Writing custom rules to apply on Dockerfile?

[JaneX8]

Describe the bug
Can I write custom rules that match Dockerfile? For docker-compose.yml files I suppose I can just use "applies_to": ["yaml"] but for Dockerfile (without file extension) is this possible?

[JaneX8]

If this is not yet possible. Maybe a solution for custom rules could be another type of matcher. Not based on file extension but exact filename. This could be helpful for such cases like Dockerfile.

[gfs]

Have you tried with applies_to_file_regex? File types are determined by extension, so I'm not sure its possible to define a something in the languages.json (to use the regular applies_to field that would do this without code changes), but I think it should work when using the file regex.

https://github.com/microsoft/ApplicationInspector/blob/c84796ae8120f835165bc98d182fa9fb9540e87d/AppInspector.RulesEngine/Rule.cs#L83