docs(sample): added create cluster sample for cloud dataproc (#266)

* Added create cluster sample for Cloud Dataproc

* cleaned up dependencies

* Updated READMEs

* ignore createCluster until it lands

dataproc/createCluster.js

@@ -0,0 +1,63 @@
+// Copyright 2019 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.
+
+// Code for creating a Cloud Dataproc cluster with the Node.js Client Library
+
+function main(projectId, region, clusterName) {
+  // [START create_cluster]
+  const dataproc = require('@google-cloud/dataproc');
+
+  // Create a client with the endpoint set to the desired cluster region
+  const client = new dataproc.v1.ClusterControllerClient({
+    apiEndpoint: `${region}-dataproc.googleapis.com`,
+  });
+
+  async function createCluster() {
+    // TODO(developer): Uncomment and set the following variables
+    // project_id = 'YOUR_PROJECT_ID'
+    // region = 'YOUR_CLUSTER_REGION'
+    // cluster_name = 'YOUR_CLUSTER_NAME'
+
+    // Create your cluster config
+    const request = {
+      projectId: projectId,
+      region: region,
+      cluster: {
+        clusterName: clusterName,
+        config: {
+          masterConfig: {
+            numInstances: 1,
+            machineTypeUri: 'n1-standard-1',
+          },
+          workerConfig: {
+            numInstances: 2,
+            machineTypeUri: 'n1-standard-1',
+          },
+        },
+      },
+    };
+
+    // Create our cluster
+    const [operation] = await client.createCluster(request);
+    const [response] = await operation.promise();
+
+    // Output the response
+    console.log(response);
+    // [END create_cluster]
+  }
+
+  createCluster();
+}
+
+main(...process.argv.slice(2));

dataproc/package.json

@@ -11,13 +11,14 @@
   "repository": "googleapis/nodejs-dataproc",
   "private": true,
   "scripts": {
-    "test": "mocha system-test --timeout 60000"
+    "test": "mocha system-test --timeout 600000"
   },
   "dependencies": {
     "@google-cloud/dataproc": "^1.4.1"
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "mocha": "^6.0.0"
+    "mocha": "^6.0.0",
+    "uuid": "^3.3.3"
   }
 }

dataproc/system-test/createCluster.test.js

@@ -0,0 +1,48 @@
+// Copyright 2019 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.
+
+'use strict';
+
+const {assert} = require('chai');
+const cp = require('child_process');
+const uuid = require('uuid');
+
+const region = 'us-central1';
+const clusterName = `test-${uuid()}`;
+
+const dataproc = require('@google-cloud/dataproc');
+const client = new dataproc.v1.ClusterControllerClient({
+  apiEndpoint: `${region}-dataproc.googleapis.com`,
+});
+
+const projectId = process.env.GCLOUD_PROJECT;
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+describe('create a dataproc cluster', () => {
+  it('should create a dataproc cluster', async () => {
+    const stdout = execSync(
+      `node createCluster.js "${projectId}" "${region}" "${clusterName}"`
+    );
+    assert.match(stdout, /clusterUuid/);
+  });
+
+  after(async () => {
+    await client.deleteCluster({
+      projectId: projectId,
+      region: region,
+      clusterName: clusterName,
+    });
+  });
+});