[one-dev] Megam: addon-knife (How can I know a VM is fully launched)

[Ruben S. Montero]

On Fri, May 2, 2014 at 12:13 PM, Thomas Alrin <alrin at megam.co.in> wrote:

>  Hi
>     In your techniques, you've told to ping the VM, but I don't get IP at
> that point.
>

When deploying the VM in local resources the IP is assigned when the VM is
created, take a look at the NIC attributes



>      I want to wait, to get the ip from my VM. When i run a vm in
> AWS(public cloud) cloud, I can wait for
> *vm_hash['VM']['TEMPLATE'].has_key?('AWS_IP_ADDRESS')*, to get the ip.
>

They are within the NIC attribute in the VM template



>      In the above case, the key *AWS_IP_ADDRESS *seems to be depends on
> AWS cloud.
>     If i create a vm in private cloud, for which key(like
> *AWS_IP_ADDRESS)* , i can wait to get the ip address?
>
> 	 On Thursday 01 May 2014 08:06 AM, Megam Systems wrote:
>
> fya.
>
> As we would loose a 12 hr. window, I queued up a request in the dev
> mailing list.
>
> See if these options help you.
>
>
> -------- Original Message --------  Subject: Re: [one-dev] Megam:
> addon-knife (How can I know a VM is fully launched)  Date: Wed, 30 Apr
> 2014 20:23:42 +0200  From: Ruben S. Montero <rsmontero at opennebula.org><rsmontero at opennebula.org>  To:
> Megam Systems <gomegam at megam.co.in> <gomegam at megam.co.in>  CC:
> dev at lists.opennebula.org
>
> Hi
>
>  As mentioned in yout email you are looking for the AWS_IP_ADDRESS key,
> which is only valid for Amazon Hybrid VMs. This value is obtained through
> the monitorization process as reported/updated by Amazon.
>
>  In general, as boot time of a VM depends on the software stack running
> wihtin, you cannot rely on the VM status reported by the hypervisors, i.e.
> RUNNING means that the VM is running at hypervisor level but it can be
> stuck in the virtual BIOS because of an error or misconfiguration.
>
>  In our internal testing platform we use two techniques:
>
>  1.- Pro-active ping the VM, a simple ping+sleep loop with a timeout.
> 2.- Make the VM callback home to a known URL (you may use onegate for this)
>
>  Note that both requires connectivity to some extent between the knife
> controller and the VM.
>
>  Cheers
>
>  Ruben
>
>
>
>
>
> On Wed, Apr 30, 2014 at 4:24 PM, Megam Systems <gomegam at megam.co.in>wrote:
>
>> Dear Dev-OpenNebula,
>>
>> When working on the addon-knife, upon launching a VM using the OpenNebula
>> API, there is a need to wait till the VM is fully launched. Currently we
>> wait until an IP address is available from the VMPool.
>>
>> Please find the reference of the code here.
>>
>> https://github.com/OpenNebula/addon-knife/blob/master/lib/chef/knife/opennebula_server_create.rb#L168
>>
>> We need a better way as OpenNebula can run in private clouds as well.
>>
>> How can we know that a VM is fully launched and running ? What parameter
>> (status etc..) helps us to figure out that the VM is running.
>>
>> --
>> Cheers,
>> Megam Systems; http://www.gomegam.com
>> email : gomegam at megam.co.in; twitter: @megamsystems
>> blog  : http://blog.megam.co        | try     : https://www.megam.co
>> github: https://github.com/megamsys | youtube : youtube.com/indykish
>>
>> _______________________________________________
>> Dev mailing list
>> Dev at lists.opennebula.org
>> http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org
>>
>>  --
>>  <http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org>
>>  --
>>  Ruben S. Montero, PhD
>> Project co-Lead and Chief Architect<http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org>
>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>  <http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org>
>> www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
>>
>
>
>
> --
> With Warm Regards,
> Thomas Alrin,
> Infrastructure Engineer; Megam Systems;
> email: alrin at megam.co.in; cell: +91 9789345999
> twitter : @thomasalrin
>
>


-- 
-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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