Not able to mount on AWS EKS

[aupadh12]

Hello,

I am trying to mount a NAS windows share hosted on-prem having NTFS file system on the AWS EKS as CIFS mount.
WE need this drive mounted in a pod which is hosting an application and this application reads data from this drive.
We have installed cifs-utils on the worker nodes and also have the cifs volume driver installed using daemonset in my cluster.
But, even after these steps, I am getting below error when I am trying to mount the NAS drive as CIFS:

Warning FailedMount 12s (x7 over 45s) kubelet, ip-10-12-199-220.ec2.internal MountVolume.SetUp failed for volume "app-2" : mount command failed, status: Failure, reason: Error: Error running cmd [cmd=/usr/bin/mount -t cifs -o rw,username=user1,password=password,sec=ntlmssp,uid=0,ro 0 0 //server1/folder1$/subfolder\040Store\040MI /var/lib/kubelet/pods/1a12345e2-675a-43db-hh54-9b43re5t7gid4/volumes/org~cifs/app-2] [response=mount error(22): Invalid argument
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
]: exit status 32

Can you please let me know what am I missing?

[juliohm1978]

Hi @aupadh12! Thank you for the report.

A few questions:

1. What version of the driver are you using?

2. Does your password have any commas (,) ?

I noticed this part of the command line ro 0 0. Can you elaborate on what 0 0 means?

[aupadh12]

Hi @juliohm1978 ,

I am using the latest available version which is 2.3 and my password does not have commas but it does have '@' which I think is acceptable.
ro 0 0 does not have any significance. I tried running this even after removing the 0 0 but I am still getting the same error.
Am I missing anything here?

[juliohm1978]

Can you try running this on any node of the cluster as root?

/usr/bin/mount -t cifs -o rw,username=user1,password=password,sec=ntlmssp,uid=0,ro '//server1/folder1$/subfolder\040Store\040MI' '/mnt'

The mount command itself should work.

[aupadh12]

Hi @juliohm1978 ,

I tried few other things like including ver=1.0, and now I am getting below error:

Warning FailedMount 3s (x5 over 17s) kubelet, ip-10-12-199-220.ec2.internal MountVolume.SetUp failed for volume "app-2" : mount command failed, status: Failure, reason: Error: Error running cmd [cmd=/usr/bin/mount -t cifs -o rw,username=user1,password=password,vers=1.0,sec=ntlmssp,uid=60425,nodfs //server/vol/server_pdms/pdms_prd/[directory] /var/lib/kubelet/pods/1a12345e2-675a-43db-hh54-9b43re5t7gid4/volumes/org~cifs/app-2]] [response=Retrying with upper case share name
mount error(6): No such device or address
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
]: exit status 32

[juliohm1978]

I see. It is important that you make sure the mount command actually works outside the driver. From any node in the cluster, as root, you can test the mount using the same command line the driver is showing:

/usr/bin/mount -t cifs -o rw,username=user1,password=password,vers=1.0,sec=ntlmssp,uid=60425,nodfs //server/vol/server_pdms/pdms_prd/[directory] /mnt

Does it show the same error?

[aupadh12]

Hi @juliohm1978 ,

We tried mounting it but we got below mentioned error:

Retrying with upper case share name
mount error(6): No such device or address
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

[juliohm1978]

Sounds like you need to get your mount command line straight before using the driver. Post more details if you need more help 😄

[aupadh12]

Hi @juliohm1978 ,

I was able to mount it using this driver.
The issue was instead of this '//server1/folder1$/subfolder\040Store\040MI' , I need to use "//server1/folder1$/subfolder Store MI"
This solved the issue.

[juliohm1978]

Great to hear!