Entrypoint cancellation is a bit "noisy" and scary

[vdemeester]

Expected Behavior

When running a PipelineRun (such as below) or TaskRun, I expected to only see the output of my Task if everything goes well.

Actual Behavior

The entrypoint cancellation feature (from #6511) seems to log some error when it's a normal behavior (aka no cancel was called).

[add-uid : uid] {"level":"error","ts":1698142443.0641263,"caller":"entrypoint/entrypointer.go:178","msg":"Error while waiting for cancellation{error 26 0  context canceled}","stacktrace":"github.com/tektoncd/pipeline/pkg/entrypoint.Entrypointer.Go.func2\n\tgithub.com/tektoncd/pipeline/pkg/entrypoint/entrypointer.go:178"}

Steps to Reproduce the Problem

cat <<'EOF' | kubectl create -f -
---
apiVersion: tekton.dev/v1
kind: Task
metadata:
  name: uid-task
spec:
  results:
    - name: uid
  steps:
    - name: uid
      image: alpine
      command: ["/bin/sh", "-c"]
      args:
        - echo "1001" | tee $(results.uid.path)
---
apiVersion: tekton.dev/v1
kind: PipelineRun
metadata:
  name: uid-pipeline-run
spec:
  pipelineSpec:
    tasks:
    - name: add-uid
      taskRef:
        name: uid-task
    - name: show-uid
      taskSpec:
        steps:
          - name: show-uid
            image: alpine
            command: ["/bin/sh", "-c"]
            args:
              - echo $(tasks.add-uid.results.uid)
EOF

1. Run the above tekton PipelineRun
2. Look at the logs

Additional Info

• Kubernetes version: 1.26

  Output of kubectl version:

(paste your output here)

• Tekton Pipeline version: main branch

  Output of tkn version or kubectl get pods -n tekton-pipelines -l app=tekton-pipelines-controller -o=jsonpath='{.items[0].metadata.labels.version}'

(paste your output here)

[chengjoey]

/assign