[Openstack] Need help with adding instance with fixed ip in external network with out using private and floating ip.

Geo Varghese gvarghese at aqorn.com
Sat Oct 31 06:43:07 UTC 2015


Hi Team,

I need help with adding instance with fixed ip in external network with out
using private and floating ip.

I have tested it using following steps

1) Created a new nic - eth4 for new external network(192.168.122.0/24) in
controller.

2) Created a bridge - br-ex2 and added eth4 as port to bridge.

3) Mapped this bridge in ml2 conf and restarted l3 agent and neutron plugin

4) Then added shared external network Ext2 in openstack. Then added subnet
as  192.168.122.0/24

5) Added it to the router- router2 as interface with a IP - 192.168.122.99.
Network topology shows the interface is active with this IP. Ping to this
ip is also working from other machines.

Later created VM in this network, but it failed with following error in
nova-compute log.

=========================================================
Unable to mount image
/var/lib/nova/instances/903a6630-941c-4fd0-948f-85522fa20979/disk with
error libguestfs installed but not usable (/usr/bin/supermin-helper exited
with error status 1.
==========================================================

Please check attached screen shot of network topology.

Please help me with your inputs.

-- 
--
Regards,
Geo Varghese
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