Tekton workflow example

This workflow demonstrates creating Tekton resources in a Kubernetes cluster.

We create the following Kubernetes resources (in order as they appear):

• a namespace called tekton-example

• 2 Tasks, task-1 and task-2, that echo the message:

   Hi I am task #X
  

• a Pipeline that executes the tasks one after the other

• a PipelineRun for executing the Pipeline

Workflow diagram

Prerequisite

• Access to an OCP cluster with Tekton operator (Openshift pipelines) installed. The cluster credentials must allow creating the resources listed above.
• The namespace “tekton-example” must not exist within the cluster before executing the workflow

Application configuration

Application properties can be initialized from environment variables before running the application:

How to run

mvn clean quarkus:dev

Example of POST to trigger the flow:

curl -X POST -H "Content-Type: application/json" http://localhost:8080/tekton

The response will include the created resources (IDs, statuses and such)