Initial commit of Cloud IoT samples

Author: gguuss

iot/README.md

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+<img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>
+
+# Google Cloud IoT Core NodeJS Samples
+
+This folder contains NodeJS samples that demonstrate an overview of the Google
+Cloud IoT Core platform.
+
+## Quickstart
+
+1.  Install the Google Cloud SDK as described in [the device manager guide](/iot/docs/device_manager_guide#install_the_gcloud_cli).
+1.  Create a Cloud Pub/Sub topic:
+
+    gcloud beta pubsub topics create projects/my-iot-project/topics/device-events
+
+1.  Add the service account `[email protected]` to that
+    Cloud Pub/Sub topic from the [Cloud Developer Console](https://console.cloud.google.com)
+    or by setting the `GOOGLE_CLOUD_PROJECT` environment variable and using the
+    helper script in the `scripts/` folder.
+
+1.  Create a registry:
+
+        gcloud alpha iot registries create my-registry \
+            --project=my-iot-project \
+            --region=us-central1 \
+            --pubsub-topic=projects/my-iot-project/topics/device-events
+
+1.  Use the `generate_keys.sh` script to generate your signing keys:
+
+        ./scripts/generate_keys.sh
+
+1.  Create a device.
+
+        gcloud alpha iot devices create my-node-device \
+            --project=my-iot-project \
+            --region=us-central1 \
+            --registry=my-registry \
+            --public-key path=rsa_cert.pem,type=rs256
+
+1.  Connect a sample device using the sample app in the `mqtt_example` folder.
+1.  Learn how to manage devices programatically with the sample app in the
+    `manager` folder.

iot/manager/README.md

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+<img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>
+
+# Google Cloud IoT Core NodeJS Device Management example
+
+This sample app demonstrates device management for Google Cloud IoT Core.
+
+Note that before you run this sample, you must configure a Google Cloud PubSub
+topic for Cloud IoT as described in the parent README.
+
+# Setup
+
+Run the following command to install the library dependencies for NodeJS:
+
+    npm install
+
+# Running the sample
+
+The following command summarizes the sample usage:
+
+      Usage: cloudiot_device_manager_example [options]
+
+      Example Google Cloud IoT device manager integration
+
+      Options:
+
+        -h, --help                                     output usage information
+        --project_id <project_id>                      GCP cloud project name.
+        --pubsub_topic <pubsub_topic>                  Cloud Pub/Sub topic to use.
+        --api_key <api_key>                            Your API key.
+        --ec_public_key_file <ec_public_key_file>      Path to EC public key.
+        --rsa_certificate_file <rsa_certificate_file>  Path to RSA certificate file.
+        --cloud_region <cloud_region>                  GCP cloud region.
+        --service_account_json <service_account_json>  Path to service account JSON file.
+        --registry_id <registry_id>                    Custom registry id. If not provided, a unique registry id will be generated.
+
+For example, if your project ID is `blue-jet-123`, your service account
+credentials are stored in your home folder in creds.json and you have generated
+your credentials using the shell script provided in the parent folder, you can
+run the sample as:
+
+    node cloudiot_device_manager_example.js \
+        --service_account_json=$HOME/creds.json \
+        --api_key=YOUR_CLIENT_ID \
+        --project_id=blue-jet-123 \
+        --pubsub_topic=projects/blue-jet-123/topics/device-events \
+        --ec_public_key_file=../ec_public.pem \
+        --rsa_certificate_file=../rsa_cert.pem