CloudFormation stack tag updates should propagate to all resources that are tagged BY cloudformation in the first place.
Observed Behavior
Changing a tag key results in no change to the replication instance tags
Deleting a tag key results in no change to the replication instance tags
Adding a new tag key to an already-tagged instance results in no change to the replication instance tags
Test Cases
Create a minimal replication instance in a template with a single tag defined at the command-line in CloudFormation: aws cloudformation deploy --template-file template.yml --stack-name replication-instances --tags mytag:testing=something
Update the stack with a different tag key and/or value: aws cloudformation deploy --template-file template.yml --stack-name replication-instances --tags mytag:othertag=banana
After the stack update, the tags have not changed: the new tag is not present, and the old tag is still there, even though the stack-level tags have changed
Adding a tag directly to the resource in the template and updating the stack DOES result in the in-template tag being applied, but command-line supplied tags are NOT applied after the initial creation.
Changing the tag directly on the resource in the template DOES result in the applied tag being changed, but again command-line supplied tags are NOT applied.
Name of the resource
AWS::DMS::ReplicationInstance
Resource Name
No response
Issue Description
Thanks to https://github.com/aws-cloudformation/cloudformation-coverage-roadmap/issues/1252 DMS replication instances now get tags when they are created -- but changing tag keys and values in the stack do not propagate the updates to the replication instances.
Expected Behavior
CloudFormation stack tag updates should propagate to all resources that are tagged BY cloudformation in the first place.
Observed Behavior
Changing a tag key results in no change to the replication instance tags Deleting a tag key results in no change to the replication instance tags Adding a new tag key to an already-tagged instance results in no change to the replication instance tags
Test Cases
aws cloudformation deploy --template-file template.yml --stack-name replication-instances --tags mytag:testing=somethingaws cloudformation deploy --template-file template.yml --stack-name replication-instances --tags mytag:othertag=bananaAfter the stack update, the tags have not changed: the new tag is not present, and the old tag is still there, even though the stack-level tags have changed
Adding a tag directly to the resource in the template and updating the stack DOES result in the in-template tag being applied, but command-line supplied tags are NOT applied after the initial creation.
Changing the tag directly on the resource in the template DOES result in the applied tag being changed, but again command-line supplied tags are NOT applied.
Other Details