Quote Demo

This application is based on a Quarkus sample available at https://quarkus.io/guides/amqp.

A small enhancement has been introduced to the backend service to simulate a variable response time resulting in out-of-order responses: QuoteProcessor.java

It was originally designed to use the AMQP protocol, but in this branch the configuration is changed to sit on top of Kafka: comparing it with the main branch you'll notice that thanks to Quarkus and Microprofile the required changes are minimal.

Start the application in dev mode

In a first terminal, run:

mvn -f quote-producer quarkus:dev

In a second terminal, run:

mvn -f quote-processor quarkus:dev -DdebugPort=5006

Then, open your browser to http://localhost:8080/, and click on the "Request Quote" button.

Optionally, you can launch the analytics µService:

mvn -f quote-analytics quarkus:dev -DdebugPort=5007

Start local kafka

If you prefer disable the devservices, you can launch a local Kafka with the following options:

docker compose up

or

podman kube play podman-play.yaml

Build the application in native mode

To build the applications into native executables, run:

mvn -f quote-producer package -Pnative  -Dquarkus.native.container-build=true
mvn -f quote-processor package -Pnative -Dquarkus.native.container-build=true

The -Dquarkus.native.container-build=true instructs Quarkus to build Linux 64bits native executables, who can run inside containers.

Openshift Deployment

Deploy the processor:

./mvnw -f quote-processor package -DskipTests -Dquarkus.kubernetes.deploy=true

Deploy the producer:

./mvnw -f quote-producer package -DskipTests -Dquarkus.kubernetes.deploy=true

Remove builder pods:

oc delete pods --field-selector=status.phase=Succeeded