OpenStack Storage (Swift)
Go to file
Chuck Thier 0a122c1575 Add targeted config loading to swift-init
This allows an easier and more explicit way to tell swift-init to run on
specific servers.  For example with an SAIO, this allows you to do
something like:

swift-init object-server.1 reload

to reload just the 1st object server.  A more real world example is when
you are running separate servers for replication.  In this example you
might have an object-server/public.conf and
object-server/replication.conf.  With this change you can do something
like:

swift-init object-server.replication reload

to just reload the replication server.

DocImpact
Change-Id: I5c6046b5ee28e17dadfc5fc53d1d872d9bb8fe48
2014-05-19 14:43:50 +00:00
bin Add targeted config loading to swift-init 2014-05-19 14:43:50 +00:00
doc Add targeted config loading to swift-init 2014-05-19 14:43:50 +00:00
etc Add tests and comments re constraints in /info 2014-04-09 11:59:24 +01:00
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 Add targeted config loading to swift-init 2014-05-19 14:43:50 +00:00
test Add targeted config loading to swift-init 2014-05-19 14:43:50 +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 updates for 1.13.1 release 2014-04-03 09:11:47 -07:00
.probetests Allow specify arguments to .probetests script 2013-12-24 01:18:19 -08:00
.unittests Fix coverage report for newer versions of coverage 2014-04-24 16:50:03 +00:00
AUTHORS updates for 1.13.1 release 2014-04-03 09:11:47 -07:00
babel.cfg add pybabel setup.py commands and initial .pot 2011-01-27 00:01:24 +00:00
CHANGELOG updates for 1.13.1 release 2014-04-03 09:11:47 -07:00
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-account-info tool. 2014-03-31 10:05:52 +05:30
setup.py update setup.py with pbr version 2014-04-08 10:26:40 -07:00
test-requirements.txt Fix test-requirements.txt 2014-04-17 16:55:14 +00:00
tox.ini In-process swift server for functional tests 2014-04-29 08:45:11 -04:00

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