[Openstack] Instance IP assignment problem

Emilien Macchi emilien.openstack at gmail.com
Thu May 3 08:48:43 UTC 2012


All seems alright but not working yet.


http://paste.openstack.org/show/14791/



I have executed on both servers :

ovs-vsctl add-port br-int eth1


Need I do something else ?

How the DHCP is working in this case ?






Le jeudi 03 mai 2012 à 09:29 +0100, Bilel Msekni a écrit :
> Then the problem isn't in the instance but in the nova-network
> service , please check if it is working well 
> 
> as well as give us the output log when you attempt to create a new
> instance.
> 
> 
> 
> 
> 
> ______________________________________________________________________
> Subject: RE: [Openstack] Instance IP assignment problem
> From: emilien.openstack at gmail.com
> To: skible at hotmail.fr
> CC: salmanmk at live.com; openstack at lists.launchpad.net
> Date: Thu, 3 May 2012 10:21:37 +0200
> 
> Fixed IP
> 
> 
> 
> Le jeudi 03 mai 2012 à 09:15 +0100, Bilel Msekni a écrit : 
> 
>         Fixed IP or Floating IP ?
>         
>         
>         
>         ______________________________________________________________
>         
>         From: emilien.openstack at gmail.com
>         To: salmanmk at live.com
>         Date: Thu, 3 May 2012 09:55:31 +0200
>         CC: openstack at lists.launchpad.net
>         Subject: Re: [Openstack] Instance IP assignment problem
>         
>         Hi,
>         
>         
>         As I told you, I have also a problem for instance IP
>         assignement.
>         
>         
>         My architecture :
>         
>         I use Quantum with OVS plugin on 2 servers Essex-1 & Essex-2.
>         Essex-1 runs all services and Essex-2 runs OVS, Quantum-agent
>         & nova-compute only.
>         
>         You can see more details here.
>         
>         My configurations files are here and in my documentation.
>         
>         
>         
>         Problem Description :
>         
>         When an instance is created in ESSEX-1, all is working
>         (network).
>         
>         But when the VM is started on ESSEX-2, it does not get an IP
>         address. (log file)
>         
>         I'm sure the problem comes from OVS connection with ESSEX-1.
>         
>         
>         Do I need to configure something like a trunk or a tunnel
>         between Essex-1 & Essex-2 ?
>         
>         I miss something in my configuration, if you have any idea...
>         
>         
>         Regards
>         
>         
>         Emilien
>         
>         
>         Le mardi 01 mai 2012 à 14:35 -0500, Salman Malik a écrit : 
>         
>                 It may help if you can share the log of your launched
>                 instance as well. There is a possibility that we both
>                 are having the same issue. 
>                 Netstack developers can give a definitive answer to
>                 this, but it would be interesting to learn what goes
>                 wrong with a launched instance.
>                 
>                 Salman
>                 
>                 
>                 
>                 
>                 ______________________________________________________
>                 
>                 
>                 Subject: RE: [Openstack] Instance IP assignment
>                 problem
>                 From: emilien.openstack at gmail.com
>                 To: salmanmk at live.com
>                 CC: jorge.delacruz at stackops.com;
>                 openstack at lists.launchpad.net
>                 Date: Tue, 1 May 2012 21:26:26 +0200
>                 
>                 Le mardi 01 mai 2012 à 14:22 -0500, Salman Malik a
>                 écrit : 
>                 
>                         Regarding L3 gateway, I believe its not
>                         necessary to have one (as the VM hasn't
>                         obtained an IP right now, so it can't talk to
>                         anything outside its net), but I am not sure.
>                         Regarding your problem, do you see any DHCP
>                         responses from the DHCP server ? I am asking
>                         this because I was having a similar problem
>                         earlier where I was getting assigned an IP
>                         address no in my desired fixed_network and I
>                         believe that was cause by another interfering
>                         DHCP server that was replying to discover
>                         messages before the nova-network could. 
>                         
>                 
>                 Here my nova.conf and I don't have any interfering
>                 DHCP server :
>                 
>                 https://github.com/EmilienM/doc-openstack/blob/master/Configuration%20Files/Essex-1/nova.conf
>                 
>                 
>                 Thanks
>                 
>                 
>                         Salman
>                         
>                         
>                         
>                         
>                         ______________________________________________
>                         
>                         
>                         
>                         Subject: RE: [Openstack] Instance IP
>                         assignment problem
>                         From: emilien.openstack at gmail.com
>                         To: salmanmk at live.com
>                         CC: jorge.delacruz at stackops.com;
>                         openstack at lists.launchpad.net
>                         Date: Tue, 1 May 2012 21:06:01 +0200
>                         
>                         Hi Salman,
>                         
>                         
>                         I'm thinking about a networking issue. Where
>                         is your L3 gateway in this architecture ?
>                         Maybe do you need an ip helper tool to
>                         redirect DHCP broadcast ?
>                         
>                         
>                         What do you think about my problem (follow up
>                         to my last e-mail) ?
>                         
>                         
>                         Thanks
>                         
>                         
>                         Emilien
>                         
>                         Le mardi 01 mai 2012 à 14:00 -0500, Salman
>                         Malik a écrit : 
>                         
>                                 Hi,
>                                 
>                                 Here is the error log:
>                                 http://pastebin.com/KrNZDrvD
>                                 and nova.conf:
>                                 http://pastebin.com/Fvd6dSZs
>                                 
>                                 Emilien, I am trying to get an
>                                 understanding of how different Quantum
>                                 plugins work with OpenStack. Ryu
>                                 plugin is particularly interesting as
>                                 it uses an OpenFlow controller to
>                                 configure Vswitches.
>                                 
>                                 The problem I am faced with is  (I
>                                 think ) that I already have a private
>                                 network and Quantum should assign IP
>                                 addresses to instances using DHCP. But
>                                 instances send out discover message on
>                                 laucnh but never find a DHCP server
>                                 (although there are 2 dnsmasqs
>                                 running). 
>                                 
>                                 Any ideas?
>                                 
>                                 Thanks,
>                                 Salman
>                                 
>                                 
>                                 
>                                 
>                                 ______________________________________
>                                 
