[Openstack] assign fix ip to instance

Jason Smith jason at smithss.org
Wed Dec 16 16:57:18 UTC 2015


Hello,

When booting an instance you can assign the IP with v4-fixed-ip=<IP ADDRESS>  

Below is an example.  

$ nova boot --nic net-id=3ff9b903-e921-4752-a26f-cba8f1433992,v4-fixed-ip=10.0.0.30 \ --image centos-6-cloud --key-name lars --flavor m1.small test0  
Thanks,
-js

-- Typo’s courtesy of Apple --  

On December 16, 2015 at 8:50:28 AM, satish patel (satish.txt at gmail.com(mailto:satish.txt at gmail.com)) wrote:

>  
> Hello,
>  
> does it possible assign IP when build VM? We have flat network setup
> with DHCP=false, but i have created start/end IP range so openstack
> assign IP when VM start.
>  
> Yesterday one of my application crash and i was planing to rebuild VM
> with new OS, but problem is how do i assign existing IP? that IP is
> configured in all firewall,DNS, SSH key list etc.. it is total mess if
> i change IP :(
>  
> can i grab old IP for that instance or just reserve that IP for that VM?
>  
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