From 5ec42e6a25c29bb4a63cd4e5829ca74a59cf386a Mon Sep 17 00:00:00 2001
From: Amey Deshpande <ameyd@google.com>
Date: Tue, 13 Dec 2016 13:41:54 -0800
Subject: [PATCH] Ensure the GCI metadata files do not have whitespace at the
 end

Fixes #36708
---
 cluster/gce/gci/helper.sh | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/cluster/gce/gci/helper.sh b/cluster/gce/gci/helper.sh
index 4079776393d..e0486c80c7b 100755
--- a/cluster/gce/gci/helper.sh
+++ b/cluster/gce/gci/helper.sh
@@ -21,18 +21,12 @@
 #   KUBE_TEMP
 function ensure-gci-metadata-files {
   if [[ ! -f "${KUBE_TEMP}/gci-update.txt" ]]; then
-    cat >"${KUBE_TEMP}/gci-update.txt" << EOF
-update_disabled
-EOF
+    echo -n "update_disabled" > "${KUBE_TEMP}/gci-update.txt"
   fi
   if [[ ! -f "${KUBE_TEMP}/gci-ensure-gke-docker.txt" ]]; then
-    cat >"${KUBE_TEMP}/gci-ensure-gke-docker.txt" << EOF
-true
-EOF
+    echo -n "true" > "${KUBE_TEMP}/gci-ensure-gke-docker.txt"
   fi
   if [[ ! -f "${KUBE_TEMP}/gci-docker-version.txt" ]]; then
-    cat >"${KUBE_TEMP}/gci-docker-version.txt" << EOF
-${GCI_DOCKER_VERSION:-}
-EOF
+    echo -n "${GCI_DOCKER_VERSION:-}" > "${KUBE_TEMP}/gci-docker-version.txt"
   fi
 }