Missing mention to the 'FailedToRetrieveImagePullSecret' event

[kaisoz]

This is a Bug Report

Problem:
A new 'FailedToRetrieveImagePullSecret' event is logged when a pod references a secret containing registry credentials and the secret doesn't exist (#117927). The documentation doesn't mention this event in any of its pages.

Proposed Solution:
As suggested here, update the docs to show an example of what happens if you create a Pod that doesn't have a valid imagePullSecrets

Page to Update:
https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
https://kubernetes.io/docs/tasks/debug/debug-application/debug-pods/

[k8s-ci-robot]

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