We've had this requirement a few times before.
In short, it goes against CS's concept of service offerings

Theres two approaches we've used:

1. create, in advance, service offerings  of every permutation of 
memory/cpu/disk  that you want to sell. Or
2. Use the API to generate new service offerings on the fly, when people spin 
up instances

Whichever approach you use, doing this in the CS gui will be a lot of work, 
easiest thing is to create a provisioning site to do it via API, which is 
relatively  simple


In terms of usage/billing, you then just bill out against a service offering 
(its just you have lots of different ones)


If you have a look at these guys:
http://www.umbeehosting.co.uk/cloud-hosting/public-cloud-instances/

they are using approach (1) above




Kind Regards
Giles


Giles Sirett
Managing Consultant



D: +44 20 3603 0541 | S: +44 20 3603 0540 | M: +44 796 111 2055

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ShapeBlue Ltd, 53 Chandos Place, Covent Garden, London, WC2N 4HS

-----Original Message-----
From: Shanker Balan [mailto:m...@shankerbalan.net]
Sent: 05 October 2012 07:56
To: cloudstack-users@incubator.apache.org
Subject: Re: How can I specify the vCPU and ram manually?

On 04-Oct-2012, at 7:19 PM, sx chen <cloudchen0...@gmail.com> wrote:

> Generally speaking,I want to deploy a private cloud,let the custom
> decide the vCPU,ram and dist themselves.

How would you meter and bill adhoc instance types created by customers?

Just curious.

Regards
@shankerbalan

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