Rollouts service integration with hawkBit device simulator running on Cloud Foundry

Introduction

This guide explains how to push a device simulator application to a Cloud Foundry instance that has Bosch IoT Rollouts in its catalog.

The hawkBit device simulator simulates the creation of targets and execution of updates in your Bosch IoT Rollouts instance.

It leverages the following capabilities:

Service binding of Cloud Foundry.
Usage of Rollouts Device Management Federation API.

Applicable to Rollouts customers of

Rollouts EU1 - IBM Cloud catalog
Rollouts EU2 - Bosch IoT Cloud catalog

Prerequisites

A booked Bosch IoT Rollouts service instance on Bosch IoT Cloud
You have the Cloud Foundry CLI installed.
JDK and Maven installed.

Steps

Download and build the device simulator

First of all the open source project hawkBit has to be download as zip or cloned as Git repository.

git clone https://github.com/eclipse/hawkbit-examples.git

Next build the project with maven.

mvn clean install

Now you can find the device simulator application as jar file in hawkbit-device-simulator/target/hawkbit-device-simulator-#version#.jar

The device simulator supports the DDI and DMF device integration APIs.

Push the device simulator to Cloud Foundry

To push the device simulator to Cloud Foundry either create an application manifests or run a command with all settings. You will have to define a name and a services binding to your instance of Bosch IoT Rollouts.

As mentioned, the device simulator supports both device integration APIs (DDI and DMF). The DMF API is available in Free plan for evaluation purposes and in the Standard plan for productive use. Note that the API has to be activated (either by Management API or Management UI).

Alt text

In case of DDI only we recommend to disable the AMQP interface of the device simulator either via property hawkbit.device.simulator.amqp.enabled=false or environment variable HAWKBIT_DEVICE_SIMULATOR_AMQP_ENABLED=false otherwise the simulator tries to connect to DMF automatically.

Option 1.a: Create an application manifest (DMF enabled)

Create a file named manifest.yml with the following settings (example with DMF integration) and add it to the examples/hawkbit-device-simulator folder.

---
applications:
- name: device-simulator
  memory: 512M
  buildpack: https://github.com/cloudfoundry/java-buildpack
  instances: 1
  path: target\hawkbit-device-simulator-#version#.jar
  services:
    - myrolloutservice
  env:
    DMF_SERVICE: myrolloutservice
    HAWKBIT_DEVICE_SIMULATOR_AMQP_ENABLED: true
    HAWKBIT_DEVICE_SIMULATOR_AMQP_RECEIVERCONNECTORQUEUEFROMSP: sp_direct_queue
    HAWKBIT_DEVICE_SIMULATOR_AMQP_SENDERFORSPEXCHANGE: sp.direct.exchange

Go to the /examples/hawkbit-device-simulator directory and push the app.

cf push

Option 1.b: Create an application manifest (DMF disabled, DDI only)

Create a file named manifest.yml with the following settings (example without DMF integration) and add it to the examples/hawkbit-device-simulator folder.

---
applications:
- name: device-simulator
  memory: 512M
  buildpack: https://github.com/cloudfoundry/java-buildpack
  instances: 1
  path: target\hawkbit-device-simulator-#version#.jar
  services:
    - myrolloutservice
  env:
    HAWKBIT_DEVICE_SIMULATOR_AMQP_ENABLED: false

Go to the /examples/hawkbit-device-simulator directory and push the app.

cf push

Option 2: Run a command with settings and bind the device-simulator to DMF RabbitMQ

cf push device-simulator --no-start -m 512M -b https://github.com/cloudfoundry/java-buildpack -i 1 -p target\hawkbit-device-simulator-#version#.jar

Set environment variable.

cf set-env device-simulator DMF_SERVICE myrolloutservice
cf set-env device-simulator HAWKBIT_DEVICE_SIMULATOR_AMQP_ENABLED true
cf set-env device-simulator HAWKBIT_DEVICE_SIMULATOR_AMQP_RECEIVERCONNECTORQUEUEFROMSP sp_direct_queue
cf set-env device-simulator HAWKBIT_DEVICE_SIMULATOR_AMQP_SENDERFORSPEXCHANGE sp.direct.exchange

Bind the device simulator to your Bosch IoT Rollouts service.

cf bind-service device-simulator myrolloutservice

Start the device-simulator application.

cf start device-simulator

Test the device simulator application

After successfully pushing the device-simulator you can generate simulated devices. Don’t forget to enter your tenant.

curl http://YOUR_SIMULATOR_HOST/start?tenant=YOUR_TENANT

Hint: see device simulator homepage for further details and options.

Note: in case you want to simulate devices connected through DDI you have to provide Rollouts DDI endpoint URL and a GatewayToken for device authentication to the simulator.

The generated devices will now appear in the Bosch IoT Rollouts service interface.