturangit]

I appreciate your timely response. Can you reproduce the issue using the repository at https://github.com/venturangit/30561?

[github-actions[bot]]

Hi there,

Get your discussion fixed faster by creating a minimal reproduction. This means a repository dedicated to reproducing this issue with the minimal dependencies and config possible.

Before we start working on your issue we need to know exactly what's causing the current behavior. A minimal reproduction helps us with this. Discussions without reproductions are less likely to be converted to Issues.

Please follow these steps:

1. Read our guide on creating a minimal reproduction.
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[rarkins]

Converted to issue: #31685