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Merge pull request #8 from tbielawa/master

Bootstrap
This commit is contained in:
Michael DeHaan 2012-03-09 08:51:46 -08:00
commit e67e446950
38 changed files with 7219 additions and 1101 deletions

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@ -0,0 +1,5 @@
<li class="dropdown" data-dropdown="dropdown">
<a href="{{ pathto(master_doc) }}"
class="dropdown-toggle">{{ _('Site') }}</a>
<span class="globaltoc">{{ toctree(maxdepth=1) }}</span>
</li>

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@ -0,0 +1,126 @@
{% extends "basic/layout.html" %}
{% set script_files = script_files + ['_static/bootstrap-dropdown.js', '_static/bootstrap-scrollspy.js'] %}
{% set css_files = ['_static/bootstrap.css', '_static/bootstrap-sphinx.css'] + css_files %}
{# Sidebar: Rework into our Boostrap nav section. #}
{% macro navBar() %}
<div class="topbar" data-scrollspy="scrollspy" >
<div class="topbar-inner">
<div class="container">
<a class="brand" href="{{ pathto(master_doc) }}">{{ shorttitle|e }}</a>
<ul class="nav">
{% block sidebartoc %}
{% include "globaltoc.html" %}
{% include "localtoc.html" %}
{% endblock %}
{% block sidebarrel %}
{% include "relations.html" %}
{% endblock %}
{% block sidebarsourcelink %}
{% include "sourcelink.html" %}
{% endblock %}
</ul>
<ul class="nav secondary-nav">
{% block sidebarsearch %}
{% include "searchbox.html" %}
{% endblock %}
</ul>
</div>
</div>
</div>
{% endmacro %}
{%- block extrahead %}
<script type="text/javascript">
(function () {
/**
* Patch TOC list.
*
* Will mutate the underlying span to have a correct ul for nav.
*
* @param $span: Span containing nested UL's to mutate.
* @param minLevel: Starting level for nested lists. (1: global, 2: local).
*/
var patchToc = function ($span, minLevel) {
var $tocList = $("<ul/>").attr('class', "dropdown-menu"),
findA;
// Find all a "internal" tags, traversing recursively.
findA = function ($elem, level) {
var level = level || 0,
$items = $elem.find("> li > a.internal, > ul, > li > ul");
// Iterate everything in order.
$items.each(function (index, item) {
var $item = $(item),
tag = item.tagName.toLowerCase(),
pad = 10 + ((level - minLevel) * 10);
if (tag === 'a' && level >= minLevel) {
// Add to existing padding.
$item.css('padding-left', pad + "px");
// Add list element.
$tocList.append($("<li/>").append($item));
} else if (tag === 'ul') {
// Recurse.
findA($item, level + 1);
}
});
};
// Start construction and return.
findA($span);
// Wipe out old list and patch in new one.
return $span.empty("ul").append($tocList);
};
$(document).ready(function () {
// Patch the global and local TOC's to be bootstrap-compliant.
patchToc($("span.globaltoc"), 1);
patchToc($("span.localtoc"), 2);
// Activate.
$('#topbar').dropdown();
});
}());
</script>
{% endblock %}
{% block header %}{{ navBar() }}{% endblock %}
{# Silence the sidebar's, relbar's #}
{% block sidebar1 %}{% endblock %}
{% block sidebar2 %}{% endblock %}
{% block relbar1 %}{% endblock %}
{% block relbar2 %}{% endblock %}
{%- block content %}
<div class="container">
{% block body %} {% endblock %}
</div>
{%- endblock %}
{%- block footer %}
<footer class="footer">
<div class="container">
<p class="pull-right"><a href="#">Back to top</a></p>
<p>
{%- if show_copyright %}
{%- if hasdoc('copyright') %}
{% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}<br/>
{%- else %}
{% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}<br/>
{%- endif %}
{%- endif %}
{%- if last_updated %}
{% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}<br/>
{%- endif %}
{%- if show_sphinx %}
{% trans sphinx_version=sphinx_version|e %}Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> {{ sphinx_version }}.{% endtrans %}<br/>
{%- endif %}
</p>
</div>
</footer>
{%- endblock %}

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@ -0,0 +1,5 @@
<li class="dropdown" data-dropdown="dropdown">
<a href="#"
class="dropdown-toggle">{{ _('Page') }}</a>
<span class="localtoc">{{ toc }}</span>
</li>

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@ -0,0 +1,8 @@
{%- if prev %}
<li><a href="{{ prev.link|e }}"
title="{{ _('previous chapter') }}">{{ "&laquo;"|safe }} {{ prev.title }}</a></li>
{%- endif %}
{%- if next %}
<li><a href="{{ next.link|e }}"
title="{{ _('next chapter') }}">{{ next.title }} {{ "&raquo;"|safe }}</a></li>
{%- endif %}

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@ -0,0 +1,7 @@
{%- if pagename != "search" %}
<form class="pull-left" action="{{ pathto('search') }}" method="get">
<input type="text" name="q" placeholder="Search" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
{%- endif %}

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@ -0,0 +1,4 @@
{%- if show_source and has_source and sourcename %}
<li><a href="{{ pathto('_sources/' + sourcename, true)|e }}"
rel="nofollow">{{ _('Source') }}</a></li>
{%- endif %}

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@ -0,0 +1,55 @@
/* ============================================================
* bootstrap-dropdown.js v1.4.0
* http://twitter.github.com/bootstrap/javascript.html#dropdown
* ============================================================
* Copyright 2011 Twitter, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================ */
!function( $ ){
"use strict"
/* DROPDOWN PLUGIN DEFINITION
* ========================== */
$.fn.dropdown = function ( selector ) {
return this.each(function () {
$(this).delegate(selector || d, 'click', function (e) {
var li = $(this).parent('li')
, isActive = li.hasClass('open')
clearMenus()
!isActive && li.toggleClass('open')
return false
})
})
}
/* APPLY TO STANDARD DROPDOWN ELEMENTS
* =================================== */
var d = 'a.menu, .dropdown-toggle'
function clearMenus() {
$(d).parent('li').removeClass('open')
}
$(function () {
$('html').bind("click", clearMenus)
$('body').dropdown( '[data-dropdown] a.menu, [data-dropdown] .dropdown-toggle' )
})
}( window.jQuery || window.ender );

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@ -0,0 +1,107 @@
/* =============================================================
* bootstrap-scrollspy.js v1.4.0
* http://twitter.github.com/bootstrap/javascript.html#scrollspy
* =============================================================
* Copyright 2011 Twitter, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================== */
!function ( $ ) {
"use strict"
var $window = $(window)
function ScrollSpy( topbar, selector ) {
var processScroll = $.proxy(this.processScroll, this)
this.$topbar = $(topbar)
this.selector = selector || 'li > a'
this.refresh()
this.$topbar.delegate(this.selector, 'click', processScroll)
$window.scroll(processScroll)
this.processScroll()
}
ScrollSpy.prototype = {
refresh: function () {
this.targets = this.$topbar.find(this.selector).map(function () {
var href = $(this).attr('href')
return /^#\w/.test(href) && $(href).length ? href : null
})
this.offsets = $.map(this.targets, function (id) {
return $(id).offset().top
})
}
, processScroll: function () {
var scrollTop = $window.scrollTop() + 10
, offsets = this.offsets
, targets = this.targets
, activeTarget = this.activeTarget
, i
for (i = offsets.length; i--;) {
activeTarget != targets[i]
&& scrollTop >= offsets[i]
&& (!offsets[i + 1] || scrollTop <= offsets[i + 1])
&& this.activateButton( targets[i] )
}
}
, activateButton: function (target) {
this.activeTarget = target
this.$topbar
.find(this.selector).parent('.active')
.removeClass('active')
this.$topbar
.find(this.selector + '[href="' + target + '"]')
.parent('li')
.addClass('active')
}
}
/* SCROLLSPY PLUGIN DEFINITION
* =========================== */
$.fn.scrollSpy = function( options ) {
var scrollspy = this.data('scrollspy')
if (!scrollspy) {
return this.each(function () {
$(this).data('scrollspy', new ScrollSpy( this, options ))
})
}
if ( options === true ) {
return scrollspy
}
if ( typeof options == 'string' ) {
scrollspy[options]()
}
return this
}
$(document).ready(function () {
$('body').scrollSpy('[data-scrollspy] li > a')
})
}( window.jQuery || window.ender );

