Kubernetes cannot access cassandra database
How did you configure your endpoint? Generally, all services and pods in a Kubernetes cluster are discoverable through a standard DNS notation. It looks like this:
<service-name>.<namespace>.svc.cluster.local # or<pod-name>.<namespace>.svc.cluster.local # or<pod-name>.<subdomain>.<namespace>.svc.cluster.localIf you are within the same namespace this would work too:
<service-name><pod-name><pod-name>.<subdomain>I would also check either core-dns or kube-dns are running and ready:
kubectl -n kube-system get pods | grep dns