Read and write from Rackspace Cloud Files

[lvh]

Onyx currently has support for S3 in (but apparently not out). It would be great if we could have Rackspace Cloud Files support as a durable backend, since that gives us high-durability archiving with very low maintenance cost.

jClouds is how you talk to Rackspace Cloud from the JVM, and they have had plans to support Clojure explicitly in the past, that support has all but languished. I have, in the past, tried to make that better when I was working on rackerlabs/otter at https://github.com/lvh/nordschleife/blob/master/src/nordschleife/auto_scale.clj#L54-L80 which may be interesting to an implementor.

[lvh]

Some more research:

• Onyx calls things that get data in/out of Onyx "plugins".
• This means implementing the pipeline extension protocols.
• Rackspace documents how to do this here: https://developer.rackspace.com/docs/cloud-files/getting-started/?lang=java
• The exact artifact names are somewhat poorly documented, but the org is org.apache.jclouds.provider and the artifact names are rackspace-cloudfiles-us for US and rackspace-cloudfiles-uk for everything else (found via https://search.maven.org/#search|ga|1|jclouds%20rackspace%20cloudfiles, as you can see there are red herrings even when you know those magic keywords)

[lvh]

I am moving this back to the original milestone, because Desdemona is a continuously deployed project, and the required reporting is around feature maturity, not artificial releases.