How to migrate the NFS repository to a new NFS destination

Introduction

This document describes the steps to migrate the NFS repository to a new NFS destination.

We will explain the migration for an environment with the following separate elements:

Abiquo Server
Abiquo RS
Abiquo BPM (V2V)
KVM hypervisor
ESX hypervisor

This procedure was tested on Abiquo 5.1.0.

Requirements

Rsync

Migration steps

1. Synchronize the NFS from the destination NFS

#> mount -t nfs ORIGIN_IP:/opt/vm_repository /mnt
#> mkdir /opt/vm_repository
#> rsync -avvv /mnt/ /opt/vm_repository/

Be careful to put the "/" at the end of the folder name as in the example, to make the copy correctly

2. Stop Abiquo Server, Abiquo RS and Abiquo BPM

Stop the Tomcat servers in the correct order: 1. Abiquo Server, 2. Abiquo RS, 3. Abiquo BPM (V2V)

3. Synchronize the NFS again from the destination NFS

Repeat the synchronization in case there are any changes

4. Update database and set the correct value for the repository

mysql> select * from repository;
+--------------+--------------+--------------------+---------------------------------+-----------+
| idRepository | idDataCenter | name               | URL                             | version_c |
+--------------+--------------+--------------------+---------------------------------+-----------+
|            1 |            1 | virtual image repo | 10.60.13.25:/opt/vm_repository |         0 | 
+--------------+--------------+--------------------+---------------------------------+-----------+
1 row in set (0.00 sec)

mysql> update repository set URL = "NEW_IP:/opt/vm_repository" where idDatacenter = <YOUR_DATACENTER_ID>;

5. Update mount point on Abiquo RS, Abiquo BPM and all KVM hypervisors

#> vi /etc/fstab

** Modify:
** 10.60.13.25:/opt/vm_repository /opt/vm_repository  nfs defaults    0 0
** For:
** NEW_IP:/opt/vm_repository /opt/vm_repository  nfs defaults    0 0

#> umount -l /opt/vm_repository
#> mount /opt/vm_repository

If you have updated the repository for KVM hypervisors, restart abiquo-aim

#> /etc/init.d/abiquo-aim restart

For your ESX hypervisors, you don't need to do anything, but we advise you to delete the old repository from the storage view manually

6. on Abiquo RS and Abiquo BPM (V2V), Edit /opt/abiquo/config/abiquo.properties

** Modify the property abiquo.appliancemanager.repositoryLocation and set the new IP of the NFS.
abiquo.appliancemanager.repositoryLocation = NEW_IP:/opt/vm_repository
** Do the same if you have set the following values in your environment:
abiquo.virtualfactory.hyperv.repositoryLocation
abiquo.virtualfactory.xenserver.repositoryLocation

7. Start Abiquo BPM, Abiquo RS and Abiquo Server

Restart the Tomcat servers in the correct order: 1. Abiquo BPM (V2V), 2. Abiquo RS, 3. Abiquo Server