[openstack-dev] [openstack-ansible] network question and documentation

Fabrice Grelaud fabrice.grelaud at u-bordeaux.fr
Fri Feb 19 08:36:09 UTC 2016

Le 19/02/2016 00:31, Ian Cordasco a écrit :
> -----Original Message-----
> From: Fabrice Grelaud <fabrice.grelaud at u-bordeaux.fr>
> Reply: OpenStack Development Mailing List (not for usage questions) <openstack-dev at lists.openstack.org>
> Date: February 17, 2016 at 09:02:49
> To: openstack-dev at lists.openstack.org <openstack-dev at lists.openstack.org>
> Subject:  [openstack-dev] [openstack-ansible] network question and documentation
>> Hi,
>> after a first test architecture of openstack (juno then upgrade to kilo), installed  
>> from scratch, and because we use Ansible in our organization, we decided to deploy our  
>> next openstack generation architecture from the project openstack-ansible.
>> I studied your documentation (very good work and very appreciate, http://docs.openstack.org/developer/openstack-ansible/[kilo|liberty]/install-guide/index.html)  
>> and i will need some more clarification compared to network architecture.
>> I'm not sure to be on the good mailing-list because it 's dev oriented here, for all that,  
>> i fear my request to be embedded in the openstack overall list, because it's very specific  
>> to the architecture proposed by your project (bond0 (br-mngt, br-storage), bond1 (br-vxlan,  
>> br-vlan)).
>> I'm sorry about that if that is the case...
>> So, i would like to know if i'm going in the right direction.
>> We want to use both, existing vlan from our existing physical architecture inside openstack  
>> (vlan provider) and "private tenant network" with IP floating offer (from a flat network).  
>> My question is about switch configuration:
>> On Bond0:
>> the switch port connected to bond0 need to be configured as trunks with:
>> - the host management network (vlan untagged but can be tagged ?)
>> - container(mngt) network (vlan-container)
>> - storage network (vlan-storage)
>> On Bond1:
>> the switch port connected to bond1 need to be configured as trunks with:
>> - vxlan network (vlan-vxlan)
>> - vlan X (existing vlan in our existing network infra)
>> - vlan Y (existing vlan in our existing network infra)
>> Is that right ?
>> And do i have to define a new network (a new vlan, flat network) that offer floatting IP  
>> for private tenant (not using existing vlan X or Y)? Is that new vlan have to be connected  
>> to bond1 and/or bond0 ?
>> Is that host management network could play this role ?
>> Thank you to consider my request.
>> Regards
>> ps: otherwise, about the documentation, for great understanding and perhaps consistency  
>> In Github (https://github.com/openstack/openstack-ansible), in the file openstack_interface.cfg.example,  
>> you point out that for br-vxlan and br-storage, "only compute node have an IP on this bridge.  
>> When used by infra nodes, IPs exist in the containers and inet should be set to manual".  
>> I think it will be good (but i may be wrong ;-) ) that in chapter 3 of the "install guide: configuring  
>> the network on target host", you propose the /etc/network/interfaces for both controller  
>> node (br-vxlan, br-storage: manual without IP) and compute node (br-vxlan, br-storage:  
>> static with IP).
> Hi Fabrice,
> Has anyone responded to your questions yet?
> --  
> Ian Cordasco
Hi Ian,

alas ! Not at the moment...


Fabrice Grelaud
Université de Bordeaux

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