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@ -0,0 +1,24 @@
/*
* bootstrap-sphinx.css
* ~~~~~~~~~~~~~~~~~~~~
*
* Sphinx stylesheet -- Twitter Bootstrap theme.
*/
body {
padding-top: 42px;
}
div.documentwrapper {
float: left;
width: 100%;
}
{%- block sidebarlogo %}
{%- if logo %}
.topbar h3 a, .topbar .brand {
background: transparent url("{{ logo }}") no-repeat 22px 3px;
padding-left: 62px;
}
{%- endif %}
{%- endblock %}

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_themes/bootstrap/static/bootstrap.css vendored Normal file

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@ -0,0 +1,5 @@
# Twitter Bootstrap Theme
[theme]
inherit = basic
stylesheet = basic.css
pygments_style = tango

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@ -22,6 +22,7 @@ import os
#sys.path.append(os.path.abspath('some/directory'))
sys.path.insert(0, os.path.join('ansible', 'lib'))
sys.path.append(os.path.abspath('_themes'))
from ansible import __version__, __author__
@ -98,6 +99,10 @@ pygments_style = 'sphinx'
# Options for HTML output
# -----------------------
html_theme_path = ['_themes']
html_theme = 'bootstrap'
html_short_title = 'Ansible'
# The style sheet to use for HTML and HTML Help pages. A file of that name
# must exist either in Sphinx' static/ path, or in one of the custom paths
# given in html_static_path.
@ -149,7 +154,7 @@ html_last_updated_fmt = '%b %d, %Y'
#html_split_index = False
# If true, the reST sources are included in the HTML build as _sources/<name>.
#html_copy_source = True
html_copy_source = False
# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it. The value of this option must be the

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@ -1,5 +1,4 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
@ -10,44 +9,142 @@
<title>YAML Format &mdash; Ansible v0.0.1 documentation</title>
<link rel="stylesheet" href="_static/default.css" type="text/css" />
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<link rel="stylesheet" href="_static/bootstrap.css" type="text/css" />
<link rel="stylesheet" href="_static/bootstrap-sphinx.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '',
VERSION: '0.0.1',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
HAS_SOURCE: false
};
</script>
<script type="text/javascript" src="_static/jquery.js"></script>
<script type="text/javascript" src="_static/underscore.js"></script>
<script type="text/javascript" src="_static/doctools.js"></script>
<script type="text/javascript" src="_static/bootstrap-dropdown.js"></script>
<script type="text/javascript" src="_static/bootstrap-scrollspy.js"></script>
<link rel="top" title="Ansible v0.0.1 documentation" href="index.html" />
<link rel="next" title="Playbooks: Ansible for Deployment, Configuration Management, and Orchestration" href="playbooks.html" />
<link rel="prev" title="Ansible Modules" href="modules.html" />
<link rel="next" title="Playbooks" href="playbooks.html" />
<link rel="prev" title="Ansible Modules" href="modules.html" />
<script type="text/javascript">
(function () {
/**
* Patch TOC list.
*
* Will mutate the underlying span to have a correct ul for nav.
*
* @param $span: Span containing nested UL's to mutate.
* @param minLevel: Starting level for nested lists. (1: global, 2: local).
*/
var patchToc = function ($span, minLevel) {
var $tocList = $("<ul/>").attr('class', "dropdown-menu"),
findA;
// Find all a "internal" tags, traversing recursively.
findA = function ($elem, level) {
var level = level || 0,
$items = $elem.find("> li > a.internal, > ul, > li > ul");
// Iterate everything in order.
$items.each(function (index, item) {
var $item = $(item),
tag = item.tagName.toLowerCase(),
pad = 10 + ((level - minLevel) * 10);
if (tag === 'a' && level >= minLevel) {
// Add to existing padding.
$item.css('padding-left', pad + "px");
// Add list element.
$tocList.append($("<li/>").append($item));
} else if (tag === 'ul') {
// Recurse.
findA($item, level + 1);
}
});
};
// Start construction and return.
findA($span);
// Wipe out old list and patch in new one.
return $span.empty("ul").append($tocList);
};
$(document).ready(function () {
// Patch the global and local TOC's to be bootstrap-compliant.
patchToc($("span.globaltoc"), 1);
patchToc($("span.localtoc"), 2);
// Activate.
$('#topbar').dropdown();
});
}());
</script>
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="playbooks.html" title="Playbooks: Ansible for Deployment, Configuration Management, and Orchestration"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="modules.html" title="Ansible Modules"
accesskey="P">previous</a> |</li>
<li><a href="index.html">Ansible v0.0.1 documentation</a> &raquo;</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="topbar" data-scrollspy="scrollspy" >
<div class="topbar-inner">
<div class="container">
<a class="brand" href="index.html">Ansible</a>
<ul class="nav">
<li class="dropdown" data-dropdown="dropdown">
<a href="index.html"
class="dropdown-toggle">Site</a>
<span class="globaltoc"><ul class="current">
<li class="toctree-l1"><a class="reference internal" href="gettingstarted.html">Getting Started</a></li>
<li class="toctree-l1"><a class="reference internal" href="patterns.html">The Inventory File, Patterns, and Groups</a></li>
<li class="toctree-l1"><a class="reference internal" href="examples.html">Command Line Examples</a></li>
<li class="toctree-l1"><a class="reference internal" href="modules.html">Ansible Modules</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="">YAML Format</a></li>
<li class="toctree-l1"><a class="reference internal" href="playbooks.html">Playbooks</a></li>
<li class="toctree-l1"><a class="reference internal" href="api.html">Using the Python API</a></li>
<li class="toctree-l1"><a class="reference internal" href="man.html">Man Pages</a></li>
</ul>
</span>
</li>
<li class="dropdown" data-dropdown="dropdown">
<a href="#"
class="dropdown-toggle">Page</a>
<span class="localtoc"><ul>
<li><a class="reference internal" href="#">YAML Format</a><ul>
<li><a class="reference internal" href="#yaml-basics">YAML Basics</a></li>
</ul>
</li>
</ul>
</span>
</li>
<li><a href="modules.html"
title="previous chapter">&laquo; Ansible Modules</a></li>
<li><a href="playbooks.html"
title="next chapter">Playbooks &raquo;</a></li>
</ul>
<ul class="nav secondary-nav">
<form class="pull-left" action="search.html" method="get">
<input type="text" name="q" placeholder="Search" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</ul>
</div>
</div>
</div>
<div class="container">
<div class="section" id="yaml-format">
<h1>YAML Format<a class="headerlink" href="#yaml-format" title="Permalink to this headline"></a></h1>
<p>This page provides a basic overview of correct YAML syntax, which is how Ansible
@ -125,66 +222,16 @@ languages:
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">YAML Format</a><ul>
<li><a class="reference internal" href="#yaml-basics">YAML Basics</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="modules.html"
title="previous chapter">Ansible Modules</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="playbooks.html"
title="next chapter">Playbooks: Ansible for Deployment, Configuration Management, and Orchestration</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="_sources/YAMLScripts.txt"
rel="nofollow">Show Source</a></li>
</ul>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="playbooks.html" title="Playbooks: Ansible for Deployment, Configuration Management, and Orchestration"
>next</a> |</li>
<li class="right" >
<a href="modules.html" title="Ansible Modules"
>previous</a> |</li>
<li><a href="index.html">Ansible v0.0.1 documentation</a> &raquo;</li>
</ul>
</div>
<div class="footer">
&copy; Copyright 2012 Michael DeHaan.
Last updated on Mar 09, 2012.
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.0.8.
</div>
<footer class="footer">
<div class="container">
<p class="pull-right"><a href="#">Back to top</a></p>
<p>
&copy; Copyright 2012 Michael DeHaan.<br/>
Last updated on Mar 09, 2012.<br/>
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.0.7.<br/>
</p>
</div>
</footer>
</body>
</html>

View file

@ -1,3 +1,5 @@
.. _patterns:
The Inventory File, Patterns, and Groups
========================================
@ -43,16 +45,17 @@ It is also possible to address specific hosts::
