report vmPowerStateUnknown when vmssVM intanceView is nil

[jwtty]

What type of PR is this?

/kind bug

What this PR does / why we need it:

When vmssVM instanceView or instanceView.Status is nil, it means the vm is under deleting, and GetPowerState() should not return powerStateStopped. This can result in a deleting vm being considered mistakenly as stopped and thus node shutdown/node out-of-service taints are added.
Fix log also.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Fix the potential error that a deleting vmss instance is considered as shutdown.

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

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jwtty

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[jwtty]

/retest

[nilo19]

Do we need to change the counterparts of availabilitySet and vmss flex as well?

[jwtty]

Do we need to change the counterparts of availabilitySet and vmss flex as well?

Thanks, fixed those two also.

[nilo19]

/lgtm

[jwtty]

/cherrypick release-1.28

[jwtty]

/cherrypick release-1.27

[k8s-infra-cherrypick-robot]

@jwtty: new pull request created: #4804

In response to this:

/cherrypick release-1.28

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-infra-cherrypick-robot]

@jwtty: new pull request created: #4805

In response to this:

/cherrypick release-1.27

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[jwtty]

/cherrypick release-1.26

[jwtty]

/cherrypick release-1.25

[k8s-infra-cherrypick-robot]

@jwtty: new pull request created: #4806

In response to this:

/cherrypick release-1.26

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[k8s-infra-cherrypick-robot]

@jwtty: #4798 failed to apply on top of branch "release-1.25":

Applying: report vmPowerStateUnknown when vmssVM intanceView is nil
Using index info to reconstruct a base tree...
M	pkg/provider/azure.go
M	pkg/provider/azure_instances.go
M	pkg/provider/azure_standard.go
M	pkg/provider/azure_standard_test.go
M	pkg/provider/azure_vmss.go
M	pkg/provider/azure_vmss_test.go
M	pkg/provider/azure_vmssflex.go
M	pkg/provider/azure_vmssflex_test.go
Falling back to patching base and 3-way merge...
Auto-merging pkg/provider/azure_vmssflex_test.go
Auto-merging pkg/provider/azure_vmssflex.go
Auto-merging pkg/provider/azure_vmss_test.go
Auto-merging pkg/provider/azure_vmss.go
Auto-merging pkg/provider/azure_standard_test.go
Auto-merging pkg/provider/azure_standard.go
Auto-merging pkg/provider/azure_instances.go
Auto-merging pkg/provider/azure.go
CONFLICT (content): Merge conflict in pkg/provider/azure.go
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 report vmPowerStateUnknown when vmssVM intanceView is nil
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherrypick release-1.25

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.