OpenStack Storage (Swift)
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Madhuri Kumari 6b441fabd9 Added swift-container-info tool.
This is a very simple swift tool to retrieve information
of a container that is located on the storage node.
One can call the tool with a given container db file
as it is stored on the storage node system.
It will then return several information about that container.

Change-Id: Ifebaed6c51a9ed5fbc0e7572bb43ef05d7dd254b
2014-03-22 17:30:20 +05:30
bin Added swift-container-info tool. 2014-03-22 17:30:20 +05:30
doc Added swift-container-info tool. 2014-03-22 17:30:20 +05:30
etc Merge "Add tempurl to the example proxy config's pipeline" 2014-03-08 09:53:19 +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 "Block X-Backend* in gatekeeper" 2014-03-22 00:17:17 +00:00
test Merge "Block X-Backend* in gatekeeper" 2014-03-22 00:17:17 +00:00
.coveragerc Align tox.ini and fix coverage jobs in jenkins. 2012-06-08 20:05:14 -04:00
.functests Move the tests from functionalnosetests 2014-01-07 15:58:11 +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 Allow specify arguments to .probetests script 2013-12-24 01:18:19 -08:00
.unittests make test tooling less opinionated 2013-12-06 12:07:52 -08:00
AUTHORS AUTHORS and CHANGELOG update for 1.13 release 2014-02-23 22:02:23 -08:00
babel.cfg add pybabel setup.py commands and initial .pot 2011-01-27 00:01:24 +00:00
CHANGELOG AUTHORS and CHANGELOG update for 1.13 release 2014-02-23 22:02:23 -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 Remove swiftclient dependency 2014-02-06 09:44:58 +00:00
setup.cfg Added swift-container-info tool. 2014-03-22 17:30:20 +05:30
setup.py Migrate to pbr for build 2013-08-14 19:10:07 -03:00
test-requirements.txt Remove swiftclient dependency 2014-02-06 09:44:58 +00:00
tox.ini use specific hacking rules 2014-01-11 14:02:20 +08:00

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