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Chapter 3. Camel K quick start developer tutorials

Red Hat Integration - Camel K provides quick start developer tutorials based on integration use cases available from https://github.com/openshift-integration. This chapter provides details on how to set up and deploy the following tutorials:

3.1. Deploying a basic Camel K Java integration

This tutorial demonstrates how to run a simple Java integration in the cloud on OpenShift, apply configuration and routing to an integration, and run an integration as a Kubernetes CronJob.

Prerequisites

Procedure

  1. Clone the tutorial Git repository: 

    $ git clone git@github.com:openshift-integration/camel-k-example-basic.git
    Copy to Clipboard

  2. In the VS Code navigation tree, right-click the readme.didact.md file and select Didact: Start Didact Tutorial from File. For example:

    Starting the Camel K Quickstart tutorial

    This opens a new Didact tab in VS Code to display the tutorial instructions.

  3. Follow the tutorial instructions and click the provided links to run the commands automatically.

    Alternatively, if you do not have VS Code installed with the Didact extension, you can manually enter the commands from https://github.com/openshift-integration/camel-k-example-basic.

Additional resources

3.2. Deploying a Camel K Serverless integration with Knative

This tutorial demonstrates how to deploy Camel K integrations with OpenShift Serverless in an event-driven architecture. This tutorial uses a Knative Eventing broker to communicate using an event publish-subscribe pattern in a Bitcoin trading demonstration.

This tutorial also shows how to use Camel K integrations to connect to a Knative event mesh with multiple external systems. The Camel K integrations also use Knative Serving to automatically scale up and down to zero as needed.

Prerequisites

Procedure

  1. Clone the tutorial Git repository: 

    $ git clone git@github.com:openshift-integration/camel-k-example-knative.git
    Copy to Clipboard
  2. In the VS Code navigation tree, right-click the readme.didact.md file and select Didact: Start Didact Tutorial from File. This opens a new Didact tab in VS Code to display the tutorial instructions.

  3. Follow the tutorial instructions and click the provided links to run the commands automatically.

    Alternatively, if you do not have VS Code installed with the Didact extension, you can manually enter the commands from https://github.com/openshift-integration/camel-k-example-knative.

Additional resources

3.3. Deploying a Camel K Serverless event streaming integration

This tutorial demonstrates using Camel K and OpenShift Serverless with Knative Eventing for an event-driven architecture.

The tutorial shows how to install Camel K and Serverless with Knative in an AMQ Streams cluster with an AMQ Broker cluster, and how to deploy an event streaming project to run a global hazard alert demonstration application.

Prerequisites

Procedure

  1. Clone the tutorial Git repository: 

    $ git clone git@github.com:openshift-integration/camel-k-example-event-streaming.git
    Copy to Clipboard
  2. In the VS Code navigation tree, right-click the readme.didact.md file and select Didact: Start Didact Tutorial from File. This opens a new Didact tab in VS Code to display the tutorial instructions.

  3. Follow the tutorial instructions and click the provided links to run the commands automatically.

    Alternatively, if you do not have VS Code installed with the Didact extension, you can manually enter the commands from https://github.com/openshift-integration/camel-k-example-event-streaming.

Additional resources

3.4. Deploying a Camel K Serverless API-based integration

This tutorial demonstrates using Camel K and OpenShift Serverless with Knative Serving for an API-based integration, and managing an API with 3scale API Management on OpenShift.

The tutorial shows how to configure Amazon S3-based storage, design an OpenAPI definition, and run an integration that calls the demonstration API endpoints.

Prerequisites

Procedure

  1. Clone the tutorial Git repository: 

    $ git clone git@github.com:openshift-integration/camel-k-example-api.git
    Copy to Clipboard
  2. In the VS Code navigation tree, right-click the readme.didact.md file and select Didact: Start Didact Tutorial from File. This opens a new Didact tab in VS Code to display the tutorial instructions.

  3. Follow the tutorial instructions and click the provided links to run the commands automatically.

    Alternatively, if you do not have VS Code installed with the Didact extension, you can manually enter the commands from https://github.com/openshift-integration/camel-k-example-api.

Additional resources

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