I was trying to get a list of buckets (and eventually upload one file), but I couldn't get this to return more than one bucket until I specified the right region.

pkgcloud-test.coffee

# docs here: 
# https://github.com/nodejitsu/pkgcloud/blob/master/docs/providers/rackspace/storage.md
pkgcloud = require('pkgcloud')

client = pkgcloud.storage.createClient
  provider: 'rackspace'
  username: process.env.RACKSPACE_USERNAME
  apiKey: process.env.RACKSPACE_API_KEY
  authUrl: 'https://auth.api.rackspacecloud.com'
  region: 'ORD'

client.getContainers 
  limit: 10
,
  (err, containers) ->
    console.log(err, 'containers...')
    for container in containers
      console.log container.name
      client.getFiles container, (err, files) ->
        console.log err, 'files...'
        for file in files
          console.log file.name