Tekton TaskRun step not found

What is Tekton TaskRun step not found

Understanding Tekton: A Brief Overview

Tekton is an open-source framework for creating CI/CD systems. It allows developers to define and run continuous integration and delivery pipelines in Kubernetes. Tekton provides a set of Kubernetes Custom Resources (CRDs) for defining cloud-native build and deployment pipelines. These resources include Tasks, TaskRuns, Pipelines, and PipelineRuns.

Identifying the Symptom: TaskRun Step Not Found

When working with Tekton, you might encounter an error message stating "TaskRun step not found". This error indicates that a specific step within a TaskRun is missing or not properly defined. As a result, the TaskRun cannot execute as expected.

Common Observations

The TaskRun fails to start or execute. Error logs indicating missing steps. Pipeline execution is halted due to the missing step.

Delving into the Issue: Why Does This Happen?

The "TaskRun step not found" error typically occurs when a step defined in the TaskRun spec is not present. This can happen due to a typo, an incorrect reference, or an incomplete Task definition. Each TaskRun must have all its steps correctly defined and referenced to execute successfully.

Root Causes

Typographical errors in the step name. Missing step definitions in the Task spec. Incorrect references to steps in the TaskRun spec.

Steps to Fix the Issue: Ensuring All Steps Are Defined

To resolve the "TaskRun step not found" error, follow these steps:

Step 1: Verify Task Definition

Ensure that all steps are correctly defined in the Task spec. Check for any typographical errors or missing steps. You can view the Task definition using the following command:

kubectl get task -o yaml

Step 2: Check TaskRun Spec

Review the TaskRun spec to ensure that it correctly references all the steps defined in the Task. Use the following command to view the TaskRun:

kubectl get taskrun -o yaml

Step 3: Update and Redeploy

If you find any discrepancies, update the Task and TaskRun specs accordingly. After making the necessary changes, apply the updated configurations:

kubectl apply -f .yamlkubectl apply -f .yaml

Additional Resources

For more information on Tekton and troubleshooting TaskRuns, consider visiting the following resources:

Tekton Pipelines Documentation Tekton GitHub Repository Kubernetes Custom Resources