one.example.com:two.example.com
The following patterns address one or more groups, which are denoted with the bracket
headers in the inventory file::
The following patterns address one or more groups, which are denoted
with the bracket headers in the inventory file::
webservers
webservers:dbservers
Individual hosts, but not groups, can also be referenced using wildcards:
Individual hosts, but not groups, can also be referenced using
wildcards::
*.example.com
*.com
*.example.com
*.com
It's also ok to mix wildcard patterns and groups at the same time::

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@ -1,5 +1,5 @@
Playbooks: Ansible for Deployment, Configuration Management, and Orchestration
==============================================================================
Playbooks
=========
.. seealso::
@ -11,21 +11,28 @@ Playbooks: Ansible for Deployment, Configuration Management, and Orchestration
Learn about how to select hosts
Playbooks are a completely different way to use ansible and are particularly awesome.
Playbooks are a completely different way to use ansible and are
particularly awesome.
They are the basis for a really simple configuration management and multi-machine deployment system, unlike any that already exist, and one that is very well suited to deploying complex applications.
They are the basis for a really simple configuration management and
multi-machine deployment system, unlike any that already exist, and
one that is very well suited to deploying complex applications.
While you might run the main /usr/bin/ansible program for ad-hoc tasks, playbooks are more likely to be kept in source control and used to push out your configuration or assure the configurations of your remote systems are in spec.
While you might run the main ``/usr/bin/ansible`` program for ad-hoc
tasks, playbooks are more likely to be kept in source control and used
to push out your configuration or assure the configurations of your
remote systems are in spec.
Playbook Example
````````````````
Playbooks are expressed in YAML format and have a minimum of syntax. Each playbook is composed
of one or more 'plays' in a list. By composing a playbook of multiple 'plays', it is possible
to orchestrate multi-machine deployments, running certain steps on all machines in
the webservers group, then certain steps on the database server group, then more commands
back on the webservers group, etc::
Playbooks are expressed in YAML format and have a minimum of syntax.
Each playbook is composed of one or more 'plays' in a list. By
composing a playbook of multiple 'plays', it is possible to
orchestrate multi-machine deployments, running certain steps on all
machines in the webservers group, then certain steps on the database
server group, then more commands back on the webservers group, etc::
---
- hosts: webservers
@ -47,21 +54,25 @@ back on the webservers group, etc::
Hosts line
``````````
The hosts line is a list of one or more groups or host patterns, seperated by colons, asdescribed in the 'patterns' documentation. This is just like the first parameter to /usr/bin/ansible.
The hosts line is a list of one or more groups or host patterns,
seperated by colons, asdescribed in the :ref:`patterns` documentation.
This is just like the first parameter to ``/usr/bin/ansible``.
Vars section
````````````
A list of variables and values that can be used in the plays. These can be used in templates
or 'action' lines and are dereferenced using ```jinja2``` syntax like this::
A list of variables and values that can be used in the plays. These
can be used in templates or 'action' lines and are dereferenced using
```jinja2``` syntax like this::
{{ varname }}
Further, if there are discovered variables about the system (say, if facter or ohai were
installed) these variables bubble up back into the playbook, and can be used on each
system just like explicitly set variables. Facter variables are prefixed with 'facter_'
and Ohai variables are prefixed with 'ohai_'. So for instance, if I wanted to write the
hostname into the /etc/motd file, I could say::
Further, if there are discovered variables about the system (say, if
facter or ohai were installed) these variables bubble up back into the
playbook, and can be used on each system just like explicitly set
variables. Facter variables are prefixed with ``facter_`` and Ohai
variables are prefixed with ``ohai_``. So for instance, if I wanted
to write the hostname into the /etc/motd file, I could say::
- name: write the motd
- action: template src=/srv/templates/motd.j2 dest=/etc/motd
@ -75,27 +86,32 @@ But we're getting ahead of ourselves. Let's talk about tasks.
Tasks list
``````````
Each play contains a list of tasks. Tasks are executed in order, one at a time, against
all machines matched by the play's host pattern, before moving on to the next task.
Each play contains a list of tasks. Tasks are executed in order, one
at a time, against all machines matched by the play's host pattern,
before moving on to the next task.
Hosts with failed tasks are taken out of the rotation for the entire playbook. If things fail,
simply correct the playbook file and rerun.
Hosts with failed tasks are taken out of the rotation for the entire
playbook. If things fail, simply correct the playbook file and rerun.
Modules other than command are idempotent, meaning if you run them again, they will make the
changes they are told to make to bring the system to the desired state.
Modules other than command are idempotent, meaning if you run them
again, they will make the changes they are told to make to bring the
system to the desired state.
Task name and action
`````````````````````
Every task must have a name, which is included in the output from running the playbook.
Every task must have a name, which is included in the output from
running the playbook.
The action line is the name of an ansible module followed by parameters. Usually these
are expressed in key=value form, except for the command module, which looks just like a Linux/Unix
command line. See the module documentation for more info.
The action line is the name of an ansible module followed by
parameters. Usually these are expressed in ``key=value`` form, except
for the command module, which looks just like a Linux/Unix command
line. See the module documentation for more info.
Variables, as mentioned above, can be used in action lines. So if, hypothetically, you wanted
to make a directory on each system named after the hostname ... yeah, that's I know silly ... you could
do it like so::
Variables, as mentioned above, can be used in action lines. So if,
hypothetically, you wanted to make a directory on each system named
after the hostname ... yeah, that's I know silly ... you could do it
like so::
- name: make a directory
- action: mkdir /tmp/{{ facter_hostname }}
@ -103,44 +119,49 @@ do it like so::
Notify statements
`````````````````
Nearly all modules are written to be 'idempotent' and can signal when they have affected a change
on the remote system. If a notify statement is used, the named handler will be run against
each system where a change was effected, but NOT on systems where no change occurred. This happens
after all of the tasks are run. For example, if notifying Apache and potentially replacing lots of
configuration files, you could have Apache restart just once, at the end of a run. If you need
Apache restarted in the middle of a run, you could just make a task for it, no harm done. Notifiers
are optional.
Nearly all modules are written to be 'idempotent' and can signal when
they have affected a change on the remote system. If a notify
statement is used, the named handler will be run against each system
where a change was effected, but NOT on systems where no change
occurred. This happens after all of the tasks are run. For example,
if notifying Apache and potentially replacing lots of configuration
files, you could have Apache restart just once, at the end of a run.
If you need Apache restarted in the middle of a run, you could just
make a task for it, no harm done. Notifiers are optional.
Handlers
````````
Handlers are lists of tasks, not really any different from regular tasks, that are referenced
by name. Handlers are what notifiers notify. If nothing notifies a handler, it will not run.
