Add a script for running e2e tests for kubetest2 gke deployer

kubetest2-gke/ci-tests/buildupdown.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+# Copyright 2021 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+set -o xtrace
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+cd "${REPO_ROOT}" &> /dev/null || exit 1
+
+make install
+make install-deployer-gke
+make install-tester-exec
+
+function main() {
+  CLUSTER_TOPOLOGY="singlecluster"
+
+  while [ $# -gt 0 ]; do
+    case "$1" in
+      --cluster-topology)
+        shift
+        CLUSTER_TOPOLOGY="$1"
+        ;;
+      *)
+        echo "Invalid argument"
+        exit 1
+        ;;
+      esac
+    shift
+  done
+
+  NUM_CLUSTERS=0
+  case "${CLUSTER_TOPOLOGY}" in
+    "singlecluster")
+      NUM_CLUSTERS=1
+      ;;
+    "multicluster")
+      NUM_CLUSTERS=2
+      ;;
+    *)
+      echo "Invalid cluster topology ${CLUSTER_TOPOLOGY}"
+      exit 1
+      ;;
+  esac
+
+  kubetest2 gke \
+    -v 2 \
+    --num-clusters "${NUM_CLUSTERS}" \
+    --num-nodes 1 \
+    --zone us-central1-c,us-west1-a,us-east1-b \
+    --network ci-tests-network \
+    --up \
+    --down \
+    --test=exec -- "${REPO_ROOT}/kubetest2-gke/ci-tests/test.sh"
+}
+
+main "$@"

kubetest2-gke/ci-tests/test.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Copyright 2021 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+echo "Dumping relevant info for the master and cluster services"
+kubectl cluster-info dump

kubetest2-gke/deployer/up.go

@@ -81,20 +81,22 @@ func (d *Deployer) CreateClusters() error {
 	totalTryCount := math.Max(len(d.Regions), len(d.Zones))
 	for retryCount := 0; retryCount < totalTryCount; retryCount++ {
 		d.retryCount = retryCount
-		if err := d.tryCreateClusters(retryCount); err != nil {
+		shouldRetry, err := d.tryCreateClusters(retryCount)
+		if !shouldRetry {
 			return err
 		}
 	}
 
 	return nil
 }
 
-func (d *Deployer) tryCreateClusters(retryCount int) error {
-	if err := d.CreateSubnets(); err != nil {
-		return err
+func (d *Deployer) tryCreateClusters(retryCount int) (shouldRetry bool, err error) {
+	shouldRetry = false
+	if err = d.CreateSubnets(); err != nil {
+		return
 	}
-	if err := d.SetupNetwork(); err != nil {
-		return err
+	if err = d.SetupNetwork(); err != nil {
+		return
 	}
 
 	eg := new(errgroup.Group)
@@ -113,23 +115,24 @@ func (d *Deployer) tryCreateClusters(retryCount int) error {
 		}
 	}
 
-	if err := eg.Wait(); err != nil {
+	if err = eg.Wait(); err != nil {
 		// If the error is retryable and it is not the last region/zone that
 		// can be retried, perform cleanups in the background and retry
 		// cluster creation in the next available region/zone.
 		if d.isRetryableError(err) && retryCount != d.totalTryCount-1 {
+			shouldRetry = true
 			go func() {
 				d.DeleteClusters(retryCount)
 				if err := d.DeleteSubnets(retryCount); err != nil {
 					log.Printf("Warning: error encountered deleting subnets: %v", err)
 				}
 			}()
 		} else {
-			return fmt.Errorf("error creating clusters: %v", err)
+			err = fmt.Errorf("error creating clusters: %v", err)
 		}
 	}
 
-	return nil
+	return
 }
 
 // isRetryableError checks if the error happens during cluster creation can be potentially solved by retrying or not.