IoT Simulator Operator

This is the Kubernetes operator repository for the IoT simulator.

See https://github.com/ctron/hono-simulator for more information.

Creating a simulator

First you need to create a simulator base, assuming that your cluster apps base domain is apps.your.cluster and the project you deployed EnMasse to the project enmasse-infra and the IoT simulator to the project iot-simulator:

kind: Simulator
apiVersion: iot.dentrassi.de/v1alpha1
metadata:
  name: hono1
spec:
  endpoint:
    adapters:
      http:
        url: https://iot-http-adapter-enmasse-infra.apps.your.cluster
      mqtt:
        host: iot-mqtt-adapter-enmasse-infra.apps.your.cluster
        port: 443
    messaging:
      caCertificate: <base64 encoded PKCS#1/PEM cert>
      host: messaging-<infraUUID>.enmasse-infra.svc
      port: 5671
      user: consumer
      password: foobar
    registry:
      url: https://device-registry.apps.your.cluster

Next you need a consumer, created for the IoT tenant iot-simulator.iot:

kind: SimulatorConsumer
apiVersion: iot.dentrassi.de/v1alpha1
metadata:
  name: consumer1
spec:
  replicas: 1
  simulator: hono1
  tenant: iot-simulator.iot
  type: telemetry

Then you can create a producer:

kind: SimulatorProducer
apiVersion: iot.dentrassi.de/v1alpha1
metadata:
  name: producer1
spec:
  numberOfDevices: 10
  protocol: http
  replicas: 1
  simulator: hono1
  tenant: iot-simulator.iot
  type: telemetry

OpenShift

When running in OpenShift, the operator will automatically set up ImageStreams, Builds and Routes.

Routes

You should be able to see statistics on the Web UI https://iot-simulator-console-iot-simulator.apps.your.cluster/, as soon as you created producers and consumers.

Builds

By default it will build the matching version from the original repository.

However you can use the Simulator custom resource, to let the operator tweak the build. You may use this to try you own variations of the simulator.

kind: Simulator
apiVersion: iot.dentrassi.de/v1alpha1
metadata:
  name: hono1
spec:
  simulator:
    builds:
      hono-simulator:
        git:
          # Full configuration
          uri: https://github.com/ctron/hono-simulator
          ref: develop
      iot-simulator-console:
        git:
          # Only change branch
          ref: develop

Building for OLM

docker build -t docker.io/ctron/iot-simulator-source:latest -f catalog.Dockerfile .

Load with oc apply -f:

apiVersion: operators.coreos.com/v1alpha1
kind: CatalogSource
metadata:
  name: iot-simulator-source
  namespace: default
spec:
  sourceType: grpc
  image: docker.io/ctron/iot-simulator-source:latest

Also see:

• https://github.com/operator-framework/operator-registry#building-a-catalog-of-operators-using-operator-registry