Open Stack

Hi,

we don't use kolla but our cloud runs with only one interface  
(actually two, it's a bond) on control and compute nodes. We use two  
different VLANs for openvswitch and the "management" network on that  
bond, and it works perfectly fine. I just wouldn't know how to handle  
that in kolla.

> See for example the (sadly, defunct) SUSE OpenStack cloud  
> https://documentation.suse.com/soc/9/html/suse-openstack-cloud-crowbar-all/cha-deploy-poc.html#sec-depl-poc-vlans.

Yeah, that made us sad, too.

Zitat von Bernd Bausch <berndbausch at gmail.com>:

> SInce you can easily have five to ten different networks in a cloud  
> installation, e.g. networks dedicated to object storage, provider  
> networks for Octavia, a network just for iSCSI etc, VLANs are (or  
> used to be?) a common solution. See for example the (sadly, defunct)  
> SUSE OpenStack cloud  
> https://documentation.suse.com/soc/9/html/suse-openstack-cloud-crowbar-all/cha-deploy-poc.html#sec-depl-poc-vlans.
>
> On 2022/10/20 8:50 AM, Clark Boylan wrote:
>> On Wed, Oct 19, 2022, at 4:44 PM, Michal Arbet wrote:
>>> Hmm,
>>>
>>> But I think there is a problem with vlan - you need to setup it in OVS,
>>> don't you ?
>> There was also a bridge and a veth pair involved:  
>> https://opendev.org/opendev/puppet-infracloud/src/commit/121afc07bdd277d8ba3ba70f1433d5e6a4a4b14e/manifests/veth.pp
>>
>> Possibly to deal with this? Like I said its been a long time and I  
>> don't remember the details. I just know it was possible to solve at  
>> least at the time. Linux gives you a whole suite of virtual network  
>> components that you can throw together to workaround physical  
>> limitations like this.
>>
>>> Michal Arbet
>>> Openstack Engineer
>>>
>>> Ultimum Technologies a.s.
>>> Na Poříčí 1047/26, 11000 Praha 1
>>> Czech Republic
>>>
>>> +420 604 228 897
>>> michal.arbet at ultimum.io
>>> _https://ultimum.io_
>>>
>>> LinkedIn <https://www.linkedin.com/company/ultimum-technologies> |
>>> Twitter <https://twitter.com/ultimumtech> | Facebook
>>> <https://www.facebook.com/ultimumtechnologies/timeline>
>>>
>>>
>>> st 19. 10. 2022 v 23:57 odesílatel Clark Boylan  
>>> <cboylan at sapwetik.org> napsal:
>>>> On Wed, Oct 19, 2022, at 9:40 AM, Michal Arbet wrote:
>>>>> Hi,
>>>>>
>>>>> If I am correct this is not possible currently, but I remember I was
>>>>> working on a solution, but unfortunately I stopped at some point
>>>>> because kolla upstream didn't want to maintain.
>>>>>
>>>>> In attachment you can find patches for kolla and kolla-ansible  
>>>>> and our idea.
>>>>>
>>>>> We added python script to kolla container and provide netplan style
>>>>> configuration by kolla-ansible ..so openvswitch starts and configured
>>>>> networking as it was set in configuration (if i remember ...it is quite
>>>>> long time....and of course it was not final version ...but if i
>>>>> remember it somehow worked).
>>>>>
>>>>> So, you can check it and maybe we can discuss this feature again :)
>>>>>
>>>>> Thanks,
>>>>> Kevko
>>>>>
>>>>>
>>>>> Michal Arbet
>>>>> Openstack Engineer
>>>>>
>>>>> Ultimum Technologies a.s.
>>>>> Na Poříčí 1047/26, 11000 Praha 1
>>>>> Czech Republic
>>>>>
>>>>> +420 604 228 897
>>>>> michal.arbet at ultimum.io
>>>>> _https://ultimum.io_
>>>>>
>>>>> LinkedIn <https://www.linkedin.com/company/ultimum-technologies> |
>>>>> Twitter <https://twitter.com/ultimumtech> | Facebook
>>>>> <https://www.facebook.com/ultimumtechnologies/timeline>
>>>>>
>>>>>
>>>>> po 17. 10. 2022 v 19:24 odesílatel Parsa Aminian
>>>>> <p.aminian.server at gmail.com> napsal:
>>>>>> Hello
>>>>>> I use kolla ansible wallaby version .
>>>>>> my compute node has only one port . is it possible to use this  
>>>>>> server ? as I know openstack compute need 2 port one for  
>>>>>> management and other for external user network . Im using  
>>>>>> provider_networks and it seems neutron_external_interface could  
>>>>>> not be the same as network_interface because openvswitch need  
>>>>>> to create br-ex bridge on separate port
>>>>>> is there any solution that i can config my compute with 1 port ?
>>>> A very long time ago the OpenStack Infra Team ran the  
>>>> "Infracloud". This OpenStack installation ran on donated hardware  
>>>> and the instances there only had a single network port as well.  
>>>> To workaround this we ended up using vlan specific subinterfaces  
>>>> on the node so that logically we were presenting more than one  
>>>> interface to the OpenStack installation.
>>>>
>>>> I don't remember all the details but the now retired  
>>>> opendev/puppet-infracloud repo may have some clues:  
>>>> https://opendev.org/opendev/puppet-infracloud/src/commit/121afc07bdd277d8ba3ba70f1433d5e6a4a4b14e
>>>>
>>>>> Attachments:
>>>>> * ovs_kolla
>>>>> * ovs_kolla_ansible