Installing PV

Created : 22/05/2032 | on Linux
Status: Draft

If you have already created a Storage Pool and a Volume, here are the next steps:

1. Create an NFS Shared Folder on QNAP:

   • In the QTS Management Console, go to “Control Panel” > “Shared Folder”.
   • Click “Create” > “Shared Folder”.
   • Enter a folder name and description, then choose the volume that you just created.
   • Set the disk quota for the shared folder. For instance, to make 25TB available to Kubernetes, set this as the disk quota.
   • Click “Create”.

2. Set Permissions for the NFS Shared Folder:

   • After creating the shared folder, click on “Access Permissions” in the folder’s options.
   • In the “Permission Type” dropdown, select “NFS Host Access”.
   • Enter the IP address or hostname of your Kubernetes nodes.
   • Set the “Access Right” to “No Limit”.
   • Click “Apply”.

3. Enable NFS Service on QNAP:

   • In the QTS Management Console, go to “Control Panel” > “Network & File Services” > “Win/Mac/NFS”.
   • Go to the “NFS Service” tab and check “Enable NFS”.
   • Click “Apply”.

4. Install NFS Client on Kubernetes Nodes:

   Install an NFS client on each of your Kubernetes nodes. If you’re using Ubuntu, you’d run:

   sudo apt update
   sudo apt install nfs-common
   

5. Deploy NFS Provisioner to Kubernetes:

   Deploy the NFS-client provisioner in your Kubernetes cluster. This requires Helm to be installed. If you don’t have it, follow the instructions at https://helm.sh/docs/intro/install/ to install it.

   • Clone the nfs-subdir-external-provisioner repository:

     git clone https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner.git
     

   • Deploy the NFS provisioner:

     cd nfs-subdir-external-provisioner/
     helm install nfs-subdir-external-provisioner ./charts/nfs-subdir-external-provisioner \
       --set nfs.server=<nfs_server_ip> \
       --set nfs.path=<path_to_your_nfs_root>
     

   Replace <nfs_server_ip> with the IP address of your QNAP NAS server and <path_to_your_nfs_root> with the path to the NFS share you created.

5.1. Create a default storageclass

when we create pvcs if a storage class is not specified the cluster will try to use a default storage class, the storage provisioner creates a storage class called nfs-client and we can make that the default storage class with the command.

  kubectl patch storageclass nfs-client -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'

with this all the new pvcs that don;t have a storage class mentioned will be allocated to the default storage class.

1. Create PersistentVolumeClaims:

   You can now create PersistentVolumeClaims (PVCs) in your Kubernetes cluster. These PVCs will dynamically provision PersistentVolumes (PVs) using the NFS share on your QNAP NAS.

   Here’s an example PVC:

   apiVersion: v1
   kind: PersistentVolumeClaim
   metadata:
     name: my-pvc
   spec:
     accessModes:
       - ReadWriteOnce
     resources:
       requests:
         storage: 1Ti
   

Please replace placeholders in the commands with your actual values and adjust configurations according to your environment and security requirements.

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