Merge pull request kubernetes#121875 from mborsz/gcloud

Use value(name) in gcloud compute instance-groups managed list-instances

Author: k8s-ci-robot

cluster/gce/upgrade.sh

@@ -406,7 +406,7 @@ function do-node-upgrade() {
     fi
     instances=()
     while IFS='' read -r line; do instances+=("$line"); done < <(gcloud compute instance-groups managed list-instances "${group}" \
-        --format='value(instance)' \
+        --format='value(name)' \
         --project="${PROJECT}" \
         --zone="${ZONE}" 2>&1) && list_instances_rc=$? || list_instances_rc=$?
     if [[ "${list_instances_rc}" != 0 ]]; then

cluster/gce/util.sh

@@ -412,7 +412,7 @@ function detect-node-names() {
     for group in "${INSTANCE_GROUPS[@]}"; do
       kube::util::read-array NODE_NAMES < <(gcloud compute instance-groups managed list-instances \
         "${group}" --zone "${ZONE}" --project "${PROJECT}" \
-        --format='value(instance)')
+        --format='value(name)')
     done
   fi
   # Add heapster node name to the list too (if it exists).
@@ -425,7 +425,7 @@ function detect-node-names() {
     for group in "${WINDOWS_INSTANCE_GROUPS[@]}"; do
       kube::util::read-array WINDOWS_NODE_NAMES < <(gcloud compute instance-groups managed \
         list-instances "${group}" --zone "${ZONE}" --project "${PROJECT}" \
-        --format='value(instance)')
+        --format='value(name)')
     done
   fi
   export WINDOWS_NODE_NAMES