How can I find what IP block is used by the api-service (or whatever other component is responsible) to dole out the service IPs, from a live cluster.
We use a self managed Kubernetes cluster deployed on AWS using terraform. The networking is managed by Calico. However from what I have read it seems like calico is only responsible for the pod and container IPs.
This is a variable passed to your kube-apiserver at initial runtime, for example:
--service-cluster-ip-range=10.3.0.0/20
You can run below command, and in the output you will find your cluster ip range like --service-cluster-ip-range=x.x.x.x/x
kubectl cluster-info dump | grep --color service-cluster-ip-range