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Updated to basically link to main home wiki.

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*DevstackPy* is a set of **python** scripts and utilities to quickly deploy an OpenStack cloud. *DevstackPy* is a set of **python** scripts and utilities to quickly deploy an OpenStack cloud.
# Goals
* To quickly build dev OpenStack environments in a clean environment (as well as start, stop, and uninstall those environments) with as little baggage as possible.
* To describe working configurations of OpenStack.
* Which code branches work together?
* What do config files look like for those branches?
* What packages are needed for installation for a given distribution?
* 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.
**IMPORTANT:** Be sure to carefully read *stack* and any other scripts you execute before you run them, as they install software and may alter your networking configuration. We strongly recommend that you run stack in a clean and disposable vm when you are first getting started. (*TODO* dry-run mode would be great!).
# Help
In order to determine what *stack* can do for you run the following.
./stack --help
This will typically produce:
Usage: stack [options]
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-c COMPONENT, --component=COMPONENT
openstack component: [db, glance, horizon, keystone,
keystone-client, melange, melange-client, nova, nova-
client, novnc, quantum, quantum-client, rabbit, swift,
swift-keystone]
Install/uninstall/start/stop options:
-a ACTION, --action=ACTION
required action to perform: [install, start, stop,
uninstall]
-d DIR, --directory=DIR
empty root DIR for install or DIR with existing
components for start/stop/uninstall
-i, --ignore-deps ignore dependencies when performing ACTION
-e, --ensure-deps ensure dependencies when performing ACTION (default:
True)
-r COMPONENT, --ref-component=COMPONENT
component which will not have ACTION applied but will be
referenced as if it was (ACTION dependent)
-k, --keep-packages
uninstall will keep any installed packages on the system
Uninstall/stop options:
-n, --no-force stop the continuation of ACTION if basic errors occur
(default: False)
# Stack prerequisites
* linux (tested on ubuntu 11.10 and rhel 6.2)
* python 2.6 or 2.7 (not tested with python 3.0)
For ubuntu 11.10:
$ sudo apt-get install git python-pip python-dev gcc -y
$ sudo easy_install netifaces termcolor pep8 pylint
$ git clone git://github.com/yahoo/Openstack-DevstackPy.git DevstackPy
$ cd DevstackPy
For rhel 6.2:
$ wget http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-5.noarch.rpm
$ sudo yum install -y epel-release-6-5.noarch.rpm
$ sudo yum install -y python-pip gcc python-netifaces git
$ sudo pip-python install termcolor
$ git clone git://github.com/yahoo/Openstack-DevstackPy.git DevstackPy
$ cd DevstackPy
# Actions
*Stack* can do the following:
* __install__ OpenStack components
* __uninstall__ OpenStack components (from a previous *stack* install)
* __start__ OpenStack components (from a previous *stack* install)
* __stop__ OpenStack components (from a previous *stack* start)
Typically the interaction would be that you install a set of components and then start them.
# Simple setup
https://github.com/yahoo/Openstack-DevstackPy/wiki/Simple-Setup
# Config
For those of you that are brave enough to change *stack* here are some starting points.
### conf/stack.ini
Check out *conf/stack.ini* for various configuration settings applied (branches, git repositories...). Check out the header of that file for how the customized configuration values are parsed and what they may result in.
### conf/
Check out *conf/* for various component specific settings and files.
Note that some of these files are templates (ones ending with *.tpl*).
These files may have strings of the format *%NAME%* where *NAME* will most often be adjusted to a real value by the *stack* script.
An example where this is useful is say for the following line:
admin_token = %SERVICE_TOKEN%
Since the script will either prompt for this value (or generate it for you) we can not have this statically set in a configuration file.
### conf/pkgs
Check out *conf/pkgs* for package listings and *conf/pips* for python packages for various distributions.
Note that these files are in a modified json format which allows for simple comments (lines starting with *#*). These comments are useful for explanations of why a version was chosen or the like.
# Starting
**!Installing in a dedicated, disposable vm is safer than installing on your dev machine!**
1. Get and install the above prerequisites.
1. *git clone git://github.com/yahoo/Openstack-DevstackPy.git*
# Customizing
You can override environment variables used in *stack* by editing *stack.ini* or by sourcing a file that contains your environment overrides before your run *stack*.
## Logging
To adjust logging edit the *conf/logging.ini* file which controls the logging levels and handlers.
* You can also change which logging file name python will select ([format defined here](http://docs.python.org/dev/library/logging.config.html)) by setting the environment variable *LOG_FILE*.
# We want more information! # We want more information!
Please check out: <https://github.com/yahoo/Openstack-DevstackPy/wiki> Please check out: <https://github.com/yahoo/Openstack-DevstackPy/wiki>