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TKGS VMware/Kubernetes ReadWriteMany Functionality with NFS-CSI

 TKGS VMware WRX Functionality with NFS CSI

ReadWriteMany Access mode in Kubernetes




When it come to RWX access mode in PVC, TKGS support it if we have the following:

1. Kubernetes is upgraded to 1.22.9 (This version supports this RWX functionality)

2. vSAN should be there in your environment (VMware uses the vpshere csi, which only support vSAN)

How to done it without vSAN:

1. Upgrade the kubernetes to version 1.22.9

2. Use NFS-CSI and then create a new storage class to be consumed.


Work Around :

2.a : Please use the below link to get the nfs-csi-driver 

https://github.com/ibraraziz/csi-driver-nfs

Note: It absolutely fine that we have multiple CSI drivers/provisioner in kubernetes (Just for information)


Step:1 Goto csi-driver-nfs/deploy/v4.0.0/ and apply that yaml into your environment.

It will create NFS csi provisioner and controller pods in namespace of kubesystem as below



Step: 2 Now create storage class and goto the example folder  csi-driver-nfs/deploy/example 

and change 3 parameters as below in yaml

---

apiVersion: storage.k8s.io/v1

kind: StorageClass

metadata:

  name: nfs-csi # 1. Your Desire name

provisioner: nfs.csi.k8s.io

parameters:

  server: nfs-server.default.svc.cluster.local # 2. your NFS server IP

  share: / #3. Your NFS mount point

reclaimPolicy: Delete

volumeBindingMode: Immediate

mountOptions:

  - nfsvers=4.1

Storage Class created as highlighted below I have created in my env:


One done your can use below yaml to create dynamic PVC (Mean no need to create manual PV) Click Here

This yaml will manage to create PV AND PVC 

Note: storageclass name should be same which you declared for your storageclass

---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc-nfs-dynamic
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Gi
  storageClassName: nfs-csi #here storageclass name must be same as declared while creating storageclass 

PV PVC created as below :


Feel Free to query : Click Here 

By: Ibrar Aziz (Cloud Enthusiast)
https://ibraraziz-cloud.blogspot.com/
https://www.linkedin.com/in/ibraraziz/


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