message: use headless for all service names
diff: @@ -9,8 +9,8 @@ if [ -z "$POD_NAMESPACE" ]; then
  fi
  # clustering uses full hostnames, generate those
  -echo NODENAME=rabbit@${HOSTNAME}.${SERVICE_NAME}.${POD_NAMESPACE}.svc.cluster.local > /etc/rabbitmq/rabbitmq-env.conf
  -echo cluster_formation.k8s.hostname_suffix=.${SERVICE_NAME}.${POD_NAMESPACE}.svc.cluster.local >> /etc/rabbitmq/rabbitmq.conf
  +echo NODENAME=rabbit@${HOSTNAME}.${SERVICE_NAME}-headless.${POD_NAMESPACE}.svc.cluster.local > /etc/rabbitmq/rabbitmq-env.conf
  +echo cluster_formation.k8s.hostname_suffix=.${SERVICE_NAME}-headless.${POD_NAMESPACE}.svc.cluster.local >> /etc/rabbitmq/rabbitmq.conf
  echo cluster_formation.k8s.service_name=${SERVICE_NAME}-headless >> /etc/rabbitmq/rabbitmq.conf
  # start the server
  