<commit_before>DevStack is a set of scripts and utilities to quickly deploy an OpenStack cloud.

# Goals

* To quickly build dev OpenStack environments in a clean Ubuntu or Fedora
  environment
* To describe working configurations of OpenStack (which code branches
  work together?  what do config files look like for those branches?)
* To make it easier for developers to dive into OpenStack so that they can
  productively contribute without having to understand every part of the
  system at once
* To make it easy to prototype cross-project features
* To provide an environment for the OpenStack CI testing on every commit
  to the projects

Read more at http://docs.openstack.org/developer/devstack

IMPORTANT: Be sure to carefully read `stack.sh` and any other scripts you
execute before you run them, as they install software and will alter your
networking configuration.  We strongly recommend that you run `stack.sh`
in a clean and disposable vm when you are first getting started.

# Versions

The DevStack master branch generally points to trunk versions of OpenStack
components.  For older, stable versions, look for branches named
stable/[release] in the DevStack repo.  For example, you can do the
following to create a juno OpenStack cloud:

    git checkout stable/juno
    ./stack.sh

You can also pick specific OpenStack project releases by setting the appropriate
`*_BRANCH` variables in the ``localrc`` section of `local.conf` (look in
`stackrc` for the default set).  Usually just before a release there will be
milestone-proposed branches that need to be tested::

    GLANCE_REPO=git://git.openstack.org/openstack/glance.git
    GLANCE_BRANCH=milestone-proposed

# Start A Dev Cloud<commit_msg>Update stable branch example<commit_after>DevStack is a set of scripts and utilities to quickly deploy an OpenStack cloud.

# Goals

* To quickly build dev OpenStack environments in a clean Ubuntu or Fedora
  environment
* To describe working configurations of OpenStack (which code branches
  work together?  what do config files look like for those branches?)
* To make it easier for developers to dive into OpenStack so that they can
  productively contribute without having to understand every part of the
  system at once
* To make it easy to prototype cross-project features
* To provide an environment for the OpenStack CI testing on every commit
  to the projects

Read more at http://docs.openstack.org/developer/devstack

IMPORTANT: Be sure to carefully read `stack.sh` and any other scripts you
execute before you run them, as they install software and will alter your
networking configuration.  We strongly recommend that you run `stack.sh`
in a clean and disposable vm when you are first getting started.

# Versions

The DevStack master branch generally points to trunk versions of OpenStack
components.  For older, stable versions, look for branches named
stable/[release] in the DevStack repo.  For example, you can do the
following to create a Newton OpenStack cloud:

    git checkout stable/newton
    ./stack.sh

You can also pick specific OpenStack project releases by setting the appropriate
`*_BRANCH` variables in the ``localrc`` section of `local.conf` (look in
`stackrc` for the default set).  Usually just before a release there will be
milestone-proposed branches that need to be tested::

    GLANCE_REPO=git://git.openstack.org/openstack/glance.git
    GLANCE_BRANCH=milestone-proposed

# Start A Dev Cloud
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