Merge pull request #37381 from jszczepkowski/ha-rm-exact

Automatic merge from submit-queue

HA master: configurable replica name during kube-down.

cluster/gce/util.sh

@@ -1312,7 +1312,7 @@ function kube-down() {
     done
   fi
 
-  local -r REPLICA_NAME="$(get-replica-name)"
+  local -r REPLICA_NAME="${KUBE_REPLICA_NAME:-$(get-replica-name)}"
 
   set-existing-master