Add an e2e test for cert generation.

hack/e2e-suite/certs.sh

@@ -0,0 +1,34 @@
+#!/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.
+
+# Launches a container and verifies it can be reached. Assumes that
+# we're being called by hack/e2e-test.sh (we use some env vars it sets up).
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+if [[ "$KUBERNETES_PROVIDER" != "gce" ]]; then
+  echo "Skipping certs test on non-gce provider."
+  exit 0
+fi
+
+# IMPORTANT: there are upstream things that rely on these files.
+# Do *not* fix this test by changing this path, unless you _really_ know
+# what you are doing.
+for file in kubecfg.key kubecfg.crt ca.crt; do
+  gcloud compute ssh --zone="${ZONE}" "${MASTER_NAME}" --command "ls /srv/kubernetes/${file}"
+done