[Openstack] nova-network no ip for vm

Jay S Bryant jsbryant at us.ibm.com
Thu Apr 25 16:59:10 UTC 2013


Arindam,

You need to make sure that nova-network is not started and that quantum is 
started on your control node.  Also ensure that your /etc/nova/nova.conf 
is configured to use quantum and a plugin.

For my setup I have:

network_api_class = nova.network.quantumv2.api.API
quantum_admin_username = <username>
quantum_admin_password = <password>
quantum_admin_auth_url = http://localhost:5000/v2.0/
quantum_auth_strategy = keystone
quantum_admin_tenant_name = service
quantum_url = http://localhost:9696/
libvirt_vif_driver = 
nova.virt.libvirt.vif.LibvirtOpenVswitchVirtualPortDriver
linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
linuxnet_ovs_integration_bridge = br-int
quantum_ovs_bridge = br-int

In the default section of my nova.conf.  Obviously those will vary 
depending on your hypervisor and which plugin you are using.



Jay S. Bryant
Linux Developer - 
    OpenStack Enterprise Edition
                   
Department 7YLA, Building 015-2, Office E125, Rochester, MN
Telephone: (507) 253-4270, FAX (507) 253-6410
TIE Line: 553-4270
E-Mail:  jsbryant at us.ibm.com
--------------------------------------------------------------------
 All the world's a stage and most of us are desperately unrehearsed.
                   -- Sean O'Casey
--------------------------------------------------------------------



From:   Arindam Choudhury <arindam at live.com>
To:     Jay S Bryant/Rochester/IBM at IBMUS, openstack 
<openstack at lists.launchpad.net>, 
Date:   04/25/2013 11:42 AM
Subject:        RE: [Openstack] nova-network no ip for vm



Hi,
Actually the problem was solved by installing nbd module. Now I have one 
weird problem. I have mistakenly installed nova-network in compute node 
and it had became the default one. Can you tell be how to fix it?

To: arindam at live.com
Subject: Re: [Openstack] nova-network no ip for vm
From: jsbryant at us.ibm.com
Date: Thu, 25 Apr 2013 11:32:18 -0500

Arindam, 

I realized last night that the iptables command I sent didn't have the 
right network interface specification for your environment.   

It should have been:  iptables -I INPUT -i <interface on control node to 
the compute nodes> -p udp --dport 67:68 --sport 67:68 -j ACCEPT . 

It looks like that might be vnet0?  Sorry, I don't use iptables much and 
just stumbled upon the fix for our environment out of luck.  :-)



Jay S. Bryant
Linux Developer - 
   OpenStack Enterprise Edition
                  
Department 7YLA, Building 015-2, Office E125, Rochester, MN
Telephone: (507) 253-4270, FAX (507) 253-6410
TIE Line: 553-4270
E-Mail:  jsbryant at us.ibm.com
--------------------------------------------------------------------
All the world's a stage and most of us are desperately unrehearsed.
                  -- Sean O'Casey
-------------------------------------------------------------------- 



From:        Arindam Choudhury <arindam at live.com> 
To:        Staicu Gabriel <gabriel_staicu at yahoo.com>, openstack 
<openstack at lists.launchpad.net>, 
Date:        04/25/2013 04:19 AM 
Subject:        Re: [Openstack] nova-network no ip for vm 
Sent by:        "Openstack" 
<openstack-bounces+jsbryant=us.ibm.com at lists.launchpad.net> 



Hi,

Thanks for your reply.

Here is the logs from /var/log/messages:

Apr 25 11:14:40 aopcso1 kernel: [589256.953753] device vnet0 entered 
promiscuous mode
Apr 25 11:14:40 aopcso1 kernel: [589257.014414] br100: port 2(vnet0) 
entering forwarding state
Apr 25 11:14:40 aopcso1 kernel: [589257.014430] br100: port 2(vnet0) 
entering forwarding state
Apr 25 11:14:55 aopcso1 kernel: [589272.014705] br100: port 2(vnet0) 
entering forwarding state

and the logs from /var/log/syslog:

