Running opennebula as VM

Discuss
1

Please refer to http://docs.opennebula.org/4.12/advanced_administration/high_availability/oneha.html

“OpenNebula can be (and it is usually) installed in a virtual machine.
Therefore the previous one-server1 and one-server2 can be in fact
virtual machines running in the same physical host (you can run them
in different hosts, requiring a different fencing plugin)”

I am wondering what is the best practice for running Opennebula as VM. Can anyone comment on that ?
Do we use virt-install to create VMs ? Virt manager ? Since KVM is installed this should not be a problem.
Any comments ?

Cheers

Rad

2

We have two frontends and two sunstone servers in seperate VM’s on seperate hosts. We manage them through virsh / virt-manager. We have one primary master (running opennebula) and one slave that use MySQL master-master replication. We don’t do automatic failovers (not for opennebula, not for vm’s running on hosts) so no fancing is needed.

3

Hi !

Thank you . I remember you from Berlin Conference and we had good time ! Do you remember ? I would like to know why you chose to run opennebula as VM when you had physical hosts at your disposal .

Cheers

Rad

4

varadarajan forum@opennebula.org writes:

[…]

I am wondering what is the best practice for running Opennebula as VM. Can anyone comment on that ?
Do we use virt-install to create VMs ? Virt manager ? Since KVM is installed this should not be a problem.
Any comments ?

Hello,

We use corosync/pacemaker with a shared /var/lib/one/datastores.

We actually do not have redundant setup, the frontend VM is started
somewhere else when a node get fenced.

Here is the cleaned pacemaker configuration if you want to see how it
looks:
pcmk.conf (7.56 KB)

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