Clustermesh - Global Services - concept, count and names - getting and understanding?

[JWebDev]

Hi.

First of all I want to thank the developers for a wonderful and great product. This is the only product that has set up communication between clusters normally and it works.

To questions. I can't find information anywhere about how Cilium defines and counts “Global Services”. The thing is that I would like to add global services to monitoring and watch them so that if for some reason there is a failure, I can understand which service is not working.

I have 2 clusters and several global services are defined on each cluster.
APP cluster with 4 nodes. Has 3 global services to have services from INFRA cluster.
INFRA cluster with 2 nodes. Has 5 global services to have services from APP cluster.

Todays cilium_clustermesh_global_services metric values:

• Total cilium_clustermesh_global_services metric has 6 items(nodes)
• INFRA cluster nodes have value 11
• APP cluster nodes have value 14

Questions:

1. Is there any way to find out the names of global services using Prometheus metrics? I didn't find any information here, only the number of global services. https://docs.cilium.io/en/latest/observability/metrics/
2. Is it possible to find out the names of all global services in the cluster using the cilium agent command line?
3. Why does the cilium_clustermesh_global_services metric show completely different values? Why can these values change when I don't add or remove new global services?
4. Why a few days ago cilium_clustermesh_global_services metric in INFRA cluster was 12 and now it is 11? I have not deleted any services and so on. One node in INFRA cluster was not visible for some time.

Thanks for the help.