Apr 25 11:14:07 aopcso1 dnsmasq[12485]: direcciónes /etc/hosts - 23 leídas
Apr 25 11:14:07 aopcso1 dnsmasq-dhcp[12485]: read 
/var/lib/nova/networks/nova-br100.conf
Apr 25 11:14:39 aopcso1 NetworkManager[3980]:    SCPlugin-Ifupdown: 
devices added (path: /sys/devices/virtual/net/vnet0, iface: vnet0)
Apr 25 11:14:39 aopcso1 NetworkManager[3980]:    SCPlugin-Ifupdown: device 
added (path: /sys/devices/virtual/net/vnet0, iface: vnet0): no ifupdown 
configuration found.
Apr 25 11:14:39 aopcso1 NetworkManager[3980]: <warn> 
/sys/devices/virtual/net/vnet0: couldn't determine device driver; 
ignoring...
Apr 25 11:14:40 aopcso1 kernel: [589256.953753] device vnet0 entered 
promiscuous mode
Apr 25 11:14:40 aopcso1 kernel: [589257.014414] br100: port 2(vnet0) 
entering forwarding state
Apr 25 11:14:40 aopcso1 kernel: [589257.014430] br100: port 2(vnet0) 
entering forwarding state
Apr 25 11:14:44 aopcso1 ntpd[4796]: Listen normally on 67 vnet0 
fe80::fc16:3eff:fe8a:f597 UDP 123
Apr 25 11:14:44 aopcso1 ntpd[4796]: peers refreshed
Apr 25 11:14:50 aopcso1 kernel: [589267.164541] vnet0: no IPv6 routers 
present
Apr 25 11:14:55 aopcso1 kernel: [589272.014705] br100: port 2(vnet0) 
entering forwarding state




Date: Thu, 25 Apr 2013 01:53:02 -0700
From: gabriel_staicu at yahoo.com
Subject: Re: [Openstack] nova-network no ip for vm
To: arindam at live.com; openstack at lists.launchpad.net

Hi, 

A place to look for eventually error messages is also /var/log/messages. 
Look for dnsmasq related message and post them here. 

Regards, 
Gabriel 

From: Arindam Choudhury <arindam at live.com>
To: openstack <openstack at lists.launchpad.net> 
Sent: Thursday, April 25, 2013 11:10 AM
Subject: [Openstack] nova-network no ip for vm 

Hi,

I am really stuck, any help will be highly appreciated.

I installed a two node openstack deployment on debian wheezy:

# nova-manage service list
Binary           Host                                 Zone Status State 
Updated_At
nova-network     aopcach                              internal enabled :-) 
  2013-04-25 08:05:18
nova-cert        aopcach                              internal enabled :-) 
  2013-04-25 08:05:18
nova-conductor   aopcach                              internal enabled :-) 
  2013-04-25 08:05:18
nova-consoleauth aopcach                              internal enabled :-) 
  2013-04-25 08:05:18
nova-scheduler   aopcach                              internal enabled :-) 
  2013-04-25 08:05:18
nova-network     aopcso1                              internal enabled :-) 
  2013-04-25 08:05:15
nova-compute     aopcso1                              nova enabled    :-)  
2013-04-25 08:05:15

# nova-manage network list
id       IPv4                  IPv6               start address      DNS1  
            DNS2               VlanID             project            uuid  
 
1        192.168.100.0/24      None               192.168.100.2 8.8.4.4    
  None               None               None 
5f6a8ef4-7003-48f8-8922-5303f37d0ce8

But when boot up a vm(the cirros from the tutorial), it dont get any ip.

Starting network...
udhcpc (v1.18.5) started
Sending discover...
Sending discover...
Sending discover...
No lease, failing
WARN: /etc/rc3.d/S40network failed

### ifconfig a
eth0      Link encap:Ethernet  HWaddr FA:16:3E:CD:3B:97 
         inet6 addr: fe80::f816:3eff:fecd:3b97/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:1361 errors:0 dropped:6 overruns:0 frame:0
         TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000 
         RX bytes:159974 (156.2 KiB)  TX bytes:902 (902.0 B)

lo        Link encap:Local Loopback 
         inet addr:127.0.0.1  Mask:255.0.0.0
         inet6 addr: ::1/128 Scope:Host
         UP LOOPBACK RUNNING  MTU:16436  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:0 
         RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

In controller or compute node the nova-network.log does not generate any 
logging of events.

on the horizon I dont have any network listing.




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