Debug ingress 502

Workflow runs for Debug ingress 502

• Refine ingress-502 repro: drop buggy DNS probe, capture supervisor log

  failed:
  Debug ingress 502#2:Commitd615fafpushedbyChrisJBurns
  debug-ingress-502-repro

  Jul 27, 20263m 49s
  More actions for workflow run 2

• Add throwaway ingress-502 stress repro (do not merge)

  failed:
  Debug ingress 502#1:Commit9035481pushedbyChrisJBurns
  debug-ingress-502-repro

  Jul 27, 20263m 41s
  More actions for workflow run 1