How to check naming convention for tag keys

[Jeinhaus]

How can I validate that tag keys match a particular naming convention

I'm just starting out with terraform-compliance and it's awesome. Thank you for this project :tada:

But I'm struggling with defining naming conventions for resource tag keys. I would like to validate, that each tag defined matches a certain regular expression.

I have the following Scenario defined right now:

Scenario: Ensure that tag keyss are all lowercase with hyphens separating words and colons separating namespaces
    Given I have resource that supports tags defined
    Then it must contain tags
    And its value must match the "^(([a-z\d-]+[^-:]:)*[^:-]+)|Name$" regex

This also matches the tags values, so for example a tag definition of

"tags":{
  "Name":"application-environment-foo",
  "mycompany:owner":"[email protected]",
  "mycompany:project-id":"foo"
}

is rejected, because the regex is also applied to the values of each tag key.

Is there a way to only match the regex on the tags keys?

[byarbrough]

This example shows how to explicitly define acceptable tag names... struggling to use it with a regex https://terraform-compliance.com/pages/Examples/tags_related.html#ensure-that-specific-tags-are-defined