RDS subnet group.
Filters all launch rds subnet groups that are not in use but exist
policies: - name: rds-subnet-group-delete-unused resource: rds-subnet-group filters: - unused
properties: type: enum: - unused required: - type
Action to delete RDS Subnet Group
It is recommended to apply a filter to the delete policy to avoid unwanted deletion of any rds subnet groups.
policies: - name: rds-subnet-group-delete resource: rds-subnet-group filters: - Instances:  actions: - delete
properties: type: enum: - delete required: - type