Tekton is a powerful and flexible 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) that enable you to define pipelines, tasks, and resources, which can be executed in a Kubernetes cluster.
When working with Tekton, you might encounter an error indicating a 'Missing input resource'. This typically manifests when a TaskRun or PipelineRun is executed without the necessary input resources defined in the specification. This can halt the execution of your pipeline, leading to incomplete or failed runs.
The 'Missing input resource' issue occurs when a TaskRun or PipelineRun is initiated without specifying all the required resources. In Tekton, tasks often depend on input resources such as Git repositories, images, or other artifacts. If these inputs are not provided, the task cannot proceed as expected.
TaskRun or PipelineRun specification.To resolve this issue, follow these steps to ensure that all necessary input resources are correctly specified:
Begin by examining the Task or Pipeline specification to identify the required input resources. Ensure that each resource is correctly defined and referenced. For example:
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
name: example-task
spec:
resources:
inputs:
- name: source-repo
type: git
Check the TaskRun or PipelineRun configuration to ensure that all required resources are provided. Here is an example of a TaskRun:
apiVersion: tekton.dev/v1beta1
kind: TaskRun
metadata:
name: example-taskrun
spec:
taskRef:
name: example-task
resources:
inputs:
- name: source-repo
resourceRef:
name: my-git-resource
If you find any discrepancies or missing resources, update the configuration to include the necessary input resources. Ensure that resource names match exactly between the Task and TaskRun or PipelineRun.
For more information on Tekton and managing resources, consider visiting the following links:
By following these steps and ensuring all input resources are correctly specified, you can resolve the 'Missing input resource' issue and ensure your Tekton pipelines run smoothly.
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