[SPARK-34764][CORE][K8S][UI] Propagate reason for exec loss to Web UI#32436

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holdenk wants to merge 12 commits intoapache:masterfrom

holdenk:SPARK-34764-propegate-reason-for-exec-loss

Commits on May 4, 2021

Add a utility function for describing kubernetes exit codes and propegate it to the test as well
holdenk
committed
We don't use alive to gate anymore so the UI can get the exec loss reason, update the test to match this change
holdenk
committed

Commits on May 5, 2021

Update resource-managers/kubernetes/core/src/main/scala/org/apache/spark/scheduler/cluster/k8s/ExecutorPodsLifecycleManager.scala

holdenk
and
8bitreid
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Commits on May 11, 2021