From a18a18367f592c332a0fcbe9629520fe67be2a48 Mon Sep 17 00:00:00 2001
From: Ian Chakeres <ian.chakeres@gmail.com>
Date: Tue, 18 Jul 2017 18:43:45 -0700
Subject: [PATCH] Check whether NODE_LOCAL_SSDS=0 and handle this case
 appropriately.

Some versions of seq will count down from 1 if "seq 0" is specified
---
 cluster/gce/util.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cluster/gce/util.sh b/cluster/gce/util.sh
index ed509660fc..9599ede705 100755
--- a/cluster/gce/util.sh
+++ b/cluster/gce/util.sh
@@ -576,9 +576,13 @@ function create-node-template() {
 
   local local_ssds=""
   if [[ ! -z ${NODE_LOCAL_SSDS+x} ]]; then
+    # The NODE_LOCAL_SSDS check below fixes issue #49171
+    # Some versions of seq will count down from 1 if "seq 0" is specified
+    if [[ ${NODE_LOCAL_SSDS} -ge 1 ]]; then
       for i in $(seq ${NODE_LOCAL_SSDS}); do
-          local_ssds="$local_ssds--local-ssd=interface=SCSI "
+        local_ssds="$local_ssds--local-ssd=interface=SCSI "
       done
+    fi
   fi
 
   local network=$(make-gcloud-network-argument \