[Openstack] assign fix ip to instance

Jason Smith jason at smithss.org
Wed Dec 16 21:42:30 UTC 2015


Glad it helped

Thanks,
-js

-- Typo’s courtesy of Apple --

On December 16, 2015 at 1:19:59 PM, Satish Patel (satish.txt at gmail.com) wrote:

Thanks jason!!  

On Wed, Dec 16, 2015 at 11:57 AM, Jason Smith <jason at smithss.org> wrote:  
> 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)  
> 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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