Unable to lookup entrypoint linux/arm64

[arewm]

I am running Tekton within a KinD environment on a mac. When I have a TaskRun with an entrypoint, the container fails.

---
apiVersion: tekton.dev/v1
kind: TaskRun
metadata:
  name: test-tekton-arm64-bug-fails
  namespace: default
spec:
  taskSpec:
    steps:
      - name: test-with-args
        image: alpine
        args:
          - echo
          - "This will fail on Linux ARM64"

Expected Behavior

The step will echo the command successfully

Actual Behavior

Step fails immediately with:

ERROR failed to get CPU variant os=linux error="getCPUVariant for OS linux: not implemented"
could not find command for platform "linux/arm64"

Steps to Reproduce the Problem

Additional Info

• Kubernetes version:

  Output of kubectl version:

(paste your output here)

• 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}'

(paste your output here)

[vdemeester]

Found the issue, that came from fded1a6#diff-6ba46b30f6217830cbbed7526eb4c6eb837bc35dbd6364549242c146904003b1R176.
We will have to backport the fix (that I'll split from b1929e1) to all LTSes, as essentially arm64 is broken in some cases in all the one in support (except 0.68.x)

[arewm]

Oh, wow. Thanks for that thorough investigation (and for adding e2e test cases)!