Corona Virus Demo

Folder Structure

--Setup
-- src
	|--VirusDispatcher	(Dispatch lab result to handlers through Channel)
	|--channel (Knative Channel to receive events)
		|--Alpha
		|--Mers
		|--Unknown
		|--Noval (COVID-19)
	|--handlers (Handlers that send notice to Dashboard by channel events)
		|--Alpha
		|--Mers
		|--Unknown
		|--Noval (COVID-19)
	|--Simulator
		|--SimulatorSend (Send fake lab data)
		|--Dashboard (Send notification to Dashboard)
		|--SimulatorCloudEvent (RC 1- Problem with two Camel K 
		operators)
-- ui

Setup Base Environment

Install Operators

OpenShift Serverless Operator
Knative Eventing Operator
AMQ Streams
Camel K

Create Project to setup AMQ Streams(Kafka)

oc new-project streams

Create the Kafka Cluster cluster under streams project

apiVersion: kafka.strimzi.io/v1beta1
kind: Kafka
metadata:
  name: my-cluster
  namespace: streams
spec:
  kafka:
    version: 2.3.0
    replicas: 3
    listeners:
      plain: {}
      tls: {}
    config:
      offsets.topic.replication.factor: 3
      transaction.state.log.replication.factor: 3
      transaction.state.log.min.isr: 2
      log.message.format.version: '2.3'
    storage:
      type: ephemeral
  zookeeper:
    replicas: 3
    storage:
      type: ephemeral
  entityOperator:
    topicOperator: {}
    userOperator: {}

And also create the Kafka Topic

apiVersion: kafka.strimzi.io/v1beta1
kind: KafkaTopic
metadata:
  name: my-topic
  labels:
    strimzi.io/cluster: my-cluster
  namespace: streams
spec:
  partitions: 10
  replicas: 3
  config:
    retention.ms: 604800000
    segment.bytes: 1073741824

And also create the Knative Serving if not existed.

apiVersion: v1
kind: Namespace
metadata:
 name: knative-serving

apiVersion: serving.knative.dev/v1alpha1
kind: KnativeServing
metadata:
 name: knative-serving
 namespace: knative-serving

Create namespece for the demo

oc new-project outbreak

Create Camel K Integration Platform

apiVersion: camel.apache.org/v1
kind: IntegrationPlatform
metadata:
  name: example
  namespace: outbreak
spec: {}

Install applications

Setup Dashboard

oc new-app quay.io/weimeilin79/myui:latest
oc expose service myui

Get your Dashboad location

oc get route

Setup application

Existing virus outbreak handler

Setup Channel, under src/channel

oc create -f channelalpha.yaml		
oc create -f channelmers.yaml
oc create -f channelunknown.yaml
oc create -f channelnoval.yaml

Install the existing virus outbreak handler, under src/handlers

kamel run -d camel-jackson AlphaHandler.java
kamel run -d camel-jackson MersHandler.yaml
kamel run -d camel-jackson UnknownHandler.groovy

Start sending in lab result, under src/simulator

kamel run -d camel-jackson -d camel-bean SimulateSender.java 
kamel run Dashboard.java

Start dispatching virus result to handlers, under src/

kamel run -d camel-jackson VirusDispatcher.java --dev

Go to Dashboard to see the virus

Adding COVID-19 handler

Install the new COVID19 outbreak handler, under src/handlers

kamel run -d camel-jackson NovalHandler.java

Update your VirusDispatcher.java under src/ add the following condition (You should be using DEV mode)

	      .when().simple("${body.genuses} == 'Novalvirus'")
             .marshal(jacksonDataFormat)
             .log("MERS - ${body}")
             .to("knative:channel/noval-handler")

Go to Dashboard to see the new COVID 19 virus appears