Chapter 8. Integrating a Camel Application with the A-MQ Broker

Procedure

1. Get ready to build and deploy the quickstart:

   1. Log in to OpenShift as a developer.

      oc login -u developer -p developer

   2. Create a new project amq-quickstart.

      oc new-project amq-quickstart

   3. Determine the version of the A-MQ 6 images and templates installed.

      $ oc get template -n openshift

      You should be able to find a template named amqXX-basic, where XX is the version of A-MQ installed in Openshift.

2. Deploy the A-MQ 6 image in the amq-quickstart namespace (replace XX with the actual version of A-MQ found in previous step).

   $ oc process openshift//amqXX-basic -p APPLICATION_NAME=broker -p MQ_USERNAME=admin -p MQ_PASSWORD=admin -p MQ_QUEUES=test -p MQ_PROTOCOL=amqp -n amq-quickstart | oc create -f -

   Note

   This oc command could fail, if you use an older version of oc. This syntax works with oc versions 3.5.x (based on Kubernetes 1.5.x).

3. Add a user role that is needed for discovery of mesh endpoints (through Kubernetes REST API agent).

   $ oc policy add-role-to-user view system:serviceaccount:amq-quickstart:default

4. Create the quickstart project using the Maven workflow.

   $ mvn org.apache.maven.plugins:maven-archetype-plugin:2.4:generate \
   -DarchetypeCatalog=https://maven.repository.redhat.com/ga/io/fabric8/archetypes/archetypes-catalog/2.2.0.fuse-740017-redhat-00003/archetypes-catalog-2.2.0.fuse-740017-redhat-00003-archetype-catalog.xml \
   -DarchetypeGroupId=org.jboss.fuse.fis.archetypes \
   -DarchetypeArtifactId=spring-boot-camel-amq-archetype \
   -DarchetypeVersion=2.2.0.fuse-740017-redhat-00003

5. The archetype plug-in switches to interactive mode to prompt you for the remaining fields.

   Define value for property 'groupId': : org.example.fis
   Define value for property 'artifactId': : fuse74-spring-boot-camel-amq
   Define value for property 'version':  1.0-SNAPSHOT: :
   Define value for property 'package':  org.example.fis: :
   [INFO] Using property: spring-boot-version = 1.5.17.RELEASE
   Confirm properties configuration:
   groupId: org.example.fis
   artifactId: fuse74-spring-boot-camel-amq
   version: 1.0-SNAPSHOT
   package: org.example.fis
   spring-boot-version: 1.5.17.RELEASE
    Y: :

   When prompted, enter org.example.fis for the groupId value and fuse74-spring-boot-camel-amq for the artifactId value. Accept the defaults for the remaining fields.

6. Navigate to the quickstart directory fuse74-spring-boot-camel-amq.

   $ cd fuse74-spring-boot-camel-amq

7. Customize the client credentials for logging on to the broker, by setting the ACTIVEMQ_BROKER_USERNAME and ACTIVEMQ_BROKER_PASSWORD environment variables. In the fuse74-spring-boot-camel-amq project, edit the src/main/fabric8/deployment.yml file, as follows:

   spec:
     template:
       spec:
         containers:
           -
             resources:
               requests:
                 cpu: "0.2"
   #              memory: 256Mi
               limits:
                 cpu: "1.0"
   #              memory: 256Mi
             env:
             - name: AMQP_HOST
               value: broker-amq-amqp
             - name: SPRING_APPLICATION_JSON
               value: '{"server":{"undertow":{"io-threads":1, "worker-threads":2 }}}'
             - name: AMQP_USERNAME
               value: admin
             - name: AMQP_PASSWORD
               value: admin

8. Run the mvn command to deploy the quickstart to OpenShift server.

   mvn fabric8:deploy -Popenshift

9. To verify that the quickstart is running successfully:

   1. Navigate to the OpenShift console.
   2. Select the project amq-quickstart.
   3. Click Applications.
   4. Select Pods.
   5. Click fis-spring-boot-camel-am-1-xxxxx.

   6. Click Logs.

      The output shows the messages are sent successfully.

      10:17:59.825 [Camel (camel) thread #10 - timer://order] INFO  generate-order-route - Generating order order1379.xml
      10:17:59.829 [Camel (camel) thread #8 - JmsConsumer[incomingOrders]] INFO  jms-cbr-route - Sending order order1379.xml to the UK
      10:17:59.829 [Camel (camel) thread #8 - JmsConsumer[incomingOrders]] INFO  jms-cbr-route - Done processing order1379.xml
      10:18:02.825 [Camel (camel) thread #10 - timer://order] INFO  generate-order-route - Generating order order1380.xml
      10:18:02.829 [Camel (camel) thread #7 - JmsConsumer[incomingOrders]] INFO  jms-cbr-route - Sending order order1380.xml to another country
      10:18:02.829 [Camel (camel) thread #7 - JmsConsumer[incomingOrders]] INFO jms-cbr-route - Done processing order1380.xml

10. To view the routes on the web interface, click Open Java Console and check the messages in the A-MQ queue.