OpenStack Storage (Swift)
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Peter Portante ba5fe5f39e Use files in the source tree instead of cut/paste
Many of the large files are included in the tree and the script now
leverages a checked out swift tree to provide those files so that
users don't have to cut/paste text from the document. The contents of
those files are still included in the document for reference.

Updated to add sudo in appropriate places so that the entire script
can be run as the user instead of as root.

We also simplify the steps needed to get resetswift script working
(don't need to edit the user name).

Change-Id: Ie5b5a815870edcc205d273e35e0bbd2426d3b002
Signed-off-by: Peter Portante <peter.portante@redhat.com>
2013-12-09 20:55:08 -05:00
bin Merge "Remove swift-bench" 2013-12-06 00:00:54 +00:00
doc Use files in the source tree instead of cut/paste 2013-12-09 20:55:08 -05:00
etc Merge "Opt out of the service catalog" 2013-12-06 22:26:10 +00:00
examples Add a user variable to templates 2013-09-17 11:46:04 +10:00
locale Reverted the pulling out of various middleware: 2012-05-16 21:25:10 +00:00
swift Merge "Prevent early auth deny in tempauth when using swift3 middleware." 2013-12-07 10:02:00 +00:00
test Merge "Prevent early auth deny in tempauth when using swift3 middleware." 2013-12-07 10:02:00 +00:00
.coveragerc Align tox.ini and fix coverage jobs in jenkins. 2012-06-08 20:05:14 -04:00
.functests make test tooling less opinionated 2013-12-06 12:07:52 -08:00
.gitignore fix(gitignore) : ignore *.egg and *.egg-info 2013-07-30 15:11:00 -04:00
.gitreview Add .gitreview config file for gerrit. 2011-10-24 15:05:49 -04:00
.mailmap Release notes for Swift 1.11.0 2013-12-06 09:21:50 -08:00
.probetests make test tooling less opinionated 2013-12-06 12:07:52 -08:00
.unittests make test tooling less opinionated 2013-12-06 12:07:52 -08:00
AUTHORS Release notes for Swift 1.11.0 2013-12-06 09:21:50 -08:00
babel.cfg add pybabel setup.py commands and initial .pot 2011-01-27 00:01:24 +00:00
CHANGELOG clarify the current state of the DiskFile API 2013-12-09 10:33:53 -08:00
CONTRIBUTING.md HEAD on account returns 410 if account was deleted and not yet reaped 2013-10-29 13:49:38 -07:00
LICENSE Convert LICENSE to use unix style line endings. 2012-12-19 12:48:27 -05:00
MANIFEST.in Add requirements files to the source distribution 2013-06-03 19:26:20 +04:00
README.md Correct URL in readme 2013-10-07 22:27:34 -07:00
requirements.txt Make pbr a build-time only dependency 2013-10-29 12:29:49 -07:00
setup.cfg Merge "Allow access to the in-memory object server" 2013-12-07 08:51:33 +00:00
setup.py Migrate to pbr for build 2013-08-14 19:10:07 -03:00
test-requirements.txt Start using Hacking 2013-07-15 11:41:58 +02:00
tox.ini Remove Python 3.3 from list of tox environments 2013-12-02 13:54:40 -05:00

Swift

A distributed object storage system designed to scale from a single machine to thousands of servers. Swift is optimized for multi-tenancy and high concurrency. Swift is ideal for backups, web and mobile content, and any other unstructured data that can grow without bound.

Swift provides a simple, REST-based API fully documented at http://docs.openstack.org/.

Swift was originally developed as the basis for Rackspace's Cloud Files and was open-sourced in 2010 as part of the OpenStack project. It has since grown to include contributions from many companies and has spawned a thriving ecosystem of 3rd party tools. Swift's contributors are listed in the AUTHORS file.

Docs

To build documentation install sphinx (pip install sphinx), run python setup.py build_sphinx, and then browse to /doc/build/html/index.html. These docs are auto-generated after every commit and available online at http://docs.openstack.org/developer/swift/.

For Developers

The best place to get started is the "SAIO - Swift All In One". This document will walk you through setting up a development cluster of Swift in a VM. The SAIO environment is ideal for running small-scale tests against swift and trying out new features and bug fixes.

You can run unit tests with .unittests and functional tests with .functests.

Code Organization

  • bin/: Executable scripts that are the processes run by the deployer
  • doc/: Documentation
  • etc/: Sample config files
  • swift/: Core code
    • account/: account server
    • common/: code shared by different modules
      • middleware/: "standard", officially-supported middleware
      • ring/: code implementing Swift's ring
    • container/: container server
    • obj/: object server
    • proxy/: proxy server
  • test/: Unit and functional tests

Data Flow

Swift is a WSGI application and uses eventlet's WSGI server. After the processes are running, the entry point for new requests is the Application class in swift/proxy/server.py. From there, a controller is chosen, and the request is processed. The proxy may choose to forward the request to a back- end server. For example, the entry point for requests to the object server is the ObjectController class in swift/obj/server.py.

For Deployers

Deployer docs are also available at http://docs.openstack.org/developer/swift/. A good starting point is at http://docs.openstack.org/developer/swift/deployment_guide.html

You can run functional tests against a swift cluster with .functests. These functional tests require /etc/swift/test.conf to run. A sample config file can be found in this source tree in test/sample.conf.

For Client Apps

For client applications, official Python language bindings are provided at http://github.com/openstack/python-swiftclient.

Complete API documentation at http://docs.openstack.org/api/openstack-object-storage/1.0/content/


For more information come hang out in #openstack-swift on freenode.

Thanks,

The Swift Development Team