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<div class="section" id="yaml-scripts">
<h1>YAML Scripts<a class="headerlink" href="#yaml-scripts" title="Permalink to this headline">¶</a></h1>
<p>This page provides a basic overview of correct YAML syntax.</p>
<div class="section" id="yaml-basics">
<h2>YAML Basics<a class="headerlink" href="#yaml-basics" title="Permalink to this headline">¶</a></h2>
<p>For <cite>ansible</cite>, every YAML script must be a list at it’s root-most
element. Each item in the list is a dictionary. These dictionaries
represent all the options you can use to write a <cite>ansible</cite> script. In
addition, all YAML files (regardless of their association with
<cite>ansible</cite> or not) should start with <tt class="docutils literal"><span class="pre">---</span></tt>.</p>
<p>In YAML a list can be represented in two ways. In one way all members
of a list are lines beginning at the same indentation level starting
with a <tt class="docutils literal"><span class="pre">-</span></tt> character:</p>
<div class="highlight-python"><pre>---
# A list of tasty fruits
- Apple
- Orange
- Strawberry
- Mango</pre>
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<p>In the second way a list is represented as comma separated elements
surrounded by square brackets. Newlines are permitted between
elements:</p>
<div class="highlight-python"><pre>---
# A list of tasty fruits
[apple, orange, banana, mango]</pre>
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<p>A dictionary is represented in a simple <tt class="docutils literal"><span class="pre">key:</span></tt> and <tt class="docutils literal"><span class="pre">value</span></tt> form:</p>
<div class="highlight-python"><pre>---
# An employee record
name: John Eckersberg
job: Developer
skill: Elite</pre>
</div>
<p>Like lists, dictionaries can be represented in an abbreviated form:</p>
<div class="highlight-python"><pre>---
# An employee record
{name: John Eckersberg, job: Developer, skill: Elite}</pre>
</div>
<p id="truthiness">You can specify a boolean value (true/false) in several forms:</p>
<div class="highlight-python"><pre>---
knows_oop: True
likes_emacs: TRUE
uses_cvs: false</pre>
</div>
<p>Finally, you can combine these data structures:</p>
<div class="highlight-python"><pre>---
# An employee record
name: John Eckersberg
job: Developer
skill: Elite
employed: True
foods:
- Apple
- Orange
- Strawberry
- Mango
languages:
ruby: Elite
python: Elite
dotnet: Lame</pre>
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<p>That’s all you really need to know about YAML to get started writing
<cite>Ansible</cite> scripts.</p>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<dl class="last docutils">
<dt><a class="reference external" href="http://yamllint.com/">YAMLLint</a></dt>
<dd>YAML Lint gets the lint out of your YAML</dd>
</dl>
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<li><a class="reference internal" href="#">YAML Scripts</a><ul>
<li><a class="reference internal" href="#yaml-basics">YAML Basics</a></li>
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Last updated on Mar 07, 2012.
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