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Hello Kevin,

I've added some pictures that illustrates how it works with HW switch and
with VMs on devstack.


On Wed, Nov 25, 2015 at 10:53 PM, Kevin Benton <blak111 at gmail.com> wrote:

> This is cool. I didn't know you were working on an OVS driver for testing
> in CI as well. :)
>
> Does this work by getting the port wired into OVS so the agent recognizes
> it like a regular port so it can be put into VXLAN/VLAN or whatever the
> node is configured with? From what I can tell it looks like it's on a
> completely different bridge so they wouldn't have connectivity to the rest
> of the network.
>
> Driver works with VLAN at the moment, I don't see any reason why it
wouldn't work with VXLAN.
Ironic VMs are created on devstack by [0]. They are not registered in
Nova/Neutron so neutron-ovs-agent doesn't know anything about them.
In single node devstack you can't launch regular nova VM instances since
compute_driver=ironic doesn't allow this. They would have connectivity to
rest of network via 'br-int'.

I have some POC code[1] for 'baremetal' support directly in the OVS agent
> so ports get treated just like VM ports. However, it requires upstream
> changes so if yours accomplishes the same thing without any upstream
> changes, that will be the best way to go.
>
>
In real setup neutron will plug baremetal server to specific network via
ML2 driver.
We should keep as much closer to real ironic use-case scenario in testing
model. That is why we should have ML2 that allows us to interact with OVS.


> Perhaps we can merge your approach (config via ssh) with mine (getting the
> 'baremetal' ports wired up for real connectivity) so we don't need upstream
> changes.
>
> 1. https://review.openstack.org/#/c/249265/
>
> Cheers,
> Kevin Benton
>
> On Wed, Nov 25, 2015 at 7:27 AM, Vasyl Saienko <vsaienko at mirantis.com>
> wrote:
>
>> Hello Community,
>>
>> As you know Ironic/Neutron integration is planned in Mitaka. And at the
>> moment we don't have any CI that will test it. Unfortunately we can't test
>> Ironic/Neutron integration on HW as we don't have it.
>> So probably the best way is to develop ML2 driver that will work with OVS.
>>
>> At the moment we have a PoC [1] of ML2 driver that works with Cisco and
>> OVS on linux.
>> Also we have some patches to devstack that allows to try Ironic/Neutron
>> integration on VM and real HW. And quick guide how to test it locally [0]
>>
>> https://review.openstack.org/#/c/247513/
>> https://review.openstack.org/#/c/248048/
>> https://review.openstack.org/#/c/249717/
>> https://review.openstack.org/#/c/248074/
>>
>> I'm interested in Neutron/Ironic integration. It would be great if we
>> have it in Mitaka.
>> I'm asking Community to check [0] and [1] and share your thoughts.
>>
>>  Also I would like to request a repo on openstack.org for [1]
>>
>>
>> [0]
>> https://github.com/jumpojoy/ironic-neutron/blob/master/devstack/examples/ironic-neutron-vm.md
>> [1] https://github.com/jumpojoy/generic_switch
>>
>> --
>> Sincerely
>> Vasyl Saienko
>>
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>>
>
>
> --
> Kevin Benton
>
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>
[0]
https://github.com/openstack-dev/devstack/blob/master/tools/ironic/scripts/create-node
[1] https://review.openstack.org/#/c/249717

--
Sincerely
Vasyl Saienko
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