>                                 
>                                 
>                                 
>                                 Date: Tue, 1 May 2012 20:43:44 +0200
>                                 Subject: Re: [Openstack] Instance IP
>                                 assignment problem
>                                 From: jorge.delacruz at stackops.com
>                                 To: emilien.openstack at gmail.com
>                                 CC: openstack at lists.launchpad.net;
>                                 salmanmk at live.com
>                                 
>                                 Hi Emilien and Salman,
>                                 Please, could you upload all the
>                                 files, errors and conf in pastebin or
>                                 something like that? 
>                                 I have troubles to open in phone :)
>                                 Thank you
>                                 El 01/05/2012 20:39, "Emilien Macchi"
>                                 <emilien.openstack at gmail.com>
>                                 escribió:
>                                 
>                                         Hi,
>                                         
>                                         
>                                         I have a similar problem when
>                                         I create a network per
>                                         project_id with Quantum.
>                                         
>                                         
>                                         My VMs don't get IP and I
>                                         can't understand why today.
>                                         
>                                         But when I create a private
>                                         network for all projects, VMs
>                                         get an IP and all is working
>                                         well.
>                                         Do you have the same problem ?
>                                         
>                                         
>                                         Salman, I'm interesting about
>                                         your nova.conf. I can see you
>                                         are using Ryu ?
>                                         Can you tell me more about
>                                         your "use case" or
>                                         architecture ?
>                                         
>                                         
>                                         Thanks
>                                         
>                                         
>                                         Le mardi 01 mai 2012 à 12:28
>                                         -0500, Salman Malik a écrit : 
>                                         
>                                                 Hi Jorge,
>                                                 
>                                                 Thanks for looking
>                                                 into the post.
>                                                 I have made changes to
>                                                 the nova.conf file so
>                                                 that I only use
>                                                 10.0.0.x network (but
>                                                 the problem is still
>                                                 the same). For this
>                                                 configuration, I
>                                                 assume that it will
>                                                 give out IPs to
>                                                 instances starting
>                                                 from 10.0.0.11. And
>                                                 just to inform you, my
>                                                 eth1 is configured to
>                                                 be 10.0.0.10 (which is
>                                                 a VM itself, and eth1
>                                                 is configured as a
>                                                 host-only network with
>                                                 no DHCP) and this
>                                                 interface is plugged
>                                                 in the integration
>                                                 bridge used by quantum
>                                                 plugins.
>                                                 
>                                                 Thanks,
>                                                 Salman
>                                                 
>                                                 PS: Error log of a
>                                                 launched instance is
>                                                 also attached.
>                                                 
>                                                 
>                                                 
>                                                 
>                                                 ______________________
>                                                 
>                                                 
>                                                 
>                                                 
>                                                 
>                                                 Date: Tue, 1 May 2012
>                                                 19:03:49 +0200
>                                                 Subject: Re:
>                                                 [Openstack] Instance
>                                                 IP assignment problem
>                                                 From:
>                                                 jorge.delacruz at stackops.com
>                                                 To: salmanmk at live.com
>                                                 CC:
>                                                 openstack at lists.launchpad.net
>                                                 
>                                                 Im not really sure but
>                                                 you are using range
>                                                 for your environment
>                                                 10.0.3.x and 10.0.0.x
>                                                 for fixed.
>                                                 Can you attach a nova
>                                                 network conf?
>                                                 Regards
>                                                 El 01/05/2012 18:56,
>                                                 "Salman Malik"
>                                                 <salmanmk at live.com>
>                                                 escribió:
>                                                 
>                                                         Hi Guys,
>                                                         
>                                                         Can anyone
>                                                         provide any
>                                                         insight to the
>                                                         following
>                                                         question:
>                                                         https://answers.launchpad.net/nova/+question/195439
>                                                         
>                                                         Thanks,
>                                                         Salman
>                                                         
>                                                         
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