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From Nux! <...@li.nux.ro>
Subject Re: Experimental - Direct download for templates
Date Thu, 08 Feb 2018 14:03:36 GMT
Hello,

Can you clarify the following about this feature:
- Is local storage supported?
- if above is Yes, then how are the templates synced between HVs? 
- will it require a permanent repository of templates to be available whenever a new HV needs
to deploy them?

Thanks,
Lucian

--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

----- Original Message -----
> From: "Nicolas Vazquez" <Nicolas.Vazquez@shapeblue.com>
> To: "dev" <dev@cloudstack.apache.org>
> Sent: Wednesday, 7 February, 2018 14:19:55
> Subject: Experimental - Direct download for templates

> Hi all,
> 
> 
> A feature has been introduced on 4.11.0 allowing to register templates bypassing
> secondary storage using a new option 'Direct Download'. It allows templates to
> be directly downloaded into primary storage at VM deployment time. It is an
> experimental feature and it is currently supported on KVM hypervisor only. PR:
> https://github.com/apache/cloudstack/pull/2379
> 
> 
> A brief description on the current implementation:
> 
> - CloudStack allows registering Direct Download/Bypass Secondary Storage
> templates for KVM hypervisor by setting the direct_download flag to true on
> registerTemplate.
> 
> - Templates are not downloaded to secondary storage after they are registered on
> CloudStack, are marked as Bypass Secondary Storage and as Ready for deployment.
> 
> - When Bypassed templates are selected for VM deployment, download is delegated
> to the agents, which would store the templates on primary storage instead of
> copying them from secondary storage
> 
> - Metalinks are supported, but aria2 dependency has to be manually installed on
> the agents.
> 
> 
> There are currently some PRs in progress for 4.11.1 with some improvements for
> this functionality.
> 
> 
> Any comments/ideas?
> 
> 
> Thanks,
> 
> Nicolas
> 
> Nicolas.Vazquez@shapeblue.com
> www.shapeblue.com
> ,
> @shapeblue

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