I was trying to use embedded mode Hazelcast in Kubernetes env. However, I found that the nodes did not form a cluster. I am confused that if the code I use is incorrect or there is something I ignored. My application.yaml goes as follows:

mode: embedded
embedded:
  port: 16701
  kubernetes:
    enabled: true
    serviceDns: hazelcast-service.default.svc.cluster.local

And the method I configured my embedded Hazelcast goes as follows:

Config config = new Config();
config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
config.getNetworkConfig().getJoin().getKubernetesConfig().setEnabled(true)
  .setProperty("service-dns", "hazelcast-service.default.svc.cluster.local");

I followed the README in this Hazelcast Discovery Plugin for Kubernetes

Also, even though I follow the above GitHub instruction, I found that the piece of code I posted does not come from hazelcast-kubernetes dependencies, hazelcast-all instead.