[one-users] Cloud View with Persistent Image

[Nicolas Bélan]

Hi,

I have exactly the same pb, and same needs ...
I start think about a dedicated web service to handle that, but a
shorter (quicker) way to achieve deployments would be nice !

I will follow this thread for feebacks too

Best regards,
NB

Le 02/10/2014 06:07, Anandharaj Subramaniam a écrit :
>
> Hi All,
>
>  
>
> Just need some clarification and would like to get you guys feedback
> on managing VMs using OpenNebula in your environment.
>
>  
>
> _Our current practice as below (using OpenNebula 4.2):_
>
> 1.       New VM request
>
> -          Clone existing image (master image) to a new image. All the
> images are persistent.
>
> -          Clone existing template (master template) to a new template.
>
> -          Update the new template -- set cpu/vcpu, memory, image
> (point to newly created image), ip address, etc
>
> -          Instantiate the template
>
>  
>
> 2.       Update the spec of the VM
>
> -          Shutdown / delete the running VM
>
> -          Update the template belongs to that particular VM -- e.g
> set the new memory size
>
> -          Instantiate the template
>
>  
>
> Note:  a) In our setup, every VM will have their own template as per
> done in #1
>
>              b) Reason being update the template & re-instantiate
> instead of just  update the memory in VM is because of #3 below
>
>  
>
> 3.       Repair the VM
>
> -          In some cases the VM's filesystem will have some errors
> (eg: due to force shutdown / nfs issues) therefore require to run fsck
> using live CD.
>
> -          Image type CDROM cannot be attached thru VM list page
> (click on the VM -> storage tab)
>
> -          Update the VM's template -- add disk and choose the ISO
> image, choose boot = cdrom
>
> -          Instantiate the template and fix the errors using the live CD
>
> -          Shutdown / delete the running VM
>
> -          Update the VM's template -- remove the ISO image and choose
> boot = hd
>
> -          Instantiate the template
>
>  
>
> From the above scenario, anything that we are doing inefficiently? Im
> still new to this OpenNebula so appreciate you guys feedback / suggestion
>
>  
>
>  
>
> _Testing environment (OpenNebula 4.8)_
>
>  
>
> To further understand on this OpenNebula, I have setup ONE 4.8 and
> testing the Cloud View and see how I can improve my operation / VM
> administration.
>
>  
>
> The way user can create VM in Cloud View is the one I need -- user
> define the VM name, choose the template (OS), set the memory & CPU and
> launch it. Very simple. But unfortunately this only works with
> non-persistent image type. In my case, I cannot use non-persistent
> image because of the reason stated in #2 and #3 above.
>
>  
>
> So what I think Cloud View can be improved is:
>
> -          Based on config parameter (oned.conf ->
> ONE_DEPLOY=Persistent),  when user create a VM, a template should be
> created and the image should be cloned as persistent image. This is
> kinda same behavior as "Save" VM with only different is the image
> persistent yes/no and template spec
>
> -          Able to attach / detach CDROM
>
> Feel free to comment on this and provide some feedback.
>
>  
>
> --
>
> Regards,
>
> Anandharaj
>
>  
>
>
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