Open Stack

The dashboard makes the same API calls at the CLI clients, so it should be the same.

-James
 
:)=


On Tuesday, August 19, 2014 9:18 AM, Ahmed Ali (ahmeali) <ahmeali at cisco.com> wrote:
 




Hi Alex, sorry I did not catch this email earlier, sub-domain can be part of the post script or user-data file, hostname is based on the name you provide during nova boot or a prefixed uuid if more than instance are provisioned.   

you can use cloud-init and user data using APIs or “Post-Creation” script from horizon, .


 Examples for cloud-init and user-data:

http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/files/head:/doc/examples/

Look for cloud-config-boot-cmds.txt example, you can run any command to modify hostname

Cheers
Ahmed


From: Alex Leonhardt <aleonhardt.py at gmail.com>
Date: Sunday, August 17, 2014 at 2:09 AM
To: Ahmed Ali <ahmeali at cisco.com>
Cc: Abel Lopez <alopgeek at gmail.com>, openstack-operators <openstack-operators at lists.openstack.org>
Subject: Re: [Openstack-operators] how can I make a new VM use the project name as sub-domain ?


Hi Ahmed, 

ok, thanks - so where does the hostname thats displayed in Horizon come from / is being generated then ? The same domain across all networks is fine at the moment ;) ... we just need to add a "sub-domain" to hosts based on the project name. 

Thanks for your help!
Alex




On 15 August 2014 17:31, Ahmed Ali (ahmeali) <ahmeali at cisco.com> wrote:

If you use dhcp_domain in nova it will be applied to all projects, IP ranges can be created per project or shared with other projects.
>
>
>>> or do I simply change the OS's hostname config and the nova-api & horizon dashboard will pick that up ?   
>No, I do not think this will happen
>
>
>Hostnames do not uniquely identify instances, it is the uuid.
>
>
>As far as I know, If you want to custom define hostname and domain per instance it would be worth looking into cloud-init and user data using APIs, from horizon you can use “Post-Creation” tab during launch instance wizard and provide a customization script.
>
>
>Good luck
>
>
>Ali
>
>
>From: Alex Leonhardt <aleonhardt.py at gmail.com>
>Date: Friday, August 15, 2014 at 7:08 AM
>To: Ahmed Ali <ahmeali at cisco.com>
>Cc: Abel Lopez <alopgeek at gmail.com>, openstack-operators <openstack-operators at lists.openstack.org> 
>
>Subject: Re: [Openstack-operators] how can I make a new VM use the project name as sub-domain ?
>
>
>
>Hi,  
>
>
>sorry still not quite what I'm after ... so, when I use the Horizon Dashboard (or the nova api client) I can create a VM that will then get a name allocated based on what I named it, or, what I chose as a prefix if I want to provision 2 or more instances (uuidgen is used i guess).
>
>
>as I will have the same domain + the same IP ranges set for all projects, there will eventually be 2 hosts would get the exact same name, if I were to put something in place that'll automatically update my DNS - how can I change nova/horizon to add a ".$project_name" to a VM's name, or do I simply change the OS's hostname config and the nova-api & horizon dashboard will pick that up ? 
>
>
>Alex
>
>
>
>
>
>
>
>On 14 August 2014 23:59, Ahmed Ali (ahmeali) <ahmeali at cisco.com> wrote:
>
>Try to look into changing dhcp_domain in nova.conf to make it work, but will be for all instances.
>>
>>
>>dhcp_domain = <domain>   
>>Note: <domain> is the domain name to use for building the hostnames
>>
>>
>>Or look into cloud-init to customize FQDN per instance, see http://docs.openstack.org/user-guide/content/user-data.html 
>>
>>
>>Hope this is what you are looking for.
>>
>>
>>Ali
>>
>>
>>
>>
>>From: Alex Leonhardt <aleonhardt.py at gmail.com>
>>Date: Thursday, August 14, 2014 at 3:08 PM
>>To: Abel Lopez <alopgeek at gmail.com>
>>Cc: openstack-operators <openstack-operators at lists.openstack.org>
>>Subject: Re: [Openstack-operators] how can I make a new VM use the project name as sub-domain ?
>>
>>
>>
>>Hi Abel, 
>>
>>
>>Yep - I know - but question is, will the OS hostname automatically update the hostname displayed by Horizon when people are using the Dashboard ? Or, if not, how can I convince whatever is creating the VM ( nova-api ? ) to set the hostname as I require ? 
>>
>>
>>Alex
>>
>>
>>
>>
>>
>>On 14 August 2014 20:47, Abel Lopez <alopgeek at gmail.com> wrote:
>>
>>You can also pass user-data on Horizon, it's one of the window tabs in the launch instance dialog.  
>>>
>>>
>>>On Thursday, August 14, 2014, Alex Leonhardt <aleonhardt.py at gmail.com> wrote:
>>>
>>>Thanks! 
>>>>
>>>>
>>>>What about the openstack dashboard - will it update the VM's hostname based on the OS's hostname that's set ? 
>>>>
>>>>
>>>>Alex
>>>>
>>>>
>>>>
>>>>On 14 August 2014 20:08, Abel Lopez <alopgeek at gmail.com> wrote:
>>>>
>>>>Some examples on using user-data 
>>>>>
>>>>>
>>>>>http://docs.openstack.org/user-guide/content/user-data.html
>>>>>
>>>>>
>>>>>On Aug 14, 2014, at 11:48 AM, Alex Leonhardt <aleonhardt.py at gmail.com> wrote:
>>>>>
>>>>>hi all, 
>>>>>>
>>>>>>
>>>>>>am running openstack in a flat-network with just 1 IP range / network and would like to have the VMs' named after the project, e.g.:
>>>>>>
>>>>>>
>>>>>>project name: dev
>>>>>>
>>>>>>
>>>>>>host name: redis1
>>>>>>domain: acme.com
>>>>>>
>>>>>>
>>>>>>resulting name: redis1.dev.acme.com
>>>>>>
>>>>>>
>>>>>>at the moment i'd just get a result of redis1.acme.com - but do want/need the sub-domains as 
>>>>>>
>>>>>>
>>>>>>project: dev 
>>>>>>and
>>>>>>project: internal
>>>>>>and
>>>>>>project: frontend
>>>>>>etc.
>>>>>>
>>>>>>
>>>>>>may use the same name for things they work on ... how is this accomplished ? Or where do I have to look at (in the code) to try and make this a default ? 
>>>>>>
>>>>>>
>>>>>>Thanks a lot!
>>>>>>Alex
>>>>>>
>>>>>>
>>>>>>_______________________________________________
>>>>>>OpenStack-operators mailing list
>>>>>>OpenStack-operators at lists.openstack.org
>>>>>>http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>>>>>>
>>>>>
>>>>
>>
>


_______________________________________________
OpenStack-operators mailing list
OpenStack-operators at lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20140819/bc7f94c3/attachment.html>