First Responder Demo

The First Responder Demo application is meant to act as a test application for gauging the impact of OpenTelemetry tracing on a typical WildFly/EAP workload. The application is still in early stages, so more details on the performance tests -- the results, how to run them locally, etc -- will be added soon.

Setting up WildFly

To download and install WildFly, copy and paste the following into your shell:

wget https://repo1.maven.org/maven2/org/postgresql/postgresql/42.2.5/postgresql-42.2.5.jar
wget https://github.com/wildfly/wildfly/releases/download/26.1.1.Final/wildfly-26.1.1.Final.zip
unzip -q wildfly-26.1.1.Final.zip
wildfly-26.1.1.Final/bin/standalone.sh
wildfly-26.1.1.Final/bin/jboss-cli.sh -c << EOF
batch
/extension=org.wildfly.extension.microprofile.reactive-messaging-smallrye:add
/extension=org.wildfly.extension.microprofile.reactive-streams-operators-smallrye:add
/subsystem=microprofile-reactive-streams-operators-smallrye:add
/subsystem=microprofile-reactive-messaging-smallrye:add
module add --name=org.postgres --resources=postgresql-42.2.5.jar --dependencies=javax.api,javax.transaction.api
/subsystem=datasources/jdbc-driver=postgres:add(driver-name="postgres",driver-module-name="org.postgres",driver-class-name=org.postgresql.Driver)
data-source add --jndi-name=java:/FRDemoDS --name=FRDemoDS --connection-url=jdbc:postgresql://localhost/frdemo --driver-name=postgres --user-name=frdemo --password=frdemo
run-batch
reload
EOF

Starting Kafka

To download and install Kafka, perform the steps below. For more information on Kafka, see the Apache Kafka Quickstart.

$ wget https://dlcdn.apache.org/kafka/3.2.1/kafka_2.13-3.2.1.tgz
$ tar xf kafka_2.13-3.2.1.tgz
$ cd kafka_2.13-3.2.1.tgz
(In separate terminal windows/tabs)
$ bin/zookeeper-server-start.sh config/zookeeper.properties
$ bin/kafka-server-start.sh config/server.properties
(This next is optional)
$ bin/kafka-console-consumer.sh --topic IncidentReportedEvent --from-beginning --bootstrap-server localhost:9092

Deploying the application

$ mvn clean install wildfly:deploy

Arquillian tests

The First Responder Demo has a number of basic integration tests using Arquillian. The tests and coverage are not exhaustive, but are meant to be a quick check of the application's basic functionality. To make running these tests as simple as possible, PostgreSQL and Kafka are managed in Docker containers via the testcontainers project, so a working Docker/Podman environment will be required.

To run the tests, execute this command:

mvn clean compile verify -Parq-managed