From a221e68c0c50aa069dc523c8bbd80fa836e4ece5 Mon Sep 17 00:00:00 2001
From: Erick Fejta <fejta@google.com>
Date: Thu, 20 Oct 2016 12:08:32 -0700
Subject: [PATCH] Detect whether a cluster exists before deleting it

---
 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..cda6b73c37d 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="${ZONE}" "${CLUSTER_NAME}" --quiet &>/dev/null; then
+    "${GCLOUD}" ${CMD_GROUP:-} container clusters delete --project="${PROJECT}" \
+      --zone="${ZONE}" "${CLUSTER_NAME}" --quiet
+  fi
 }