IssueTracker

This will create a public issue which anybody can view and comment on.

Please provide as much information as possible. At least, this should include a description of your issue and steps to reproduce the problem. If possible please provide a summary of what steps or workarounds you have already tried, and any docs or articles you found (un)helpful.

Problem you have encountered:

The customer wants to have a clear monitoring solution for IP usage in Shared VPC environments.

What you expected to happen:

- alert for IP exhaustion in any subnet of the shared VPC we have
- check what is the component using a specific IP (compute instance, CloudSQL instance, etc)
- obtain metrics about IP usage changes
- obtain events/logs/data associated to IP assignment and usage across GCP resources (compute instances, load balancer, CloudSQL, etc). This is fundamental for any type of investigation associated to security or production issues.

Steps to reproduce:


Other information (workarounds you have tried, documentation consulted, etc):

Customer  ended up using the following script:
https://github.com/GoogleCloudPlatform/professional-services/tree/main/tools/gcp-ips

but it is of course limited in scope and does not provide a comprehensive solution for the entire topic.

Related cases:
go/vgo/49371938