[Openstack-operators] Nova-network -> Neutron Migration

Kevin Bringard (kevinbri) kevinbri at cisco.com
Wed Dec 9 19:49:35 UTC 2015


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.
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>Edgar
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>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
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>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?
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>___________________________________________________________________
>Kris Lindgren
>Senior Linux Systems Engineer
>GoDaddy
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>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
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>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.
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>Edgar 
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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
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>Anyone think we should make this script a bit more "official" ... perhaps in the networking guide?
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>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.
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>On 12/8/15, 10:37 PM, "Edgar Magana" <edgar.magana at workday.com> wrote:
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>>Awesome code! I just did a small testbed test and it worked nicely!
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>>Edgar
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>>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>
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>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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