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Create an OLCNE cluster.

See OLCNE cluster.

The cluster must have at least 3 worker nodes.

Create an NFS server.

For an example that uses an NFS server on Oracle Linux, see Create an NFS server on Oracle Linux.

a. Install the NFS utility package on the server and client instances.

sudo dnf install -y nfs-utils

b. Create a directory for your shared files. Make sure that the server does not have root ownership.

c. Define the shared directory in /etc/exports with the correct permissions. Make sure to disable root squashing.

<path to directory> <ip-address/subnet-mask>(rw,sync,no_root_squash,no_subtree_check)

d. Set the firewall to allow NFS traffic.

sudo firewall-cmd --permanent --zone=public --add-service=nfs
sudo firewall-cmd --reload
sudo firewall-cmd --list-all

e. Enable and start the NFS service.

sudo systemctl enable --now nfs-server

Deploy an NFS provisioner to your cluster.

a. Install an NFS client provisioner of your choice.

For an example, see Kubernetes NFS Subdir External Provisioner.

b. Add the required Helm repo.

helm repo add nfs-subdir-external-provisioner https://kubernetes-sigs.github.io/nfs-subdir-external-provisioner/

c. Install the provisioner. Set your storage class as a default and create a service account.

helm install nfs-test \--set nfs.server=<server ip address> \--set nfs.path=<path> \--set storageClass.name=<name> \--set storageClass.defaultClass=true,rbac.create=true \--set storageClass.provisionerName=nfsclientprov/nfs \--set serviceAccount.create=true \--set serviceAccount.name=nfs-svc-acc-nfs nfs-subdir-external-provisioner/nfs-subdir-external-provisioner

d. Only one storage class should be listed as the default. If required, edit the other storage classes and delete the following annotation:

storageclass.kubernetes.io/is-default-class: "true"

完结！