apiVersion: batch/v1
kind: Job
metadata:
  name: job-backoff-limit-per-index-failindex
spec:
  completions: 4
  parallelism: 2
  completionMode: Indexed
  backoffLimitPerIndex: 1
  template:
    spec:
      restartPolicy: Never
      containers:
      - name: main
        image: docker.io/library/python:3
        command:
          # The script:
          # - fails the Pod with index 0 with exit code 1, which results in one retry;
          # - fails the Pod with index 1 with exit code 42 which results
          #   in failing the index without retry.
          # - succeeds Pods with any other index.
          - python3
          - -c
          - |
            import os, sys
            index = int(os.environ.get("JOB_COMPLETION_INDEX"))
            if index == 0:
              sys.exit(1)
            elif index == 1:
              sys.exit(42)
            else:
              sys.exit(0)
  backoffLimit: 6
  podFailurePolicy:
    rules:
    - action: FailIndex
      onExitCodes:
        containerName: main
        operator: In
        values: [42]