feat: support RemoveSmbGlobalMapping during unmount on Windows node

[vitaliy-leschenko]

What type of PR is this?
/kind feature

What this PR does / why we need it:
This PR implement SMBUnmount method to call RemoveSmbGlobalMapping from csi-proxy

Which issue(s) this PR fixes:
Currently no one calls RemoveSmbGlobalMapping

Special notes for your reviewer:
Make sense to see together with kubernetes-csi/csi-proxy#210

Release note:

Calls RemoveSmbGlobalMapping when it necessary

[k8s-ci-robot]

Hi @vitaliy-leschenko. Thanks for your PR.

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[coveralls]

Pull Request Test Coverage Report for Build 2827044432

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.3%) to 85.445%

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Totals
Change from base Build 2802564516:	0.3%
Covered Lines:	816
Relevant Lines:	955

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💛 - Coveralls

[andyzhangx]

/ok-to-test

[vitaliy-leschenko]

/assign @andyzhangx

[vitaliy-leschenko]

As I see in logs SMBUnmount calls twice:

I0629 21:49:06.107793    8176 safe_mounter_windows.go:117] SMBUnmount: local path: c:\var\lib\kubelet\pods\333c440a-ffc8-421e-9d45-e04aff8a9d34\volumes\kubernetes.io~csi\pv-smb\mount
I0629 21:49:41.004132    8176 safe_mounter_windows.go:148] Remove directory: c:\var\lib\kubelet\pods\dec84d2f-d2e2-4f1e-ab72-1a3a5dd33845\volumes\kubernetes.io~csi\pv-smb\mount

I0629 21:49:43.479884    8176 safe_mounter_windows.go:117] SMBUnmount: local path: \var\lib\kubelet\plugins\kubernetes.io\csi\pv\pv-smb\globalmount
I0629 21:49:43.479884    8176 safe_mounter_windows.go:148] Remove directory: \var\lib\kubelet\plugins\kubernetes.io\csi\pv\pv-smb\globalmount

We need to call RemoveSmbGlobalMapping only for second case. I will do it.

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Update: fixed

[vitaliy-leschenko]

@andyzhangx currently we run unit tests with old csi-proxy: https://acs-mirror.azureedge.net/csi-proxy/v1.1.1/binaries/csi-proxy-v1.1.1.tar.gz
Can you build new csi-proxy to try run tests on both of proxies?

[andyzhangx]

@andyzhangx currently we run unit tests with old csi-proxy: https://acs-mirror.azureedge.net/csi-proxy/v1.1.1/binaries/csi-proxy-v1.1.1.tar.gz Can you build new csi-proxy to try run tests on both of proxies?

@vitaliy-leschenko does this PR depend on master branch csi-proxy?

[vitaliy-leschenko]

@vitaliy-leschenko does this PR depend on master branch csi-proxy?

No, but I want to be 100% sure.

[andyzhangx]

/lgtm
/approve
thanks for the contribution!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx, vitaliy-leschenko

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