Open Stack

Hey Ruslanas,

You are be able to customize the networks to all use the same CIDR and set
different IP allocation pools from within the it. Have a look at this Create
Network Environment File
<https://tripleo-docs.readthedocs.io/en/latest/advanced_deployment/network_isolation.html#create-network-environment-file>
for reference of the parameters you want to change.

That has the disadvantage of allocating many IPs from the same subnet when,
in theory, you should technically be able to use one. I am not sure if/how
that is possible in TripleO. The ask we hear from most of our operators is
usually to allow more separation of networks (not less). I hope this helps
point you in the right direction!

Sincerely,
    Luke Short

On Sun, May 3, 2020 at 6:21 PM Ruslanas Gžibovskis <ruslanas at lpic.lt> wrote:

> Hi all,
>
> I am doing some testing and will do some deployment on some remote hosts.
>
> Remote hosts will use provider network only specific for each compute.
>
> I was thinking, do I really need all the External, InternalAPI, Storage,
> StorageManagemnt, Tenant networks provided to all of the nodes? Maybe I
> could use a Provision network for all of that, and make swift/glance copy
> on all computes to provide local images.
>
> I understand, if I do not have tenant network, all VM's in same project
> but in different sites, will not see each other, but it is ok at
> the moment.
>
> Thank you for your help
>
> --
> Ruslanas Gžibovskis
> +370 6030 7030
>
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