From 9feafda475fe979f40b2e28213ce7c46d7453fc4 Mon Sep 17 00:00:00 2001
From: Erick Fejta <fejta@google.com>
Date: Wed, 19 Oct 2016 18:37:46 -0700
Subject: [PATCH] Only delete GKE clusters that exist

---
 cluster/gke/util.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cluster/gke/util.sh b/cluster/gke/util.sh
index fb6bec52dfa..b0c83854bf8 100755
--- a/cluster/gke/util.sh
+++ b/cluster/gke/util.sh
@@ -401,6 +401,8 @@ function test-teardown() {
 function kube-down() {
   echo "... in gke:kube-down()" >&2
   detect-project >&2
-  "${GCLOUD}" ${CMD_GROUP:-} container clusters delete --project="${PROJECT}" \
-    --zone="${ZONE}" "${CLUSTER_NAME}" --quiet
+  if "${GCLOUD}" ${CMD_GROUP:-} container clusters describe --project="${PROJECT}" --zone="${ZONE}" "${CLUSER_NAME}" --quiet &>/dev/null; then
+    "${GCLOUD}" ${CMD_GROUP:-} container clusters delete --project="${PROJECT}" \
+      --zone="${ZONE}" "${CLUSTER_NAME}" --quiet
+  fi
 }