Regardless of how many things notify a handler, it will run only once, after all of the tasks
complete in a particular play.
Handlers are lists of tasks, not really any different from regular
tasks, that are referenced by name. Handlers are what notifiers
notify. If nothing notifies a handler, it will not run. Regardless
of how many things notify a handler, it will run only once, after all
of the tasks complete in a particular play.
Includes
````````
Not all tasks have to be listed directly in the main file. An include file can contain
a list of tasks (in YAML) as well, optionally passing extra variables into the file.
Variables passed in can be deferenced like this (assume a variable named 'user')::
Not all tasks have to be listed directly in the main file. An include
file can contain a list of tasks (in YAML) as well, optionally passing
extra variables into the file. Variables passed in can be deferenced
like this (assume a variable named 'user')::
{{ user }}
For instance, if deploying multiple wordpress instances, I could contain all of my tasks
in a wordpress.yml file, and use it like so::
For instance, if deploying multiple wordpress instances, I could
contain all of my tasks in a wordpress.yml file, and use it like so::
- tasks:
- include: wordpress.yml user=timmy
- include: wordpress.yml user=alice
- include: wordpress.yml user=bob
In addition to the explicitly passed in parameters, all variables from the vars section
are also available.
In addition to the explicitly passed in parameters, all variables from
the vars section are also available.
The format of an included list of tasks or handlers looks just like a flat list of tasks. Here
is an example of what base.yml might look like::
The format of an included list of tasks or handlers looks just like a
flat list of tasks. Here is an example of what base.yml might look
like::
---
- name: no selinux
@ -150,18 +171,20 @@ is an example of what base.yml might look like::
- name: this is just to show variables work here, favcolor={{ favcolor }}
action: command /bin/true
As you can see above, variables in include files work just like they do in the main file.
Including a variable in the name of a task is a contrived example, you could also
pass them to the action command line or use them inside a template file.
As you can see above, variables in include files work just like they
do in the main file. Including a variable in the name of a task is a
contrived example, you could also pass them to the action command line
or use them inside a template file.
Note that include statements are only usable from the top level playbook file.
At this time, includes can not include other includes.
Note that include statements are only usable from the top level
playbook file. At this time, includes can not include other includes.
Using Includes To Assign Classes of Systems
```````````````````````````````````````````
Include files are best used to reuse logic between playbooks. You could imagine
a playbook describing your entire infrastructure like this::
Include files are best used to reuse logic between playbooks. You
could imagine a playbook describing your entire infrastructure like
this::
---
- hosts: atlanta-webservers
@ -181,21 +204,23 @@ a playbook describing your entire infrastructure like this::
handlers:
- include: generic-handlers.yml
There is one (or more) play defined for each group of systems, and each play maps
each group includes one or more 'class definitions' telling the systems what they
are supposed to do or be.
There is one (or more) play defined for each group of systems, and
each play maps each group includes one or more 'class definitions'
telling the systems what they are supposed to do or be.
Using a common handlers file could allow one task in 'webservers' to define 'restart apache',
and it could be reused between multiple plays.
Using a common handlers file could allow one task in 'webservers' to
define 'restart apache', and it could be reused between multiple
plays.
Variables like 'database' above can be used in templates referenced from the
configuration file to generate machine specific variables.
Variables like 'database' above can be used in templates referenced
from the configuration file to generate machine specific variables.
Asynchronous Actions and Polling
````````````````````````````````
(Information on this feature is pending)
Executing A Playbook
````````````````````

View file

@ -79,14 +79,6 @@ div.sphinxsidebar input {
font-size: 1em;
}
div.sphinxsidebar input[type="text"] {
width: 170px;
}
div.sphinxsidebar input[type="submit"] {
width: 30px;
}
img {
border: 0;
}
@ -244,6 +236,7 @@ img.align-center, .figure.align-center, object.align-center {
}
.align-center {
clear: both;
text-align: center;
}

55
html/_static/bootstrap-dropdown.js vendored Normal file
View file

@ -0,0 +1,55 @@
/* ============================================================
* bootstrap-dropdown.js v1.4.0
* http://twitter.github.com/bootstrap/javascript.html#dropdown
* ============================================================
* Copyright 2011 Twitter, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================ */
!function( $ ){
"use strict"
/* DROPDOWN PLUGIN DEFINITION
* ========================== */
$.fn.dropdown = function ( selector ) {
return this.each(function () {
$(this).delegate(selector || d, 'click', function (e) {
var li = $(this).parent('li')
, isActive = li.hasClass('open')
clearMenus()
!isActive && li.toggleClass('open')
return false
})
})
}
/* APPLY TO STANDARD DROPDOWN ELEMENTS
* =================================== */
var d = 'a.menu, .dropdown-toggle'
function clearMenus() {
$(d).parent('li').removeClass('open')
}
$(function () {
$('html').bind("click", clearMenus)
$('body').dropdown( '[data-dropdown] a.menu, [data-dropdown] .dropdown-toggle' )
})
}( window.jQuery || window.ender );

107
html/_static/bootstrap-scrollspy.js vendored Normal file
View file

@ -0,0 +1,107 @@
/* =============================================================
* bootstrap-scrollspy.js v1.4.0
* http://twitter.github.com/bootstrap/javascript.html#scrollspy
* =============================================================
* Copyright 2011 Twitter, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================== */
!function ( $ ) {
"use strict"
var $window = $(window)
function ScrollSpy( topbar, selector ) {
var processScroll = $.proxy(this.processScroll, this)
this.$topbar = $(topbar)
this.selector = selector || 'li > a'
this.refresh()
this.$topbar.delegate(this.selector, 'click', processScroll)
$window.scroll(processScroll)
this.processScroll()
}
ScrollSpy.prototype = {
refresh: function () {
this.targets = this.$topbar.find(this.selector).map(function () {
var href = $(this).attr('href')
return /^#\w/.test(href) && $(href).length ? href : null
})
this.offsets = $.map(this.targets, function (id) {
return $(id).offset().top
})
}
, processScroll: function () {
var scrollTop = $window.scrollTop() + 10
, offsets = this.offsets
, targets = this.targets
, activeTarget = this.activeTarget
, i
for (i = offsets.length; i--;) {
activeTarget != targets[i]
&& scrollTop >= offsets[i]
&& (!offsets[i + 1] || scrollTop <= offsets[i + 1])
&& this.activateButton( targets[i] )
}
}
, activateButton: function (target) {
this.activeTarget = target
this.$topbar
.find(this.selector).parent('.active')
.removeClass('active')
this.$topbar
.find(this.selector + '[href="' + target + '"]')
.parent('li')
.addClass('active')
}
}
/* SCROLLSPY PLUGIN DEFINITION
* =========================== */
$.fn.scrollSpy = function( options ) {
var scrollspy = this.data('scrollspy')
if (!scrollspy) {
return this.each(function () {
$(this).data('scrollspy', new ScrollSpy( this, options ))
})
}
if ( options === true ) {
return scrollspy
}
if ( typeof options == 'string' ) {
scrollspy[options]()
}
return this
}
$(document).ready(function () {
$('body').scrollSpy('[data-scrollspy] li > a')
})
}( window.jQuery || window.ender );

15
html/_static/bootstrap-sphinx.css vendored Normal file
View file

@ -0,0 +1,15 @@
/*
* bootstrap-sphinx.css
* ~~~~~~~~~~~~~~~~~~~~
*
* Sphinx stylesheet -- Twitter Bootstrap theme.
*/
body {
padding-top: 42px;
}
div.documentwrapper {
float: left;
width: 100%;
}

