73 lines
2.6 KiB
Markdown
73 lines
2.6 KiB
Markdown
## CSI driver debug tips
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### Case#1: volume create/delete failed
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- locate csi driver pod
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```console
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$ kubectl get po -o wide -n kube-system | grep csi-smb-controller
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NAME READY STATUS RESTARTS AGE IP NODE
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csi-smb-controller-56bfddd689-dh5tk 5/5 Running 0 35s 10.240.0.19 k8s-agentpool-22533604-0
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csi-smb-controller-56bfddd689-sl4ll 5/5 Running 0 35s 10.240.0.23 k8s-agentpool-22533604-1
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```
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- get csi driver logs
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```console
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$ kubectl logs csi-smb-controller-56bfddd689-dh5tk -c smb -n kube-system > csi-smb-controller.log
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```
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> note: there could be multiple controller pods, if there are no helpful logs, try to get logs from other controller pods
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### Case#2: volume mount/unmount failed
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- locate csi driver pod and make sure which pod do tha actual volume mount/unmount
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```console
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$ kubectl get po -o wide -n kube-system | grep csi-smb-node
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NAME READY STATUS RESTARTS AGE IP NODE
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csi-smb-node-cvgbs 3/3 Running 0 7m4s 10.240.0.35 k8s-agentpool-22533604-1
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csi-smb-node-dr4s4 3/3 Running 0 7m4s 10.240.0.4 k8s-agentpool-22533604-0
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```
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- get csi driver logs
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```console
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$ kubectl logs csi-smb-node-cvgbs -c smb -n kube-system > csi-smb-node.log
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```
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- check cifs mount inside driver
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```console
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kubectl exec -it csi-smb-node-cvgbs -n kube-system -c smb -- mount | grep cifs
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```
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#### Update driver version quickly by editing driver deployment directly
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- update controller deployment
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```console
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kubectl edit deployment csi-smb-controller -n kube-system
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```
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- update daemonset deployment
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```console
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kubectl edit ds csi-smb-node -n kube-system
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```
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change below deployment config, e.g.
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```console
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image: mcr.microsoft.com/k8s/csi/smb-csi:v1.1.0
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imagePullPolicy: Always
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```
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### troubleshooting connection failure on agent node
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- On Linux node
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```console
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mkdir /tmp/test
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sudo mount -v -t cifs //smb-server/fileshare /tmp/test -o vers=3.0,username=accountname,password=accountkey,dir_mode=0777,file_mode=0777,cache=strict,actimeo=30
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```
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- Check whether original smb mount directory works
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```console
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sudo mount | grep cifs
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```
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- On Windows node
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```console
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$User = "AZURE\USERNAME"
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$PWord = ConvertTo-SecureString -String "PASSWORD" -AsPlainText -Force
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$Credential = New-Object –TypeName System.Management.Automation.PSCredential –ArgumentList $User, $Pword
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New-SmbGlobalMapping -LocalPath x: -RemotePath \\smb-server\fileshare -Credential $Credential
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Get-SmbGlobalMapping
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cd x:
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dir
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```
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