Creating a Persistent Volume Directory

6.3 Creating a Persistent Volume Directory

As referenced in System Requirements for OAM on Kubernetes, the nodes in the Kubernetes cluster must have access to a persistent volume such as a Network File System (NFS) mount or a shared file system.

In the examples below an NFS volume is mounted on all nodes in the Kubernetes cluster, and is accessible via the directory /nfs_volumes/oam/accessdomainpv.

Perform the following steps:

On the administrative host, run the following command to create an accessdomainpv directory:

cd <persistent_volume>
mkdir accessdomainpv
sudo chown -R 1000:0 accessdomainpv

For example:

cd /nfs_volumes/oam
mkdir accessdomainpv   
sudo chown -R 1000:0 accessdomainpv

On the administrative host run the following to ensure it is possible to read and write to the persistent volume:

Note:
The following assumes the user creating the file has userid 1000 or is part of group 0.
```
cd <persistent_volume>/accessdomainpv
touch fileadmin.txt
ls fileadmin.txt
```
For example:
```
cd /nfs_volumes/oam/accessdomainpv
touch fileadmin.txt
ls fileadmin.txt
```