Ignite cluster on kuberntes
Well, from the error, it seems that the default K8s service is not working or probably doesn't exist:
Caused by: java.net.UnknownHostException: kubernetes.default.svc.cluster.localPlease, check the following documentation: https://apacheignite.readme.io/docs/kubernetes-ip-finder. By default Kubernetes IP Finder tries to reach the "/kubernetes.default.svc.cluster.local:443" that might not be true in your case. I think you need to check your URL and adjust the parameter:
setMasterUrl(String) Sets the host name of the Kubernetes API server. https://kubernetes.default.svc.cluster.local:443
Could you also add some notes about your deployment or k8s version to the question?