Kubectl uses contexts to know which Kubernetes cluster to talk to.
To list all contexts:
$ kubectl config get-contexts
To select a given context:
$ kubectl config use-context CONTEXT_NAME
To specify the context on the command line:
$ kubectl --context CONTEXT_NAME get svc
I work as a freelancer, so if you don’t want to do that kind of things yourself or don’t have the time, just drop me a line to hire me.