Problem: Need to create a Datadog dashboard where I can only show EC2 instances which do not have tag "terraform-managed:true" at all.
What did I try : I tried below query taking reference from https://stackoverflow.com/a/61015284/11880679 but it seems to be not working : avg:aws.ec2.host_ok{!terraform-managed:true}
What is expected to happen : It should only show instances which do not have above tag (key/value pair)
What actually resulted : It still shows instances which actually have that tag