2467
html/_static/bootstrap.css vendored Normal file

File diff suppressed because it is too large Load diff

View file

@ -363,13 +363,10 @@ var Search = {
var fullname = (prefix ? prefix + '.' : '') + name;
if (fullname.toLowerCase().indexOf(object) > -1) {
match = objects[prefix][name];
descr = objnames[match[1]][2] + _(', in ') + titles[match[0]];
anchor = match[3];
if (anchor == '')
anchor = fullname;
else if (anchor == '-')
anchor = objnames[match[1]][1] + '-' + fullname;
result = [filenames[match[0]], fullname, '#'+anchor, descr];
descr = objnames[match[1]] + _(', in ') + titles[match[0]];
// XXX the generated anchors are not generally correct
// XXX there may be custom prefixes
result = [filenames[match[0]], fullname, '#'+fullname, descr];
switch (match[2]) {
case 1: objectResults.push(result); break;
case 0: importantResults.push(result); break;
@ -492,7 +489,7 @@ var Search = {
listItem.slideDown(5, function() {
displayNextItem();
});
}, "text");
});
} else {
// no source available, just display title
Search.output.append(listItem);

View file

@ -1,5 +1,4 @@
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@ -10,44 +9,142 @@
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};
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var patchToc = function ($span, minLevel) {
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<p>The Python API is very powerful, and is how the ansible CLI and ansible-playbook
@ -118,66 +215,16 @@ command line tools <tt class="docutils literal"><span class="pre">ansible</span>
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@ -58,7 +159,7 @@ using <cite>/usr/bin/ansible-playbook</cite> &#8211; the concepts port over dire
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@ -131,7 +234,7 @@ short &amp; simple, and the source will be blindingly obvious.</p>
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@ -168,65 +271,16 @@ IBM, Motorola, Red Hat&#8217;s Emerging Technologies Group, Puppet Labs, and rPa
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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-modules</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible-modules" lang="en"><a id="id373277"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-modules — stock modules shipped with ansible</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p>Ansible ships with a number of modules that can be executed directly on remote hosts or through
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-modules</title><link rel="stylesheet" type="text/css" href="./docbook-xsl.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /></head><body><div xml:lang="en" class="refentry" title="ansible-modules" lang="en"><a id="id475130"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-modules — stock modules shipped with ansible</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p>Ansible ships with a number of modules that can be executed directly on remote hosts or through
ansible playbooks.</p></div><div class="refsect1" title="IDEMPOTENCE"><a id="_idempotence"></a><h2>IDEMPOTENCE</h2><p>Most modules other than command are idempotent, meaning they will seek to avoid changes
unless a change needs to be made. When using ansible playbooks, these modules can
trigger change events, as described in <span class="strong"><strong>ansible-playbooks</strong></span>(5).</p><p>Unless otherwise noted, all modules support change hooks.</p></div><div class="refsect1" title="command"><a id="_command"></a><h2>command</h2><p>The command module takes the command name followed by a list of arguments, space delimited.

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-modules</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible-modules" lang="en"><a id="id303952"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-playbook — format and function of an ansible playbook file</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p>Ansible ships with <span class="emphasis"><em>ansible-playbook</em></span>, a tool for running playbooks.
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-modules</title><link rel="stylesheet" type="text/css" href="./docbook-xsl.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /></head><body><div xml:lang="en" class="refentry" title="ansible-modules" lang="en"><a id="id507830"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-playbook — format and function of an ansible playbook file</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p>Ansible ships with <span class="emphasis"><em>ansible-playbook</em></span>, a tool for running playbooks.
Playbooks can represent frequent tasks, desired system configurations,
or deployment processes.</p></div><div class="refsect1" title="FORMAT"><a id="_format"></a><h2>FORMAT</h2><p>Playbooks are written in YAML.</p></div><div class="refsect1" title="EXAMPLE"><a id="_example"></a><h2>EXAMPLE</h2><p>See:</p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem">
<a class="ulink" href="https://github.com/mpdehaan/ansible/blob/master/examples/playbook.yml" target="_top">https://github.com/mpdehaan/ansible/blob/master/examples/playbook.yml</a>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible" lang="en"><a id="id547970"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible — run a command somewhere else</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible &lt;host-pattern&gt; [-f forks] [-m module_name] [-a args]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible</strong></span> is an extra-simple tool/framework/API for doing 'remote things' over
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible</title><link rel="stylesheet" type="text/css" href="./docbook-xsl.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.76.1" /></head><body><div xml:lang="en" class="refentry" title="ansible" lang="en"><a id="id547391"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible — run a command somewhere else</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible &lt;host-pattern&gt; [-f forks] [-m module_name] [-a args]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible</strong></span> is an extra-simple tool/framework/API for doing 'remote things' over
SSH.</p></div><div class="refsect1" title="ARGUMENTS"><a id="_arguments"></a><h2>ARGUMENTS</h2><div class="variablelist"><dl><dt><span class="term">
<span class="strong"><strong>host-pattern</strong></span>
</span></dt><dd>

