How to create a Camel integration and deploy it as a serverless service

Learning path | 5 resources | 1 hr and 45 mins | Published on August 25, 2023

This activity, created by Kah Hoe Lai, walks through how to create an Apache Camel integration and deploy it as a serverless service using the VS Code extension Karavan.

  1. Overview: How to create a Camel integration and deploy it as a serverless service
  2. Launch a new workspace and execute a command inside your pod Page | 15 mins
  3. Install the Karavan extension, then scaffold a new Camel project Page | 30 mins
  4. Create the Camel integration route and the REST API service Page | 30 mins
  5. Run and test inside OpenShift Dev Spaces and deploy it to OpenShift Page | 30 mins

Page

Create the Camel integration route and the REST API service

API Management Integration Kubernetes Quarkus Serverless integration Serverless
Kah Hoe Lai
Camel integration feature image

In the last lesson, you successfully defined your Camel project. Now let's create the Camel route.

What you need 

  • A workspace in Red Hat OpenShift Dev Spaces
  • A no-cost Developer Sandbox for Red Hat OpenShift environment

What you will learn

  • How to create an integration routeccess the Developer Sandbox
  • How to create a REST API service

Create the Camel integration route

  1. From the Projects menu icon, select Karavan: Create Integration from the context menu (Figure 16).
    The context menu for Karavan: Create Integration.
    Figure 16: The context menu for Karavan: Create Integration.
  2. Enter hello-world as the integration name (Figure 17).
    The integration name.
    Figure 17: The integration name.
  3. A new file with the name hello-world-camel.yaml has now been created. Inside the hello-world camel project, select the Routes tab, then Create route (Figure 18).
    The Create route button.
    Figure 18: The Create route button.
  4. Under the Components tab, search for the word direct (Figure 19).
    The Direct components under the Components Tab.
    Figure 19: The Direct components under the Components Tab.
  5. Click on the Direct icon. Enter my-internal-route to the internal route field (Figure 20).
    The Direct component created and name parameter for Direct component. ​
    Figure 20: The Direct component created and the name parameter for Direct component. ​
  6. Add more steps to the route. Click the + icon under the Direct Route (Figure 21).
    The + icon below Direct component.
    Figure 21: The + icon below Direct component.
  7. Choose the Routing tab, then search for the word log (Figure 22).
    Choose the Routing tab, then search for “log”.
    Figure 22: Choose the Routing tab, then search for “log”.
  8. Configure the Log to print message ${body} (Figure 23).
    Configure the log.
    Figure 23: Configure the log.

Create a simple REST API

  1. Click on the REST tab, then select Create service (Figure 24).
    The +Create service button under the REST tab.
    Figure 24: The +Create service button under the REST tab.
  2. Select Add method (Figure 25).
    The +Add method button for REST.
    Figure 25: The +Add method button for REST.
  3. Choose the Post method (Figure 26).
    The Post method for HTTP method.
    Figure 26: The Post method for HTTP method.
  4. Link the REST endpoints to the direct route. Inside the setting for the POST method, select To : direct:my-internal-route (Figure 27). This will route the incoming request to my-internal-route.
    The setting for POST method with direct:my-internal-route selected.
    Figure 27: The setting for POST method with direct:my-internal-route selected.
  5. You can inspect the content of the Camel YAML file by double-clicking the hello-world.camel.yaml file in the project explorer. In Figure 28, the IDs are randomly generated.
    Inspect the content of the Camel yaml file.
    Figure 28: Inspect the content of the Camel yaml file.

Congratulations! You have successfully created a Camel route file. Now let's run and test it inside OpenShift.

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Install the Karavan extension, then scaffold a new Camel project
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Run and test inside OpenShift Dev Spaces and deploy it to OpenShift