Tekton PipelineRun workspace not found

A workspace in the PipelineRun does not exist.

Understanding Tekton and Its Purpose

Tekton is an open-source framework for creating CI/CD systems. It provides Kubernetes-style resources for declaring CI/CD-style pipelines. Tekton allows developers to build, test, and deploy across cloud providers and on-premise systems. By leveraging Kubernetes, Tekton offers a cloud-native way to manage and execute pipelines.

Identifying the Symptom: PipelineRun Workspace Not Found

When working with Tekton, you might encounter an error message stating: PipelineRun workspace not found. This error typically occurs when a workspace specified in a PipelineRun is not properly defined or bound, leading to execution failures.

Common Observations

  • The PipelineRun fails to start or execute.
  • Error logs indicate missing workspace bindings.
  • Tasks within the pipeline cannot access necessary resources.

Exploring the Issue: Missing Workspace in PipelineRun

The error arises when a PipelineRun is configured to use a workspace that hasn't been defined or bound correctly. Workspaces in Tekton are used to share data between tasks and persist data across pipeline executions. If a workspace is not properly set up, tasks that rely on it will fail to execute.

Root Cause Analysis

The root cause of this issue is typically a misconfiguration in the PipelineRun specification. This can happen if:

  • The workspace is not declared in the Pipeline or PipelineRun spec.
  • The workspace is declared but not bound to a volume or PVC (Persistent Volume Claim).
  • There is a typo or mismatch in the workspace name between the Pipeline and PipelineRun.

Steps to Resolve the PipelineRun Workspace Issue

To resolve the PipelineRun workspace not found error, follow these steps:

Step 1: Verify Workspace Declaration

Ensure that the workspace is declared in both the Pipeline and PipelineRun specifications. Check for any typos or mismatches in the workspace names.

apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
name: example-pipeline
spec:
workspaces:
- name: shared-workspace
tasks:
- name: example-task
workspaces:
- name: shared-workspace

Step 2: Bind the Workspace in PipelineRun

Ensure that the PipelineRun binds the workspace to a valid volume or PVC. This binding allows the workspace to be used during the pipeline execution.

apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
name: example-pipelinerun
spec:
pipelineRef:
name: example-pipeline
workspaces:
- name: shared-workspace
persistentVolumeClaim:
claimName: my-pvc

Step 3: Validate the Configuration

After making changes, validate your configuration by applying the updated Pipeline and PipelineRun resources. Use the following command:

kubectl apply -f pipeline.yaml
kubectl apply -f pipelinerun.yaml

Additional Resources

For more information on Tekton workspaces, refer to the official Tekton Workspaces Documentation. You can also explore the Tekton GitHub Repository for examples and community support.

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