KafkaServer {
  org.apache.kafka.common.security.plain.PlainLoginModule required
  username="admin"
  password="admin-secret"
  user_admin="admin-secret"
  user_kafkaclient="client-secret";
};

Server {
  org.apache.zookeeper.server.auth.DigestLoginModule required
  username="admin"
  password="admin-secret"
  user_zooclient="client-secret";
};

Client {
  org.apache.zookeeper.server.auth.DigestLoginModule required
  username="zooclient"
  password="client-secret";
};