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README.adoc

Spring-Boot Camel QuickStart

This example demonstrates how you can use Apache Camel with Spring Boot based on a 'fabric8 Java base image'.

The quickstart uses Spring Boot to configure a little application that includes a Camel route that triggers a message every 5th second, and routes the message to a log.

The application utilizes the Spring @ImportResource annotation to load a Camel Context definition via a src/main/resources/spring/camel-context.xml file on the classpath.

Important
This quickstart can run in 2 modes: standalone on your machine and on Kubernetes / OpenShift Cluster

Deployment options

You can run this quickstart in the following modes:

  • Kubernetese / Single-node OpenShift cluster

  • Standalone on your machine

The most effective way to run this quickstart is to deploy and run the project on OpenShift.

For more details about running this quickstart on a single-node OpenShift cluster, CI/CD deployments, as well as the rest of the runtime, see the Spring Boot Runtime Guide.

Running the Quickstart on a single-node Kubernetes/OpenShift cluster

A single-node Kubernetes/OpenShift cluster provides you with access to a cloud environment that is similar to a production environment.

If you have a single-node Kubernetes/OpenShift cluster, such as Minishift or the Red Hat Container Development Kit, installed and running, you can deploy your quickstart there.

To deploy this quickstart to a running single-node OpenShift cluster:

  1. Download the project and extract the archive on your local filesystem.

  2. Log in to your OpenShift cluster:

    $ oc login -u developer -p developer
  3. Create a new OpenShift project for the quickstart:

    $ oc new-project MY_PROJECT_NAME
  4. Change the directory to the folder that contains the extracted quickstart application (for example, my_openshift/spring-boot-camel) :

    $ cd my_openshift/spring-boot-camel
  5. Build and deploy the project to the OpenShift cluster:

    $ mvn clean -DskipTests fabric8:deploy -Popenshift
  6. In your browser, navigate to the MY_PROJECT_NAME project in the OpenShift console. Wait until you can see that the pod for the spring-boot-camel has started up.

  7. On the project’s Overview page, navigate to the details page deployment of the spring-boot-camel application: https://OPENSHIFT_IP_ADDR:8443/console/project/MY_PROJECT_NAME/browse/rc/spring-boot-camel-NUMBER_OF_DEPLOYMENT?tab=details.

  8. Switch to tab Logs and then see the messages sent by Camel.

Running the quickstart standalone on your machine

To run this quickstart as a standalone project on your local machine:

  1. Download the project and extract the archive on your local filesystem.

  2. Build the project:

    $ cd PROJECT_DIR
    $ mvn clean package
  3. Run the service:

    $ mvn spring-boot:run
  4. See the messages sent by Camel.

Integration Testing

The example includes a fabric8 arquillian Kubernetes Integration Test. Once the container image has been built and deployed in Kubernetes, the integration test can be run with:

mvn test -Dtest=*KT

The test is disabled by default and has to be enabled using -Dtest. Integration Testing and Fabric8 Arquillian Extension provide more information on writing full fledged black box integration tests for Kubernetes.

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a quickstart showing how to use spring boot and camel together with Kubernetes or OpenShift

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