Tekton pipeline conditional run

Question

I have a pipeline with following tasks.

- name: A
     taskRef:
        name: buildah-secondary-tag-task       
      runAfter:
        -  maven-prepare-package
      when:
        - input: "$(params.type)"
          operator: in
          values: ["app"]
- name: B
      taskRef:
        name: buildah-secondary-tag-task       
      runAfter:
        -  maven-prepare-package
      when:
        - input: "$(params.courtType)"
          operator: in
          values: ["bapp"]

 - name: C 
      taskRef:
        name: buildah-secondary-tag-task
      runAfter:
        -  A 

Task A and B are different depending on the params.type A or B is executed but Task C has to run after A or B has been exectued. How can I specify in the that condition in runAfter for task C

Answer 1

Using a single pipeline, you can not ensure task C would runAfter A and B, unless both A and B were executed, see docs somewhat hinting that "when" condition evaluating to false would block execution for tasks that "runAfter" that conditional task.

What you could try is to add some "finally" block, that would either trigger another Pipeline, or include your task C.