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@ -57,7 +163,7 @@ ansible playbooks.</p>
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@ -192,75 +298,16 @@ the command line, passing them arguments just like they would be passed with ans
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<h1>The Inventory File, Patterns, and Groups<a class="headerlink" href="#the-inventory-file-patterns-and-groups" title="Permalink to this headline"></a></h1>
<span id="patterns"></span><h1>The Inventory File, Patterns, and Groups<a class="headerlink" href="#the-inventory-file-patterns-and-groups" title="Permalink to this headline"></a></h1>
<p>How to select hosts you wish to manage</p>
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@ -88,15 +186,16 @@ which defaults to /etc/ansible/hosts, and looks like this:</p>
<div class="highlight-python"><pre>one.example.com
one.example.com:two.example.com</pre>
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<p>The following patterns address one or more groups, which are denoted with the bracket
headers in the inventory file:</p>
<p>The following patterns address one or more groups, which are denoted
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<div class="highlight-python"><pre>webservers
webservers:dbservers</pre>
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<p>Individual hosts, but not groups, can also be referenced using wildcards:</p>
<blockquote>
<div><a href="#id1"><span class="problematic" id="id2">*</span></a>.example.com
<a href="#id3"><span class="problematic" id="id4">*</span></a>.com</div></blockquote>
<p>Individual hosts, but not groups, can also be referenced using
wildcards:</p>
<div class="highlight-python"><pre>*.example.com
*.com</pre>
</div>
<p>It&#8217;s also ok to mix wildcard patterns and groups at the same time:</p>
<div class="highlight-python"><pre>one*.com:dbservers</pre>
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@ -105,67 +204,16 @@ webservers:dbservers</pre>
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<li><a class="reference internal" href="#vars-section">Vars section</a></li>
<li><a class="reference internal" href="#tasks-list">Tasks list</a></li>
<li><a class="reference internal" href="#task-name-and-action">Task name and action</a></li>
<li><a class="reference internal" href="#notify-statements">Notify statements</a></li>
<li><a class="reference internal" href="#handlers">Handlers</a></li>
<li><a class="reference internal" href="#includes">Includes</a></li>
<li><a class="reference internal" href="#using-includes-to-assign-classes-of-systems">Using Includes To Assign Classes of Systems</a></li>
<li><a class="reference internal" href="#asynchronous-actions-and-polling">Asynchronous Actions and Polling</a></li>
<li><a class="reference internal" href="#executing-a-playbook">Executing A Playbook</a></li>
</ul>
</li>
</ul>
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<div class="section" id="playbooks-ansible-for-deployment-configuration-management-and-orchestration">
<h1>Playbooks: Ansible for Deployment, Configuration Management, and Orchestration<a class="headerlink" href="#playbooks-ansible-for-deployment-configuration-management-and-orchestration" title="Permalink to this headline"></a></h1>
<li><a href="YAMLScripts.html"
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title="next chapter">Using the Python API &raquo;</a></li>
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<div class="section" id="playbooks">
<h1>Playbooks<a class="headerlink" href="#playbooks" title="Permalink to this headline"></a></h1>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<dl class="last docutils">
@ -61,16 +168,23 @@
<dd>Learn about how to select hosts</dd>
</dl>
</div>
<p>Playbooks are a completely different way to use ansible and are particularly awesome.</p>
<p>They are the basis for a really simple configuration management and multi-machine deployment system, unlike any that already exist, and one that is very well suited to deploying complex applications.</p>
<p>While you might run the main /usr/bin/ansible program for ad-hoc tasks, playbooks are more likely to be kept in source control and used to push out your configuration or assure the configurations of your remote systems are in spec.</p>
<p>Playbooks are a completely different way to use ansible and are
particularly awesome.</p>
<p>They are the basis for a really simple configuration management and
multi-machine deployment system, unlike any that already exist, and
one that is very well suited to deploying complex applications.</p>
<p>While you might run the main /usr/bin/ansible program for ad-hoc
tasks, playbooks are more likely to be kept in source control and used
to push out your configuration or assure the configurations of your
remote systems are in spec.</p>
<div class="section" id="playbook-example">
<h2>Playbook Example<a class="headerlink" href="#playbook-example" title="Permalink to this headline"></a></h2>
<p>Playbooks are expressed in YAML format and have a minimum of syntax. Each playbook is composed
of one or more &#8216;plays&#8217; in a list. By composing a playbook of multiple &#8216;plays&#8217;, it is possible
to orchestrate multi-machine deployments, running certain steps on all machines in
the webservers group, then certain steps on the database server group, then more commands
back on the webservers group, etc:</p>
<p>Playbooks are expressed in YAML format and have a minimum of syntax.
Each playbook is composed of one or more &#8216;plays&#8217; in a list. By
composing a playbook of multiple &#8216;plays&#8217;, it is possible to
orchestrate multi-machine deployments, running certain steps on all
machines in the webservers group, then certain steps on the database
server group, then more commands back on the webservers group, etc:</p>
<div class="highlight-python"><pre>---
- hosts: webservers
vars:
@ -91,19 +205,25 @@ back on the webservers group, etc:</p>
</div>
<div class="section" id="hosts-line">
<h2>Hosts line<a class="headerlink" href="#hosts-line" title="Permalink to this headline"></a></h2>
<p>The hosts line is a list of one or more groups or host patterns, seperated by colons, asdescribed in the &#8216;patterns&#8217; documentation. This is just like the first parameter to /usr/bin/ansible.</p>
<p>The hosts line is a list of one or more groups or host patterns,
seperated by colons, as described in the <a class="reference internal" href="patterns.html#patterns"><em>The Inventory File, Patterns, and Groups</em></a>
documentation. This is just like the first parameter to
<cite>/usr/bin/ansible</cite>.</p>
</div>
<div class="section" id="vars-section">
<h2>Vars section<a class="headerlink" href="#vars-section" title="Permalink to this headline"></a></h2>
<p>A list of variables and values that can be used in the plays. These can be used in templates
or &#8216;action&#8217; lines and are dereferenced using <tt class="docutils literal"><span class="pre">`jinja2`</span></tt> syntax like this:</p>
<div class="highlight-python"><pre>{{ varname }}</pre>
<p>A list of variables and values that can be used in the plays. These
can be used in templates or &#8216;action&#8217; lines and are dereferenced using
<cite>jinja2</cite> syntax like this:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="p">{{</span> <span class="n">varname</span> <span class="p">}}</span>
</pre></div>
</div>
<p>Further, if there are discovered variables about the system (say, if facter or ohai were
installed) these variables bubble up back into the playbook, and can be used on each
system just like explicitly set variables. Facter variables are prefixed with &#8216;<a href="#id1"><span class="problematic" id="id2">facter_</span></a>&#8216;
and Ohai variables are prefixed with &#8216;<a href="#id3"><span class="problematic" id="id4">ohai_</span></a>&#8216;. So for instance, if I wanted to write the
hostname into the /etc/motd file, I could say:</p>
<p>Further, if there are discovered variables about the system (say, if
facter or ohai were installed) these variables bubble up back into the
playbook, and can be used on each system just like explicitly set
variables. Facter variables are prefixed with <tt class="docutils literal"><span class="pre">facter_</span></tt> and Ohai
variables are prefixed with <tt class="docutils literal"><span class="pre">ohai_</span></tt>. So for instance, if I wanted
to write the hostname into the /etc/motd file, I could say:</p>
<div class="highlight-python"><pre>- name: write the motd
- action: template src=/srv/templates/motd.j2 dest=/etc/motd</pre>
</div>
@ -114,61 +234,72 @@ hostname into the /etc/motd file, I could say:</p>
</div>
<div class="section" id="tasks-list">
<h2>Tasks list<a class="headerlink" href="#tasks-list" title="Permalink to this headline"></a></h2>
<p>Each play contains a list of tasks. Tasks are executed in order, one at a time, against
all machines matched by the play&#8217;s host pattern, before moving on to the next task.</p>
<p>Hosts with failed tasks are taken out of the rotation for the entire playbook. If things fail,
simply correct the playbook file and rerun.</p>
<p>Modules other than command are idempotent, meaning if you run them again, they will make the
changes they are told to make to bring the system to the desired state.</p>
<p>Each play contains a list of tasks. Tasks are executed in order, one
at a time, against all machines matched by the play&#8217;s host pattern,
before moving on to the next task.</p>
<p>Hosts with failed tasks are taken out of the rotation for the entire
playbook. If things fail, simply correct the playbook file and rerun.</p>
<p>Modules other than command are idempotent, meaning if you run them
again, they will make the changes they are told to make to bring the
system to the desired state.</p>
</div>
<div class="section" id="task-name-and-action">
<h2>Task name and action<a class="headerlink" href="#task-name-and-action" title="Permalink to this headline"></a></h2>
<p>Every task must have a name, which is included in the output from running the playbook.</p>
<p>The action line is the name of an ansible module followed by parameters. Usually these
are expressed in key=value form, except for the command module, which looks just like a Linux/Unix
