Cherry-pick #18882 to 7.x: Add better handling for Kubernetes Update and Delete watcher events

[ChrsMark]

Cherry-pick of PR #18882 to 7.x branch. Original message:

Improvements for #11834 described on #11834 (comment)

Changes:

1. Retry on configCheck failures in order to cover stop/start events.
2. Ignore Update events when status of Pod is Pending.
3. Emit delete anywayeven if the obj cannot be found in thestore` at

   beats/libbeat/common/kubernetes/watcher.go

   Line 202 in 95626b8

   o, exists, err := w.store.GetByKey(key)

   , so as to ensure that states are cleaned anyway.

[elasticmachine]

Pinging @elastic/integrations-platforms (Team:Platforms)

[elasticmachine]

💚 Build Succeeded

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Build stats

• Build Cause: [Pull request #19232 opened]

• Start Time: 2020-06-17T07:09:44.197+0000

• Duration: 79 min 52 sec

Test stats 🧪

Test	Results
Failed	0
Passed	6778
Skipped	1069
Total	7847

Steps errors

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• Name: Report to Codecov

  • Description: curl -sSLo codecov https://codecov.io/bash for i in auditbeat filebeat heartbeat libbeat metricbeat packetbeat winlogbeat journalbeat do FILE="${i}/build/coverage/full.cov" if [ -f "${FILE}" ]; then bash codecov -f "${FILE}" fi done

  • Duration: 2 min 22 sec

  • Start Time: 2020-06-17T07:35:47.462+0000

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