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Hey All!

I wanted to follow up on this. We've managed successfully migrated Icehouse with per tenant networks (non overlapping, obviously) and L3 services from nova-networking to neutron in the lab. I'm working on the automation bits, but once that is done we'll start migrating real workloads.

I forked Sam's stuff and modified it to work in icehouse with tenants nets: https://github.com/kevinbringard/novanet2neutron/tree/icehouse. I need to update the README to succinctly reflect the steps, but the code is there (I'm going to work on the README today).

If this is something folks are interested in I proposed a talk to go over the process and our various use cases in Austin: https://www.openstack.org/summit/austin-2016/vote-for-speakers/presentation/7045

-- Kevin



On 12/9/15, 12:49 PM, "Kevin Bringard (kevinbri)" <kevinbri at cisco.com> wrote:

>It's worth pointing out, it looks like this only works in Kilo+, as it's written. Sam pointed out earlier that this was what they'd run it on, but I verified it won't work on earlier versions because, specifically, in the migrate-secgroups.py it inserts into the default_security_group table, which was introduced in Kilo.
>
>I'm working on modifying it. If I manage to get it working properly I'll commit my changes to my fork and send it out.
>
>-- Kevin
>
>
>
>On 12/9/15, 10:00 AM, "Edgar Magana" <edgar.magana at workday.com> wrote:
>
>>I did not but more advanced could mean a lot of things for Neutron. There are so many possible scenarios that expecting to have a “script” to cover all of them is a whole new project. Not sure we want to explore than. In the past we were recommending to
>> make the migration in multiple steps, maybe we could use this as a good step 0.
>>
>>
>>Edgar
>>
>>
>>
>>
>>
>>From: "Kris G. Lindgren"
>>Date: Wednesday, December 9, 2015 at 8:57 AM
>>To: Edgar Magana, Matt Kassawara, "Kevin Bringard (kevinbri)"
>>Cc: OpenStack Operators
>>Subject: Re: [Openstack-operators] Nova-network -> Neutron Migration
>>
>>
>>
>>Doesn't this script only solve the case of going from flatdhcp networks in nova-network to same dchp/provider networks in neutron.  Did anyone test to see if it also works for doing more advanced nova-network configs?
>>
>>
>>___________________________________________________________________
>>Kris Lindgren
>>Senior Linux Systems Engineer
>>GoDaddy
>>
>>
>>
>>
>>
>>
>>From: Edgar Magana <edgar.magana at workday.com>
>>Date: Wednesday, December 9, 2015 at 9:54 AM
>>To: Matt Kassawara <mkassawara at gmail.com>, "Kevin Bringard (kevinbri)" <kevinbri at cisco.com>
>>Cc: OpenStack Operators <openstack-operators at lists.openstack.org>
>>Subject: Re: [Openstack-operators] Nova-network -> Neutron Migration
>>
>>
>>
>>Yes! We should but with a huge caveat that is not not supported officially by the OpenStack community. At least the author wants to make a move with the Neutron team to make it part of the tree.
>>
>>
>>Edgar 
>>
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>>
>>
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>>From: Matt Kassawara
>>Date: Wednesday, December 9, 2015 at 8:52 AM
>>To: "Kevin Bringard (kevinbri)"
>>Cc: Edgar Magana, Tom Fifield, OpenStack Operators
>>Subject: Re: [Openstack-operators] Nova-network -> Neutron Migration
>>
>>
>>
>>Anyone think we should make this script a bit more "official" ... perhaps in the networking guide?
>>
>>On Wed, Dec 9, 2015 at 9:01 AM, Kevin Bringard (kevinbri)
>><kevinbri at cisco.com> wrote:
>>
>>Thanks, Tom, Sam, and Edgar, that's really good info. If nothing else it'll give me a good blueprint for what to look for and where to start.
>>
>>
>>
>>On 12/8/15, 10:37 PM, "Edgar Magana" <edgar.magana at workday.com> wrote:
>>
>>>Awesome code! I just did a small testbed test and it worked nicely!
>>>
>>>Edgar
>>>
>>>
>>>
>>>
>>>On 12/8/15, 7:16 PM, "Tom Fifield" <tom at openstack.org> wrote:
>>>
>>>>On 09/12/15 06:32, Kevin Bringard (kevinbri) wrote:
>>>>> Hey fellow oppers!
>>>>>
>>>>> I was wondering if anyone has any experience doing a migration from nova-network to neutron. We're looking at an in place swap, on an Icehouse deployment. I don't have parallel
>>>>>
>>>>> I came across a couple of things in my search:
>>>>>
>>>>> 
>>https://wiki.openstack.org/wiki/Neutron/MigrationFromNovaNetwork/HowTo <https://wiki.openstack.org/wiki/Neutron/MigrationFromNovaNetwork/HowTo>
>>>>> 
>>http://docs.openstack.org/networking-guide/migration_nova_network_to_neutron.html <http://docs.openstack.org/networking-guide/migration_nova_network_to_neutron.html>
>>>>>
>>>>> But neither of them have much in the way of details.
>>>>>
>>>>> Looking to disrupt as little as possible, but of course with something like this there's going to be an interruption.
>>>>>
>>>>> If anyone has any experience, pointers, or thoughts I'd love to hear about it.
>>>>>
>>>>> Thanks!
>>>>>
>>>>> -- Kevin
>>>>
>>>>NeCTAR used this script (https://github.com/NeCTAR-RC/novanet2neutron )
>>>>with success to do a live nova-net to neutron using Juno.
>>>>
>>>>
>>>>
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