command line. See the module documentation for more info.</p>
<p>Variables, as mentioned above, can be used in action lines. So if, hypothetically, you wanted
to make a directory on each system named after the hostname ... yeah, that&#8217;s I know silly ... you could
do it like so:</p>
<p>Every task must have a name, which is included in the output from
running the playbook.</p>
<p>The action line is the name of an ansible module followed by
parameters. Usually these are expressed in <tt class="docutils literal"><span class="pre">key=value</span></tt> form, except
for the command module, which looks just like a Linux/Unix command
line. See the module documentation for more info.</p>
<p>Variables, as mentioned above, can be used in action lines. So if,
hypothetically, you wanted to make a directory on each system named
after the hostname ... yeah, that&#8217;s I know silly ... you could do it
like so:</p>
<div class="highlight-python"><pre>- name: make a directory
- action: mkdir /tmp/{{ facter_hostname }}</pre>
</div>
</div>
<div class="section" id="notify-statements">
<h2>Notify statements<a class="headerlink" href="#notify-statements" title="Permalink to this headline"></a></h2>
<p>Nearly all modules are written to be &#8216;idempotent&#8217; and can signal when they have affected a change
on the remote system. If a notify statement is used, the named handler will be run against
each system where a change was effected, but NOT on systems where no change occurred. This happens
after all of the tasks are run. For example, if notifying Apache and potentially replacing lots of
configuration files, you could have Apache restart just once, at the end of a run. If you need
Apache restarted in the middle of a run, you could just make a task for it, no harm done. Notifiers
are optional.</p>
<p>Nearly all modules are written to be &#8216;idempotent&#8217; and can signal when
they have affected a change on the remote system. If a notify
statement is used, the named handler will be run against each system
where a change was effected, but NOT on systems where no change
occurred. This happens after all of the tasks are run. For example,
if notifying Apache and potentially replacing lots of configuration
files, you could have Apache restart just once, at the end of a run.
If you need Apache restarted in the middle of a run, you could just
make a task for it, no harm done. Notifiers are optional.</p>
</div>
<div class="section" id="handlers">
<h2>Handlers<a class="headerlink" href="#handlers" title="Permalink to this headline"></a></h2>
<p>Handlers are lists of tasks, not really any different from regular tasks, that are referenced
by name. Handlers are what notifiers notify. If nothing notifies a handler, it will not run.
Regardless of how many things notify a handler, it will run only once, after all of the tasks
complete in a particular play.</p>
<p>Handlers are lists of tasks, not really any different from regular
tasks, that are referenced by name. Handlers are what notifiers
notify. If nothing notifies a handler, it will not run. Regardless
of how many things notify a handler, it will run only once, after all
of the tasks complete in a particular play.</p>
</div>
<div class="section" id="includes">
<h2>Includes<a class="headerlink" href="#includes" title="Permalink to this headline"></a></h2>
<p>Not all tasks have to be listed directly in the main file. An include file can contain
a list of tasks (in YAML) as well, optionally passing extra variables into the file.
Variables passed in can be deferenced like this (assume a variable named &#8216;user&#8217;):</p>
<div class="highlight-python"><pre>{{ user }}</pre>
<p>Not all tasks have to be listed directly in the main file. An include
file can contain a list of tasks (in YAML) as well, optionally passing
extra variables into the file. Variables passed in can be deferenced
like this (assume a variable named &#8216;user&#8217;):</p>
<div class="highlight-python"><div class="highlight"><pre><span class="p">{{</span> <span class="n">user</span> <span class="p">}}</span>
</pre></div>
</div>
<p>For instance, if deploying multiple wordpress instances, I could contain all of my tasks
in a wordpress.yml file, and use it like so:</p>
<p>For instance, if deploying multiple wordpress instances, I could
contain all of my tasks in a wordpress.yml file, and use it like so:</p>
<div class="highlight-python"><pre>- tasks:
- include: wordpress.yml user=timmy
- include: wordpress.yml user=alice
- include: wordpress.yml user=bob</pre>
</div>
<p>In addition to the explicitly passed in parameters, all variables from the vars section
are also available.</p>
<p>The format of an included list of tasks or handlers looks just like a flat list of tasks. Here
is an example of what base.yml might look like:</p>
<p>In addition to the explicitly passed in parameters, all variables from
the vars section are also available.</p>
<p>The format of an included list of tasks or handlers looks just like a
flat list of tasks. Here is an example of what base.yml might look
like:</p>
<div class="highlight-python"><pre>---
- name: no selinux
action: command /usr/sbin/setenforce 0
@ -177,16 +308,18 @@ is an example of what base.yml might look like:</p>
- name: this is just to show variables work here, favcolor={{ favcolor }}
action: command /bin/true</pre>
</div>
<p>As you can see above, variables in include files work just like they do in the main file.
Including a variable in the name of a task is a contrived example, you could also
pass them to the action command line or use them inside a template file.</p>
<p>Note that include statements are only usable from the top level playbook file.
At this time, includes can not include other includes.</p>
<p>As you can see above, variables in include files work just like they
do in the main file. Including a variable in the name of a task is a
contrived example, you could also pass them to the action command line
or use them inside a template file.</p>
<p>Note that include statements are only usable from the top level
playbook file. At this time, includes can not include other includes.</p>
</div>
<div class="section" id="using-includes-to-assign-classes-of-systems">
<h2>Using Includes To Assign Classes of Systems<a class="headerlink" href="#using-includes-to-assign-classes-of-systems" title="Permalink to this headline"></a></h2>
<p>Include files are best used to reuse logic between playbooks. You could imagine
a playbook describing your entire infrastructure like this:</p>
<p>Include files are best used to reuse logic between playbooks. You
could imagine a playbook describing your entire infrastructure like
this:</p>
<div class="highlight-python"><pre>---
- hosts: atlanta-webservers
vars:
@ -205,13 +338,14 @@ a playbook describing your entire infrastructure like this:</p>
handlers:
- include: generic-handlers.yml</pre>
</div>
<p>There is one (or more) play defined for each group of systems, and each play maps
each group includes one or more &#8216;class definitions&#8217; telling the systems what they
are supposed to do or be.</p>
<p>Using a common handlers file could allow one task in &#8216;webservers&#8217; to define &#8216;restart apache&#8217;,
and it could be reused between multiple plays.</p>
<p>Variables like &#8216;database&#8217; above can be used in templates referenced from the
configuration file to generate machine specific variables.</p>
<p>There is one (or more) play defined for each group of systems, and
each play maps each group includes one or more &#8216;class definitions&#8217;
telling the systems what they are supposed to do or be.</p>
<p>Using a common handlers file could allow one task in &#8216;webservers&#8217; to
define &#8216;restart apache&#8217;, and it could be reused between multiple
plays.</p>
<p>Variables like &#8216;database&#8217; above can be used in templates referenced
from the configuration file to generate machine specific variables.</p>
</div>
<div class="section" id="asynchronous-actions-and-polling">
<h2>Asynchronous Actions and Polling<a class="headerlink" href="#asynchronous-actions-and-polling" title="Permalink to this headline"></a></h2>
@ -226,76 +360,16 @@ configuration file to generate machine specific variables.</p>
</div>
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<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Playbooks: Ansible for Deployment, Configuration Management, and Orchestration</a><ul>
<li><a class="reference internal" href="#playbook-example">Playbook Example</a></li>
<li><a class="reference internal" href="#hosts-line">Hosts line</a></li>
<li><a class="reference internal" href="#vars-section">Vars section</a></li>
<li><a class="reference internal" href="#tasks-list">Tasks list</a></li>
<li><a class="reference internal" href="#task-name-and-action">Task name and action</a></li>
<li><a class="reference internal" href="#notify-statements">Notify statements</a></li>
<li><a class="reference internal" href="#handlers">Handlers</a></li>
<li><a class="reference internal" href="#includes">Includes</a></li>
<li><a class="reference internal" href="#using-includes-to-assign-classes-of-systems">Using Includes To Assign Classes of Systems</a></li>
<li><a class="reference internal" href="#asynchronous-actions-and-polling">Asynchronous Actions and Polling</a></li>
<li><a class="reference internal" href="#executing-a-playbook">Executing A Playbook</a></li>
</ul>
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@ -1,3 +1,5 @@
.. _patterns:
The Inventory File, Patterns, and Groups
========================================
@ -43,16 +45,17 @@ It is also possible to address specific hosts::
one.example.com:two.example.com
The following patterns address one or more groups, which are denoted with the bracket
headers in the inventory file::
The following patterns address one or more groups, which are denoted
with the bracket headers in the inventory file::
webservers
webservers:dbservers
Individual hosts, but not groups, can also be referenced using wildcards:
Individual hosts, but not groups, can also be referenced using
wildcards::
*.example.com
*.com
*.example.com
*.com
It's also ok to mix wildcard patterns and groups at the same time::

