Log spam (and higher cpu usage) due to postgres-operator

[thoro]

What happened?
zalando/postgres-operator users the annotations of the main db service service as a keep alive token. This causes an endpoints update for kube-router.
It will spam the output with lines like:

I0330 09:11:58.326271       1 network_services_controller.go:1106] Skipping service name:live-bitbucket-database namespace:atlassian as there is no cluster IP

etc. every second

What did you expect to happen?

Do not consider updates to annotations relevant, since they are not used in building the endpoint information anyways. This means they can be safely ignored

How can we reproduce the behavior you experienced?
Steps to reproduce the behavior:

1. Create a service
2. Update the services annotations
3. Kube-router will recheck all the services on all nodes

** System Information (please complete the following information):**

• Kube-Router Version (kube-router --version): [e.g. 1.0.1] 1.5.3
• Kube-Router Parameters: [e.g. --run-router --run-service-proxy --enable-overlay --overlay-type=full etc.]

•      - "--run-router=false"
       - "--run-firewall=false"
       - "--enable-overlay=false"
       - "--run-service-proxy=true"
       - "--ipvs-sync-period=1m"
       - "--masquerade-all=true"
       - "--enable-pod-egress=false"
       - "--enable-cni=false"
       - "--metrics-port=8081"
       - "--metrics-path=/metrics"
       - "-v=2"
  

- Kubernetes Version (`kubectl version`) : [e.g. 1.18.3] 1.24.12
- Cloud Type: [e.g. AWS, GCP, Azure, on premise] on premise
- Kubernetes Deployment Type: [e.g. EKS, GKE, Kops, Kubeadm, etc.] manual
- Kube-Router Deployment Type: [e.g. DaemonSet, System Service] DaemonSet
- Cluster Size: [e.g. 200 Nodes] 10

[thoro]

See #1459 for possible fix

[aauren]

Seems reasonable. I commented on the PR that you submitted. Thanks for looking into this and submitting a fix!

[aauren]

Fixed via #1461

[aauren]

I'll try to do a new RC release either this week or next to incorporate the change. Thanks again for your contribution!