Chapter 6

In this chapter, you learned one important concept called finally tasks. In this section, you will put this knowledge to work and use exit codes to change the final output of your pipelines.

Fail if root

Create a pipeline with a simple task. This task will check whether the container is running as the root user. If it is indeed running as the root user, the task will fail.

Here is a possible solution for the exercise:

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: fail-if-root
spec:
  steps:
    - name: fail-if-root
      image: registry.access.redhat.com/ubi8/ubi
      script: |
        if [ $(whoami) == "root" ]
          then
            echo "User is root"
    ...