Overview -------- This charm provides the swift-proxy component of the OpenStack Swift object storage system. It can be deployed as part of its own stand-alone storage cluster or it can be integrated with the other OpenStack components, assuming those are also managed by Juju. For Swift to function, you'll also need to deploy additional swift-storage nodes using the cs:precise/swift-storage charm. For more information about Swift and its architecture, visit the [official project website](http://swift.openstack.org) This charm was developed to support deploying multiple version of Swift on Ubuntu Precise 12.04, as they relate to the release series of OpenStack. That is, OpenStack Essex corresponds to Swift 1.4.8 while OpenStack Folsom shipped 1.7.4. This charm can be used to deploy either (and future) versions of Swift onto an Ubuntu Precise 12.04 or Trusty 14.04 making use of the Ubuntu Cloud Archive when needed. Usage ----- Currently, Swift may be deployed in two ways. In either case, additional storage nodes are required. The configuration option that dictates how to deploy this charm is the 'zone-assignment' setting. This section describes how to select the appropriate zone assignment policy, as well as a few other configuration settings of interest. Many of the configuration settings can be left as default. **Zone Assignment** This setting determines how the charm assigns new storage nodes to storage zones. The default, 'manual' option is suggested for production as it allows administrators to carefully architect the storage cluster. It requires each swift-storage service to be deployed with an explicit storage zone configured in its deployment settings. Upon relation to a swift-proxy, the storage node will request membership to its configured zone and be assigned by the swift-proxy charm accordingly. Using the cs:precise/swift-storage charm with this charm, a deployment would look something like: $ cat >swift.cfg <swift.cfg <