HN user
Nice one! Do you have any plans to support something else apart from Pager duty. I have been using Squadcast.com for my hobby project monitoring. Integration with that would be nice. I'm open to create a PR if you are interested.
We can add new rules to existing network tags(security groups). However, Adding new network tags to node pool require node-pool replacement at this time. That's pretty wierd.
IMO, lot of services are not matured enough. For eg: Changing roles or even a security group from GKE/Nodepool requires nodepool replacement. We need to take care of the complete node draining and adding the new nodepool. I too agree that GCP doesn't take customer feedbacks like AWS do.