On 13/02/15 16:01 +0100, Jordan Pittier wrote:
What is the difference between just calling the Glance API to upload an image,versus adding add() functionality to the HTTP image store? You mean using "glance image-create --location http://server1/myLinuxImage [..] " ? If so, I guess adding the add() functionality will save the user from having to find the right POST curl/wget command to properly upload his image.
I believe it's more complex than this. Having an `add` method for the HTTP store implies: - Figuring out the http method the server expects (POST/PUT) - Adding support for at least few HTTP auth methods - Having a sufixed URL where we're sure glance will have proper permissions to upload data. - Handling HTTP responses from the server w.r.t the status of the data upload. For example: What happens if the remote http server runs out of space? What's the response status going to be like? How can we make glance agnostic to these discrepancies across HTTP servers so that it's consistent in its responses to glance users? - How can we handle quota? I'm not fully opposed, although it sounds like not worth it code-wise, maintenance-wise and performance-wise. The user will have to run just 1 command but at the cost of all of the above. Do the points listed above make sense to you? Cheers, Flavio
On Fri, Feb 13, 2015 at 3:55 PM, Jay Pipes <jaypi...@gmail.com> wrote: On 02/13/2015 09:47 AM, Jordan Pittier wrote:Hi list,I would like to add the 'add' capability to the HTTP glance store. Let's say I (as an operator or cloud admin) provide an HTTP server where (authenticated/trusted) users/clients can make the following HTTP request : POST http://server1/myLinuxImage HTTP/1.1 Host: server1 Content-Length: 256000000 Content-Type: application/octet-stream mybinarydata[..] Then the HTTP server will store the binary data, somewhere (for instance locally), some how (for instance in a plain file), so that the data is later on accessible by a simple GET http://server1/myLinuxImage In that case, this HTTP server could easily be a full fleshed Glance store. Questions : 1) Has this been already discussed/proposed ? If so, could someone give me a pointer to this work ? 2) Can I start working on this ? (the 2 main work items are : 'add an add method to glance_store._drivers.http.__Store' and 'add a delete method to glance_store._drivers.http.__Store (HTTP DELETE method)' What is the difference between just calling the Glance API to upload an image, versus adding add() functionality to the HTTP image store? Best, -jay __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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-- @flaper87 Flavio Percoco
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