Confusion about tags / Tagging the Stack itself

[rh-km]

I am struggling to find a way to apply a tag to the CloudFormation Stack resource, but do not apply it to said stacks children. The use case is as follows:

• We want to tag our stacks with a version number, to track what version of the stack is deployed.
• This version number changes frequently, even if the underlying code for the stack might not change.
• There is a non-negligible runtime to running a cdk deploy when the only diff is on a tag for all resources.

Given the above, the "default" path of tagging a stack and all its resources with this version number is not ideal for us. The goal then would be to apply the version tag to just the stack. This would be viewable in the console (in the tags section) and in aws cloudformation describe-stacks.

I have tried a variety of approaches and nothing seems to work. A few highlights:

• Tags.of(self).add has include_resource_types and exclude_resource_types which seem like they could be useful here.
• It does not seem that AWS::CloudFormation::Stack (the resource type for a stack) works / is interpreted properly here. I found a github issue in the repo that referenced a type like aws:cdk:stack. I could not find this in the documentation but it does seem to work.

Things I have tried (all in python):

# standard approach, adds tag to stack but applies to all resources, as expected
Tags.of(self).add('code-version', 'v1')

# does not work, tag is not applied to anything
Tags.of(self).add('code-version', 'v1', include_resource_types=['AWS::CloudFormation::Stack'])

# does work, but tag is applied to anything
Tags.of(self).add('code-version', 'v1', include_resource_types=['aws:cdk:stack'])

[rh-km]

I also tried the "add then remove" approach, same as above self is the stack:

Tags.of(self).add(key='code-version', value=code_version)
Tags.of(self).remove(key='code-version', exclude_resource_types=['AWS::CloudFormation::Stack']) # and with 'aws:cdk:stack'

Same behavior, tag is added everywhere