Using the notin operator

In the previous example, you blocked a task execution by using a when expression. Sometimes, you might want to perform another task if a value is not matched. By using the notin operator, you can add what would be similar to an else statement. For this following example, you will add a You lose message when the number is not 3:

1. Copy over the pipeline from game.yaml into a new file called guess-notin.yaml. Change the name of this new pipeline to guess-game-notin, and keep everything else:

   apiVersion: tekton.dev/v1beta1 
   kind: Pipeline 
   metadata: 
    name: guess-game-notin 
   spec: 
    params: 
   ...
     tasks: 
      - name: win 
   … 

2. At the end of this pipeline, add a new task called lose. This task object will reference the same logger task. As a parameter, it will take You lose as the value for text:

      - name: lose 
        params: 
          - name: text 
       ...