NFS credentials

[santimar]

Is your feature request related to a problem?/Why is this needed
Right now it seems that this driver can only mount NFS volumes if server allow anonymous access.
2 years ago, on kubernetes-sigs/nfs-subdir-external-provisioner#136 (comment) was said that this feature could have been implemented here but I wasn't able to find anything related.

Describe the solution you'd like in detail
A way to set some kind of credentials to perform authentication (eg Kerberos, sys)

Additional context
none

[viceice]

need this too. on ionos the shared storage uses kerberos 😕

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/lifecycle stale

[NigelVanHattum]

/remove-lifecycle stale