How to filter an instance based on empty tag value??

[nitin kumar Itare]

Hi All, I am trying to find out the instance which have "Test_Tagcc" tag and having no values.
Below is the policy. Can you please help me out what is the issue with it.
when i do the dry run it lists all the instances.

policies:

• name: ec2-tag-compliance
  mode:
  role: arn:aws:iam::{AccountID}:role/CloudCustodian
  type: periodic
  schedule: 'cron(0/5 * * * ? *)'
  resource: ec2
  comment: |
  Find all (non-ASG) instances that are not conformant
  to tagging policies, and stop them.
  filters:
•   "tag:Test_Tagcc": empty

[Kapil Thangavelu]

if you switch empty to `absent` that will work for this use case. empty is for a tag/key thats present but has no value, like an empty string.  absent is for the lack of a tag/key on a resource.

Cheers,

Kapil