nfs

Server

Install server that allows you to share directories

apt -y install nfs-kernel-server

Create folder

mkdir /mnt/kubedata
chown nobody:nogroup kubedata

Configuring the NFS Exports

vi /etc/exports

format:
directory_to_share    client_ip(share_option1,...,share_optionN)
directory_to_share    *(share_option1,...,share_optionN)

/mnt/kubedata       *(rw,sync,no_subtree_check,no_root_squash,no_all_squash,insecure)

Options

• rw: This option gives the client computer both read and write access to the volume.
• sync: This option forces NFS to write changes to disk before replying. This results in a more stable and consistent environment since the reply reflects the actual state of the remote volume. However, it also reduces the speed of file operations.
• no_subtree_check: This option prevents subtree checking, which is a process where the host must check whether the file is actually still available in the exported tree for every request. This can cause many problems when a file is renamed while the client has it opened. In almost all cases, it is better to disable subtree checking.
• no_root_squash: By default, NFS translates requests from a root user remotely into a non-privileged user on the server. This was intended as security feature to prevent a root account on the client from using the file system of the host as root. no_root_squash disables this behavior for certain shares.

with sed

echo "/mnt/kubedata       *(rw,sync,no_subtree_check,no_root_squash,no_all_squash,insecure)" >> /etc/exports

Restart and enable server

systemctl restart nfs-kernel-server
systemctl enable nfs-kernel-server

Client

apt -y install nfs-common

Create directory for the mount

mkdir -p /nfs/kubedata

Mount nfs share

mount host_ip:/mnt/kubedata /nfs/kubedata