Dmitrii,

Many thanks for your insight here.

~James

On Wed, Jul 26, 2017 at 11:34 PM, Patrizio Bassi <patrizio.ba...@gmail.com>
wrote:

>
> 2017-07-26 9:17 GMT+02:00 Mark Shuttleworth <m...@ubuntu.com>:
>
>> On 26/07/17 07:14, Patrizio Bassi wrote:
>>
>> Deploying hadoop via juju in an openstack tenant requires a separate
>> model (as far as i could design it).
>> So we may use the new juju 2.2 cross model relation to relate the hadoop
>> charms to the openstack ceph units.
>>
>> does it sound feasible?
>>
>>
>> Yes, that sounds feasible. I'm not sure how Ceph identity / permissions
>> will work in that case (i.e. who has access to which data, how Ceph will
>> correlate tenants in OpenStack both through Cinder and through a direct
>> relationship). In principle though, as long as the networking is arranged
>> so that IP addresses and routes enable traffic to flow between your tenant
>> network and your Ceph network, and as long as both sets of machines can see
>> the Juju controller, they can exchange messages and traffic.
>>
>> Mark
>>
>
>
> Dear Mark,
>
> On relation join event we may create a new ceph storage pool dedicated to
> the incoming unit (i.e. prefixed with the controller/model/unit/charm name
> by default). Can cephx proto
>
> Regarding networking openstack neutron by default block traffic from
> tenant VM to the admin network which it required to access the same ceph
> mon/osd. It requires changing neutron or implement an external nat for
> instance (our solution at the moment)
>
> Patrizio
>
>
>
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