One of our client at eNovance had a need to be able to upload to Swift directly from a web browser without going via a PHP proxy. Things in browser-land are not exactly the same as what we have in user-land, it is a bit more restricted to ensure the end-user security and there is a few hoops to jump through to get it working. To be able to do a xmlrpc upload to another server (swift in this case) there is a ‘standard/recommendation’ document made by W3C about it located here : ...

With a team of colleagues from enovance we are going to be this week-end (2/3 Feb 2013) in Brussels for Fosdem. Feel free to catch me if you want to have a chat about Swift or OpenStack in general. I will be wearing a enovance woodie/t-shirt. See you there!

And here is another year finishing and I am looking back how did I do with my fitness. I have instead did much more cycling finishing a easy sportive in wales of 130km and a pretty hard one in south of france of 160km with a lot of mountains climbed. I made it to 5000Km (for my racing bike not counting my city bike which has around 500km on it) : ...

After almost five years at Rackspace UK I have now decided to move on and come back for good to Paris I will be now at eNovance working as before on OpenStack projects.

Sometime you just need a long trans atlantic flight and a stupidly long stop-over in a random city to do some of those task that can improve your day to day but you never take some time to do it. When using emacs I wanted a simple way to launch a nosetests on the current function my cursor is in Emacs. The syntax on nosetests is a bit tricky and I actually always have to look at my shell history to know the proper syntax (nosetests directory/filename.py:Class.function). ...

With the modular auth plugin system merged into python-novaclient it is now very easy to use nova CLI against the Rackspace Public Cloud powered by OpenStack. we even have a metapackage that would install all the needed bits. This should be easy as doing this : and all dependencies and extensions will be installed. To actually use the CLI you just need to specify the right arguments (or via env variable see nova –help) like this : ...

Historically if you wanted to write software in python against OpenStack swift, people would have use the python-cloudfiles library or swift.common.client shipped with Swift. python-cloudfiles was made mostly for Rackspace CloudFiles before even Swift existed and does a lot of extra stuff not needed for OpenStack Swift (i.e: CDN). swift.common.client was designed for OpenStack Swift from the ground up but is included with Swift which made people having to download the full Swift repository if they wanted to use or tests against it. (i.e: OpenStack glance). ...

A little note about swift3 the S3 emulation layer to OpenStack Swift As from this review we have removed it from Swift since the decision1 was made that only the official OpenStack API would be supported in Swift. The development will be continued in fujita’s repository on github at this URL : https://github.com/fujita/swift3 Feel free to grab the middle-ware or report issue from fujita’s repository. 1 Globally for OpenStack not just for Swift. ...

During the development for OpenStack Essex a lot of work has been done to make Swift working well with the other OpenStack components, this is a list of the work that has been done. MIDDLEWARE To make Swift behaving well in the ‘stack’ we had to get a rock solid keystone middleware and make sure most of the features provided by Swift would be supported by the middleware. The middleware is currently located in the keystone essex repository and was entirely rewritten from the Diablo release to allow support these Swift features : ...

I have been trying lately to get a better understanding of the Swift code base, and I found the best way to know it was to read it from top to bottom and document it along the way. Here is some of my notes, hopefully more will come. I am starting with an object PUT when the request is coming from the proxy server. The request in the log-file will look like this : ...