[Ci-users] Provision to have an extra disk in the machine returned by duffy

[Karanbir Singh]

On 23/02/16 11:45, Vishwanath Bhat wrote:
> Hi,
> 
> I am using centos-ci infra for setting up CI for glusterfs (as part of
> Storage-SIG). And we need to have a proper disk for creating lvms which
> acts as gluster bricks.
> 
> Right now duffy just gives you a machine with everything in root
> filesystem. This is not optimal for testing glusterfs for many reasons.
> Is it possible to request duffy to give a machine with small amount of
> storage for root and rest for our testing? It is Okay for us to wait for
> few minutes until duffy gives us the machines.

We should have this working in the near term. The aim is to have another
api call to Duffy that allows you to submit your own kickstart, and wait
for the machine to redeploy ( it would be 4 to 7 minutes depending on
activity ).

The backing disks however, are limited - so you could potentially do a
large vg, with only a small chunk allocated, but you wont be able to
actually do multiple block devices ( yet ).

The option of having iscsi blocks available for folks to consume has
been thrashed out as well, its on the cards, but I dont think we are
going to be in a position to get that setup in the next 4 to 8 week
period ( basically, this becomes an option once we are all consolidated
into the new hosting facility, but have no confirmed date for that yet
other than - in the next few months ).

> 
> Is there any workaround or any hack that we could do to get this done?

https://github.com/kbsingh/centos-ci-scripts/blob/master/create_looped_disk.sh
perhaps ? use that to setup some disks... ideally, to not do any
performance numbers though :)


-- 
Karanbir Singh
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