Alan Bishop abishop at redhat.com
Fri Jul 12 14:11:03 UTC 2019

On Fri, Jul 12, 2019 at 6:09 AM Tomáš Bredár <tomas.bredar at gmail.com> wrote:

> Hi Emilien!
> Thanks for your help. Yes with this I am able to define multiple stanzas
> in cinder.conf. However netapp driver needs a .conf file with the nfs
> shares listed in it. Defining multiple configuration files with nfs share
> details in each is not possible with the manual you've sent nor with the
> templates in my first email.

Hi Tomas,

When deploying a single backend, the tripleo template takes care of
generating the nfs shares file (actually, puppet-cinder generates the file,
but it's triggered by tripleo). But when you use the custom backend method
that Emilien pointed you to use, then you are responsible for supplying all
the pieces for the backend(s) to function correctly. This means you will
need to generate the nfs shares file on the host (controller), and then
bind mount the file using CinderVolumeOptVolumes so that the shares file on
the host is visible to the cinder-volume process running in a container.

I'm wondering if it's possible to define a second backend by creating
> another service, for example "OS::TripleO::Services::CinderBackendNetApp2" ?

Sorry, this won't work. TripleO will trying to deploy two completely
separate instances of the cinder-volume service, but the two deployments
will step all over each other. There has been a long standing goal of
enhancing tripleo so that it can deploy multiple instances of a cinder
backend, but it's a complex task that will require non-trivial changes to


> št 11. 7. 2019 o 14:35 Emilien Macchi <emilien at redhat.com> napísal(a):
>> On Thu, Jul 11, 2019 at 7:32 AM Tomáš Bredár <tomas.bredar at gmail.com>
>> wrote:
>>> Hi community,
>>> I'm trying to define multiple NetApp storage backends via Tripleo
>>> installer.
>>> According to [1] the puppet manifest supports multiple backends.
>>> The current templates [2] [3] support only single backend.
>>> Does anyone know how to define multiple netapp backends in the
>>> tripleo-heat environment files / templates?
>> We don't support that via the templates that you linked, however if you
>> follow this manual you should be able to configure multiple NetApp backends:
>> https://docs.openstack.org/tripleo-docs/latest/install/advanced_deployment/cinder_custom_backend.html
>> Let us know how it worked!
>> --
>> Emilien Macchi
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