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Fix empty array expansion error in cluster/gce/util.sh

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Empty array expansion causes "unbound variable" error in
bash 4.2 and bash 4.3.
This commit is contained in:
Ke Wu 2019-04-03 17:22:03 -07:00
parent 1c105e1629
commit 925dc7f2e0
1 changed files with 1 additions and 1 deletions
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2
cluster/gce/util.sh
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@ -3029,7 +3029,7 @@ function kube-down() {
# change during a cluster upgrade.)
local templates=$(get-template "${PROJECT}")
local all_instance_groups=(${INSTANCE_GROUPS[@]} ${WINDOWS_INSTANCE_GROUPS[@]})
local all_instance_groups=(${INSTANCE_GROUPS[@]:-} ${WINDOWS_INSTANCE_GROUPS[@]:-})
for group in ${all_instance_groups[@]:-}; do
if gcloud compute instance-groups managed describe "${group}" --project "${PROJECT}" --zone "${ZONE}" &>/dev/null; then
gcloud compute instance-groups managed delete \