Open Stack

thanks it works for me

On Fri, Oct 21, 2022 at 1:24 PM Satish Patel <satish.txt at gmail.com> wrote:

> Here is the doc to deploy kolla using a single network interface port.
> https://www.keepcalmandrouteon.com/post/kolla-os-part-1/
>
> On Thu, Oct 20, 2022 at 4:46 AM Sean Mooney <smooney at redhat.com> wrote:
>
>> I have not been following this too cloesly and sorry to top post but its
>> possibel to deploy multi node openstack using a singel interface.
>> i often do that with devstack and it shoudl be possibel to do with kolla.
>>
>> first if you do not need vlan/flat tenant networks and and geneve/vxlan
>> with ml2/ovs or ml2/ovn is sufficent then the tunell endpoint ip can just be
>> the manamgnet interface. when im deploying wiht devstack i just create a
>> dumy interfaces and use that for neutorn
>> so you shoudl be able to do that for kolla-ansible too just have a
>> playbook that will create a dumy interface on all host and set that as the
>> neutron_interface.
>>
>> in kolla all other interface are shared by defautl so its only the
>> nuetorn_interface for the br-ex that need to be managed.
>> this approch reqired yuo to asign the gateway ip for the external network
>> to one of the contolers and configre that host in your router.
>>
>> the better approch whihc allows provider networks to work and avoids the
>> need to asisng the gateway ip in a hacky way is use macvlan interfaces
>> i dont thinki have  an example of this form my home cloud any more since
>> i have redpeloyed it but i previoulsy used to create macvlan sub interfaces
>>
>> to do this by hand you would do somehting like this
>>
>> sudo ip link add api link eth0 type macvlan mode bridge
>> sudo ip link add ovs link eth0 type macvlan mode bridge
>> sudo ip link add storage link eth0 type macvlan mode bridge
>> sudo ifconfig api up
>> sudo ifconfig ovs up
>> sudo ifconfig storage up
>>
>>
>> you can wrap that up into a systemd service file and have it run before
>> the docker service.
>> if your on ubuntu netplan does not support macvlans currently but you can
>> do it the tradtional way or wiht systemd networkd
>>
>> Macvlan allows a single physical interface to have multiple mac and ip
>> addresses.
>> you can also do the same with a linux bridge but that is less then ideal
>> in terms of performance.
>> if your nic support sriov another good way to partion then nice is to use
>> a VF
>>
>> in this case you just put a trivial udev rule to allocate them or use
>> netplan
>> https://netplan.io/examples its the final example.
>>
>>
>> macvlan works if you dont have hardware supprot for sriov and sriov is a
>> good option otherwise
>>
>> On Thu, 2022-10-20 at 11:06 +0900, Bernd Bausch wrote:
>> > 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
>> >
>>
>>
>>
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