How to export a volume over NFS outside of a project on WEkEO Elasticity

Prerequisites

Two Ubuntu servers in various projects (not in a private network) which all have a floating IP assigned.

Host: 64.225.128.1
Client: 64.225.128.2

On both servers we will create a directory /xdata, which will be shared.

On the host

eouser@host:~$ sudo apt-get update
eouser@host:~$ sudo apt-get install nfs-kernel-server
eouser@host:~$ sudo mkdir /xdata
eouser@host:~$ sudo chown nobody:nogroup /xdata
eouser@host:~$ sudo nano /etc/exports

Add the line:

/xdata 64.225.128.2(rw,sync,no_subtree_check)

Save the file.

Start the server:

eouser@host:~$ sudo systemctl restart nfs-kernel-server

For Ubuntu 14.04 start the server with this command:

eouser@host:~$ sudo service nfs-kernel-server start

Now go to https://horizon.cloudferro.com/project/security_groups/

Create new security group.
Give it a name (eg. allow_nfs) and save by clicking "Create security group" button.
Click "manage rules".
Click "add rule"
Choose:
Rule: Custom TCP Rule

Direction: Ingress
Openport: Port
Port: 2049
Remote: CIDR
CIDR: 64.225.128.2

Click “Add”

Go to https://horizon.cloudferro.com/project/instances/

From the drop-down menu on the right of the “Host” instance, choose “Edit Security Groups”

Click on the "plus" sign on the "allow_nfs" group.
This will move the group from "All Security Groups" to "Instance Security Groups".
Click "Save".

On the Client

eouser@client:~$ sudo apt-get update
eouser@client:~$ sudo apt-get install nfs-common
eouser@client:~$ sudo mkdir /xdata
eouser@client:~$ sudo mount 64.225.128.1:/xdata /xdata

You can check if the directory is mounted:

eouser@client:~$ df -h