No logs in stdout/stderr if uses stdoutConfig

[ghost]

Expected Behavior

Should have log

Actual Behavior

No logs

Steps to Reproduce the Problem

1. Run kubectl create -f test.yaml to create a taskrun
2. Run k get pod | grep test to the pod id
3. Run kl pod/testlvv64-pod, there is no any log. but the doc says Once stdoutConfig.path or stderrConfig.path is specified, the corresponding output stream will be duplicated to both the given file and the standard output stream of the container, so users can still view the output through the Pod log API.

Additional Info

• Kubernetes version:

  Output of kubectl version:

Client Version: version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.9", GitCommit:"9710807c82740b9799453677c977758becf0acbb", GitTreeState:"clean", BuildDate:"2022-12-08T10:15:09Z", GoVersion:"go1.18.9", Compiler:"gc", Platform:"darwin/amd64"}
Kustomize Version: v4.5.4
Server Version: version.Info{Major:"1", Minor:"24+", GitVersion:"v1.24.8-eks-ffeb93d", GitCommit:"abb98ec0631dfe573ec5eae40dc48fd8f2017424", GitTreeState:"clean", BuildDate:"2022-11-29T18:45:03Z", GoVersion:"go1.18.8", Compiler:"gc", Platform:"linux/amd64"}

• Tekton Pipeline version:

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

Client version: 0.28.0
Pipeline version: v0.42.0
Triggers version: v0.22.0
Dashboard version: v0.31.0
Operator version: v0.64.0

the test.yaml file

kind: TaskRun
apiVersion: tekton.dev/v1beta1
metadata:
  generateName: test
spec:
  serviceAccountName: default
  taskSpec:
    volumes:
      - name: data
    steps:
      - name: echo
        image: alpine
        volumeMounts:
          - name: data
            mountPath: /data
        onError: continue
        script: |
          #!/bin/sh

          echo -n "hello world"
          echo "not an error" && nonsense
        stdoutConfig:
          path: /data/log
        stderrConfig:
          path: /data/error

[chengjoey]

hi @lsdbitrue , thank you for opening this issue about strdout log, i am willing to try to fix it

[khrm]

/assign @chengjoey