build(kokoro): setup samples and system test

.kokoro/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/continuous/node10/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/continuous/node6/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/continuous/node8/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/continuous/node8/samples-test.cfg

@@ -0,0 +1,7 @@
+# Download resources for system tests (service account key, etc.)
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/nodejs-vision/.kokoro/samples-test.sh"
+}

.kokoro/continuous/node8/system-test.cfg

@@ -0,0 +1,7 @@
+# Download resources for system tests (service account key, etc.)
+gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
+
+env_vars: {
+    key: "TRAMPOLINE_BUILD_FILE"
+    value: "github/nodejs-vision/.kokoro/system-test.sh"
+}

.kokoro/presubmit/node10/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/presubmit/node6/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/presubmit/node8/common.cfg

@@ -10,9 +10,6 @@ action {
 # Download trampoline resources.
 gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/trampoline"
 
-# Download resources for system tests (service account key, etc.)
-gfile_resources: "/bigstore/cloud-devrel-kokoro-resources/google-cloud-nodejs"
-
 # Use the trampoline script to run in docker.
 build_file: "nodejs-vision/.kokoro/trampoline.sh"
 

.kokoro/samples-test.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# Copyright 2018 Google LLC
+#
+# 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
+#
+#     https://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 -xeo pipefail
+
+# Setup service account credentials.
+export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/service-account.json
+
+cd github/nodejs-vision
+
+npm install
+
+# Install and link samples
+cd samples/
+npm link ../
+npm install
+cd ..
+
+npm run samples-test

.kokoro/system-test.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright 2018 Google LLC
+#
+# 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
+#
+#     https://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 -xeo pipefail
+
+# Setup service account credentials.
+export GOOGLE_APPLICATION_CREDENTIALS=${KOKORO_GFILE_DIR}/service-account.json
+
+cd github/nodejs-vision
+
+npm install
+
+npm run system-test