Improve terminated pod message when node is shutting down

[glebiller]

Signed-off-by: Guillaume Le Biller glebiller@Traveldoo.com

What type of PR is this?

/kind bug

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #102820
Also relates to #99986

Special notes for your reviewer:

In addition to changing the Pod Status reason and message being terminated when a node is shutting down, I also changed the Pod Admission Status reason and message on rejection when the node is shutting down.

Pod Terminated
* Reason: Shutdown ----------------------------> Terminated
* Message: Node is shutting, evicting pods ----> Pod was terminated in response to node shutdown.

Pod Rejected
* Reason: Terminated -----------------------------------------------------------> NodeShutdown
* Message: Node is in progress of shutting down, not admitting any new pods ----> Pod was rejected as node is shutting down.

Does this PR introduce a user-facing change?

Changed the Graceful Node Shutdown Pod termination reason and message.
Changed the Graceful Node Shutdown Pod rejection reason and message.

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

KEP: kubernetes/enhancements#2000
/sig node

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[ehashman]

/ok-to-test
/priority important-longterm
/triage accepted
/cc @bobbypage @rphillips

[glebiller]

@adisky I am not sure that the failed test are related (seems to be some timeout), I ran the unit test locally and it was successful. Any pointers on what I should do?
Thank you!

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[adisky]

@adisky I am not sure that the failed test are related (seems to be some timeout), I ran the unit test locally and it was successful. Any pointers on what I should do?
Thank you!

@Kissy You need to rebase your PR, all tests are failing due to this.

[glebiller]

Thank you, I saw it too late ;)

Rebased & force push to resolve conflict.

[mrunalp]

/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Kissy, mrunalp

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