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@ -1,5 +1,5 @@
Playbooks: Ansible for Deployment, Configuration Management, and Orchestration
==============================================================================
Playbooks
=========
.. seealso::
@ -11,21 +11,28 @@ Playbooks: Ansible for Deployment, Configuration Management, and Orchestration
Learn about how to select hosts
Playbooks are a completely different way to use ansible and are particularly awesome.
Playbooks are a completely different way to use ansible and are
particularly awesome.
They are the basis for a really simple configuration management and multi-machine deployment system, unlike any that already exist, and one that is very well suited to deploying complex applications.
They are the basis for a really simple configuration management and
multi-machine deployment system, unlike any that already exist, and
one that is very well suited to deploying complex applications.
While you might run the main /usr/bin/ansible program for ad-hoc tasks, playbooks are more likely to be kept in source control and used to push out your configuration or assure the configurations of your remote systems are in spec.
While you might run the main /usr/bin/ansible program for ad-hoc
tasks, playbooks are more likely to be kept in source control and used
to push out your configuration or assure the configurations of your
remote systems are in spec.
Playbook Example
````````````````
Playbooks are expressed in YAML format and have a minimum of syntax. Each playbook is composed
of one or more 'plays' in a list. By composing a playbook of multiple 'plays', it is possible
to orchestrate multi-machine deployments, running certain steps on all machines in
the webservers group, then certain steps on the database server group, then more commands
back on the webservers group, etc::
Playbooks are expressed in YAML format and have a minimum of syntax.
Each playbook is composed of one or more 'plays' in a list. By
composing a playbook of multiple 'plays', it is possible to
orchestrate multi-machine deployments, running certain steps on all
machines in the webservers group, then certain steps on the database
server group, then more commands back on the webservers group, etc::
---
- hosts: webservers
@ -47,21 +54,26 @@ back on the webservers group, etc::
Hosts line
``````````
The hosts line is a list of one or more groups or host patterns, seperated by colons, asdescribed in the 'patterns' documentation. This is just like the first parameter to /usr/bin/ansible.
The hosts line is a list of one or more groups or host patterns,
seperated by colons, as described in the :ref:`patterns`
documentation. This is just like the first parameter to
`/usr/bin/ansible`.
Vars section
````````````
A list of variables and values that can be used in the plays. These can be used in templates
or 'action' lines and are dereferenced using ```jinja2``` syntax like this::
A list of variables and values that can be used in the plays. These
can be used in templates or 'action' lines and are dereferenced using
`jinja2` syntax like this::
{{ varname }}
Further, if there are discovered variables about the system (say, if facter or ohai were
installed) these variables bubble up back into the playbook, and can be used on each
system just like explicitly set variables. Facter variables are prefixed with 'facter_'
and Ohai variables are prefixed with 'ohai_'. So for instance, if I wanted to write the
hostname into the /etc/motd file, I could say::
Further, if there are discovered variables about the system (say, if
facter or ohai were installed) these variables bubble up back into the
playbook, and can be used on each system just like explicitly set
variables. Facter variables are prefixed with ``facter_`` and Ohai
variables are prefixed with ``ohai_``. So for instance, if I wanted
to write the hostname into the /etc/motd file, I could say::
- name: write the motd
- action: template src=/srv/templates/motd.j2 dest=/etc/motd
@ -75,27 +87,32 @@ But we're getting ahead of ourselves. Let's talk about tasks.
Tasks list
``````````
Each play contains a list of tasks. Tasks are executed in order, one at a time, against
all machines matched by the play's host pattern, before moving on to the next task.
Each play contains a list of tasks. Tasks are executed in order, one
at a time, against all machines matched by the play's host pattern,
before moving on to the next task.
Hosts with failed tasks are taken out of the rotation for the entire playbook. If things fail,
simply correct the playbook file and rerun.
Hosts with failed tasks are taken out of the rotation for the entire
playbook. If things fail, simply correct the playbook file and rerun.
Modules other than command are idempotent, meaning if you run them again, they will make the
changes they are told to make to bring the system to the desired state.
Modules other than command are idempotent, meaning if you run them
again, they will make the changes they are told to make to bring the
system to the desired state.
Task name and action
`````````````````````
Every task must have a name, which is included in the output from running the playbook.
Every task must have a name, which is included in the output from
running the playbook.
The action line is the name of an ansible module followed by parameters. Usually these
are expressed in key=value form, except for the command module, which looks just like a Linux/Unix
command line. See the module documentation for more info.
The action line is the name of an ansible module followed by
parameters. Usually these are expressed in ``key=value`` form, except
for the command module, which looks just like a Linux/Unix command
line. See the module documentation for more info.
Variables, as mentioned above, can be used in action lines. So if, hypothetically, you wanted
to make a directory on each system named after the hostname ... yeah, that's I know silly ... you could
do it like so::
Variables, as mentioned above, can be used in action lines. So if,
hypothetically, you wanted to make a directory on each system named
after the hostname ... yeah, that's I know silly ... you could do it
like so::
- name: make a directory
- action: mkdir /tmp/{{ facter_hostname }}
@ -103,44 +120,49 @@ do it like so::
Notify statements
`````````````````
Nearly all modules are written to be 'idempotent' and can signal when they have affected a change
on the remote system. If a notify statement is used, the named handler will be run against
each system where a change was effected, but NOT on systems where no change occurred. This happens
after all of the tasks are run. For example, if notifying Apache and potentially replacing lots of
configuration files, you could have Apache restart just once, at the end of a run. If you need
Apache restarted in the middle of a run, you could just make a task for it, no harm done. Notifiers
are optional.
Nearly all modules are written to be 'idempotent' and can signal when
they have affected a change on the remote system. If a notify
statement is used, the named handler will be run against each system
where a change was effected, but NOT on systems where no change
occurred. This happens after all of the tasks are run. For example,
if notifying Apache and potentially replacing lots of configuration
files, you could have Apache restart just once, at the end of a run.
If you need Apache restarted in the middle of a run, you could just
make a task for it, no harm done. Notifiers are optional.
Handlers
````````
Handlers are lists of tasks, not really any different from regular tasks, that are referenced
by name. Handlers are what notifiers notify. If nothing notifies a handler, it will not run.
Regardless of how many things notify a handler, it will run only once, after all of the tasks
complete in a particular play.
Handlers are lists of tasks, not really any different from regular
tasks, that are referenced by name. Handlers are what notifiers
notify. If nothing notifies a handler, it will not run. Regardless
of how many things notify a handler, it will run only once, after all
of the tasks complete in a particular play.
Includes
````````
Not all tasks have to be listed directly in the main file. An include file can contain
a list of tasks (in YAML) as well, optionally passing extra variables into the file.
Variables passed in can be deferenced like this (assume a variable named 'user')::
Not all tasks have to be listed directly in the main file. An include
file can contain a list of tasks (in YAML) as well, optionally passing
extra variables into the file. Variables passed in can be deferenced
like this (assume a variable named 'user')::
{{ user }}
For instance, if deploying multiple wordpress instances, I could contain all of my tasks
in a wordpress.yml file, and use it like so::
For instance, if deploying multiple wordpress instances, I could
contain all of my tasks in a wordpress.yml file, and use it like so::
- tasks:
- include: wordpress.yml user=timmy
- include: wordpress.yml user=alice
- include: wordpress.yml user=bob
In addition to the explicitly passed in parameters, all variables from the vars section
are also available.
In addition to the explicitly passed in parameters, all variables from
the vars section are also available.
The format of an included list of tasks or handlers looks just like a flat list of tasks. Here
is an example of what base.yml might look like::
The format of an included list of tasks or handlers looks just like a
flat list of tasks. Here is an example of what base.yml might look
like::
---
- name: no selinux
@ -150,18 +172,20 @@ is an example of what base.yml might look like::
- name: this is just to show variables work here, favcolor={{ favcolor }}
action: command /bin/true
As you can see above, variables in include files work just like they do in the main file.
Including a variable in the name of a task is a contrived example, you could also
pass them to the action command line or use them inside a template file.
As you can see above, variables in include files work just like they
do in the main file. Including a variable in the name of a task is a
contrived example, you could also pass them to the action command line
or use them inside a template file.
Note that include statements are only usable from the top level playbook file.
At this time, includes can not include other includes.
Note that include statements are only usable from the top level
playbook file. At this time, includes can not include other includes.
Using Includes To Assign Classes of Systems
```````````````````````````````````````````
Include files are best used to reuse logic between playbooks. You could imagine
a playbook describing your entire infrastructure like this::
Include files are best used to reuse logic between playbooks. You
could imagine a playbook describing your entire infrastructure like
this::
---
- hosts: atlanta-webservers
@ -181,21 +205,23 @@ a playbook describing your entire infrastructure like this::
handlers:
- include: generic-handlers.yml
There is one (or more) play defined for each group of systems, and each play maps
each group includes one or more 'class definitions' telling the systems what they
are supposed to do or be.
There is one (or more) play defined for each group of systems, and
each play maps each group includes one or more 'class definitions'
telling the systems what they are supposed to do or be.
Using a common handlers file could allow one task in 'webservers' to define 'restart apache',
and it could be reused between multiple plays.
Using a common handlers file could allow one task in 'webservers' to
define 'restart apache', and it could be reused between multiple
plays.
Variables like 'database' above can be used in templates referenced from the
configuration file to generate machine specific variables.
Variables like 'database' above can be used in templates referenced
from the configuration file to generate machine specific variables.
Asynchronous Actions and Polling
````````````````````````````````
(Information on this feature is pending)
Executing A Playbook
````````````````````