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Message from discussion Stemcell for a new BOSH CPI
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Ruslan Karachun  
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 More options Aug 31 2012, 3:44 am
From: Ruslan Karachun <rus...@active.by>
Date: Fri, 31 Aug 2012 10:44:05 +0300
Local: Fri, Aug 31 2012 3:44 am
Subject: Re: [bosh-dev] Stemcell for a new BOSH CPI
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Can somebody help?

On 08/29/2012 05:52 PM, Ruslan Karachun wrote:

> Hello.

> CloudStack API required HTTP Url for uploading template.
> How can I share template to be available via HTTP (in create_stemcell
> method)?
> Can I use "simple_blobstore_server" for this?

> Thanks!

> On 07/31/2012 09:15 PM, ferdy wrote:

>> On Tuesday, July 31, 2012 6:18:48 PM UTC+2, Martin Englund wrote:

>>     On Tue, Jul 31, 2012 at 9:10 AM, Dr Nic Williams
>>     <drnicwilli...@gmail.com <mailto:drnicwilli...@gmail.com>> wrote:

>>      > What on a stemcell is specific to an IaaS (hence different
>>     stemcells) and
>>      > what is specific to something in the image (ubuntu, hypervisor?,
>>     ...?)

>>     The reason for different stemcells for different IaaS is twofold:
>>     1) they use a different disk image format[1][2]
>>     2) the way we can get bootstrap configuration to the VM differs[3][4]

>>     [1]

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/misc/stemcell/...

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/misc/stemcell/...>>

>>     [2]

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/misc/stemcell/...

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/misc/stemcell/...>>

>>     [3]

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/lib/agent/infr...

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/lib/agent/infr...>>

>>     [4]

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/lib/agent/infr...

>> <https://github.com/cloudfoundry/bosh/blob/master/agent/lib/agent/infr...>>

>> Another use case for 1) could be, as Dr Nic asked, creating different
>> stemcells for the same IaaS. For example, for OpenStack you can use
>> several images formats depending on your hypervisor. In that case, you
>> can use the cloud_properties (or stemcell_properties in the future) at
>> the stemcell.MF [1] and prepare the CPI [2] to read those properties in
>> order to pass them to the IaaS API.

>> [1]
>> https://github.com/frodenas/bosh/blob/master/agent/misc/stemcell/buil...

>> [2]
>> https://github.com/frodenas/openstack-bosh-cpi/blob/master/lib/cloud/...

>> - Ferdy

> --
> Ruslan


 
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