Open Stack

HI guys,

any clues what API call I can make to nova-api to rename a VM ?

Alex



On 19 August 2014 17:12, 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
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>
>>
>
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