Add an e2e test suite for multi-zone GKE clusters.

cluster/gke/config-common.sh

@@ -20,6 +20,7 @@
 
 ZONE="${ZONE:-us-central1-f}"
 NUM_NODES="${NUM_NODES:-3}"
+ADDITIONAL_ZONES="${ADDITIONAL_ZONES:-}"
 CLUSTER_API_VERSION="${CLUSTER_API_VERSION:-}"
 NETWORK="${NETWORK:-default}"
 NETWORK_RANGE="${NETWORK_RANGE:-10.240.0.0/16}"

cluster/gke/util.sh

@@ -112,6 +112,7 @@ function verify-prereqs() {
 #   ZONE
 #   CLUSTER_API_VERSION (optional)
 #   NUM_NODES
+#   ADDITIONAL_ZONES
 #   NODE_SCOPES
 #   MACHINE_TYPE
 function kube-up() {
@@ -149,6 +150,10 @@ function kube-up() {
     "--machine-type=${MACHINE_TYPE}"
   )
 
+  if [[ ! -z "${ADDITIONAL_ZONES:-}" ]]; then
+    create_args+=("--additional-zones=${ADDITIONAL_ZONES}")
+  fi
+
   # Bring up the cluster.
   "${GCLOUD}" ${CMD_GROUP:-} container clusters create "${CLUSTER_NAME}" "${create_args[@]}"
 }

hack/jenkins/job-configs/kubernetes-jenkins/kubernetes-e2e.yaml

@@ -219,6 +219,17 @@
                 export PROJECT="k8s-jkns-e2e-gke-ci-flaky"
                 export GINKGO_TEST_ARGS="--ginkgo.focus=\[Flaky\] \
                                          --ginkgo.skip=\[Feature:.+\]"
+        - 'gke-multizone':
+            description: 'Run all non-flaky, non-slow, non-disruptive, non-feature tests on GKE, in parallel, and in a multi-zone (Ubernetes-lite) cluster.'
+            timeout: 150
+            emails: '$DEFAULT_RECIPIENTS, cloud-kubernetes-alerts@google.com, arob@google.com, quinton@google.com'
+            job-env: |
+                export PROJECT="k8s-jkns-e2e-gke-multizone"
+                export GINKGO_TEST_ARGS="--ginkgo.skip=\[Slow\]|\[Serial\]|\[Disruptive\]|\[Flaky\]|\[Feature:.+\]"
+                export GINKGO_PARALLEL="y"
+                export NUM_NODES="1"
+                export ZONE="us-central1-f"
+                export ADDITIONAL_ZONES="us-central1-a,us-central1-b"
     jobs:
         - 'kubernetes-e2e-{suffix}'