Add a simple script for running go e2e tests against existing clusters.

Also add an even simpler script for testing the network setup.

cluster/test-network.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Copyright 2014 Google Inc. All rights reserved.
+#
+# 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
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+source "${KUBE_ROOT}/cluster/kube-env.sh"
+source "${KUBE_ROOT}/cluster/${KUBERNETES_PROVIDER}/util.sh"
+
+${KUBE_ROOT}/hack/e2e-suite/goe2e.sh -tTestNetwork

hack/e2e-suite/goe2e.sh

@@ -85,4 +85,5 @@ fi
 "${e2e}" "${auth_config[@]:+${auth_config[@]}}" \
   --host="https://${KUBE_MASTER_IP-}" \
   --provider="${KUBERNETES_PROVIDER}" \
-  ${E2E_REPORT_DIR+"--report_dir=${E2E_REPORT_DIR}"}
+  ${E2E_REPORT_DIR+"--report_dir=${E2E_REPORT_DIR}"} \
+  "${@}"