Tomáš Bredár tomas.bredar at gmail.com
Mon Jul 15 11:10:49 UTC 2019

Hi Alan!
Thanks for the pointers. For now I'm going with a single backend with two
NFS shares, so I'll use the tripleo templates for netapp.
For the future, could you point me to the right template / puppet-cinder
code which can create multiple nfs share files for me? Or should I create
my own puppet manifest?

Thanks again.


pi 12. 7. 2019 o 16:11 Alan Bishop <abishop at redhat.com> napísal(a):

> 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
> tripleo.
> Alan
> Tomas
>> 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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