Merge pull request #43700 from jszczepkowski/ha-upgrade

Automatic merge from submit-queue Added failing upgrade if there is more than one master replicas. Added failing upgrade (on GCE) if there is more than one master replicas. Related to #43688. ```release-note None ```

Merge pull request #43700 from jszczepkowski/ha-upgrade
e02e75cc · Kubernetes Submit Queue · GitHub · 9a164868 · 27b8e1f5 · e02e75cc
Commit e02e75cc authored Mar 27, 2017 by Kubernetes Submit Queue Committed by GitHub Mar 27, 2017
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upgrade.sh cluster/gce/upgrade.sh +7 -0

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--- a/cluster/gce/upgrade.sh
+++ b/cluster/gce/upgrade.sh
@@ -74,6 +74,13 @@ function print-node-version-info() {
 }

 function upgrade-master() {
+  local num_masters
+  num_masters=$(get-master-replicas-count)
+  if [[ "${num_masters}" -gt 1 ]]; then
+    echo "Upgrade of master not supported if more than one master replica present. The current number of master replicas: ${num_masters}"
+    exit 1
+  fi
+
  echo "== Upgrading master to '${SERVER_BINARY_TAR_URL}'. Do not interrupt, deleting master instance. =="

  # Tries to figure out KUBE_USER/KUBE_PASSWORD by first looking under