tekton-custom-task

Using Tekton Custom Task on KFP

This example shows how to define any Tekton Custom Task on KFP-Tekton and handle the custom task inputs and outputs.

prerequisites

• Install KFP Tekton prerequisites

Instructions

1. Install the Condtion custom task controller for computing runtime conditions for this example. Make sure to setup GOPATH and ko before running the commands below.

   git clone https://github.com/tektoncd/experimental/
   cd experimental/cel
   ko apply -f config/

2. Compile the flip-coin pipeline using the compiler inside the python code. The kfp-tekton SDK will produce a Tekton pipeline yaml definition in the same directory called tekton-custom-task.yaml.

   # Compile the python code
   python tekton-custom-task.py
   

Then, upload the tekton-custom-task.yaml file to the Kubeflow pipeline dashboard with Tekton Backend to run this pipeline.

Troubleshooting

Make sure the Tekton deployment enabled custom task as instructed in the KFP-Tekton deployment.

kubectl patch cm feature-flags -n tekton-pipelines \
     -p '{"data":{"disable-home-env-overwrite":"true","disable-working-directory-overwrite":"true", "enable-custom-tasks": "true"}}'