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<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Patterns &mdash; Ansible v0.0.1 documentation</title>
<title>The Inventory File, Patterns, and Groups &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" />
<script type="text/javascript">
@ -48,18 +48,20 @@
<div class="bodywrapper">
<div class="body">
<div class="section" id="patterns">
<h1>Patterns<a class="headerlink" href="#patterns" title="Permalink to this headline"></a></h1>
<div class="section" id="the-inventory-file-patterns-and-groups">
<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>
<div class="admonition-see-also admonition seealso">
<p class="first admonition-title">See also</p>
<dl class="last docutils">
<dt><a class="reference internal" href="examples.html"><em>Examples</em></a></dt>
<dd>Examples of basic commands</dd>
<dt><a class="reference internal" href="playbooks.html"><em>Playbooks</em></a></dt>
<dt><a class="reference internal" href="playbooks.html"><em>Playbooks: Ansible for Deployment, Configuration Management, and Orchestration</em></a></dt>
<dd>Learning ansible&#8217;s configuration management language</dd>
</dl>
</div>
<div class="section" id="inventory-file-format">
<h2>Inventory File Format<a class="headerlink" href="#inventory-file-format" title="Permalink to this headline"></a></h2>
<p>Ansible works against multiple systems in your infrastructure at the
same time. It does this by selecting portions of systems listed in Ansible&#8217;s inventory file,
which defaults to /etc/ansible/hosts, and looks like this:</p>
@ -75,38 +77,30 @@ which defaults to /etc/ansible/hosts, and looks like this:</p>
<span class="n">three</span><span class="o">.</span><span class="n">example</span><span class="o">.</span><span class="n">com</span>
</pre></div>
</div>
<div class="section" id="targetting-all-systems">
<h2>Targetting All Systems<a class="headerlink" href="#targetting-all-systems" title="Permalink to this headline"></a></h2>
<p>The pattern &#8216;all&#8217; or &#8216;*&#8217; targets all systems in the inventory file.</p>
</div>
<div class="section" id="specific-hosts">
<h2>Specific Hosts<a class="headerlink" href="#specific-hosts" title="Permalink to this headline"></a></h2>
<p>It is possible to address specific hosts:</p>
<blockquote>
<div>one.example.com
one.example.com:two.example.com</div></blockquote>
<div class="section" id="selecting-targets">
<h2>Selecting Targets<a class="headerlink" href="#selecting-targets" title="Permalink to this headline"></a></h2>
<p>These patterns target all hosts in the inventory file:</p>
<div class="highlight-python"><pre>all
*</pre>
</div>
<div class="section" id="groups">
<h2>Groups<a class="headerlink" href="#groups" title="Permalink to this headline"></a></h2>
<p>The following patterns address one or more groups:</p>
<blockquote>
<div>webservers
webservers:dbservers</div></blockquote>
<p>There is also a magic group &#8216;ungrouped&#8217; which selects systems not in a group.</p>
<p>It is also possible to address specific hosts:</p>
<div class="highlight-python"><pre>one.example.com
one.example.com:two.example.com</pre>
</div>
<p>The following patterns address one or more groups, which are denoted with the bracket
headers in the inventory file:</p>
<div class="highlight-python"><pre>webservers
webservers:dbservers</pre>
</div>
<div class="section" id="wildcards">
<h2>Wildcards<a class="headerlink" href="#wildcards" title="Permalink to this headline"></a></h2>
<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>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>
</div>
<div class="section" id="mixing-things-up">
<h2>Mixing Things Up<a class="headerlink" href="#mixing-things-up" title="Permalink to this headline"></a></h2>
<p>Specific hosts, wildcards, and groups can all be mixed in the same pattern</p>
<blockquote>
<div>one*.com:dbservers</div></blockquote>
<p>It is not possible to target a host not in the inventory file.</p>
<p>NOTE: It is not possible to target a host not in the inventory file.</p>
</div>
</div>
@ -118,12 +112,9 @@ webservers:dbservers</div></blockquote>
<div class="sphinxsidebarwrapper">
<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Patterns</a><ul>
<li><a class="reference internal" href="#targetting-all-systems">Targetting All Systems</a></li>
<li><a class="reference internal" href="#specific-hosts">Specific Hosts</a></li>
<li><a class="reference internal" href="#groups">Groups</a></li>
<li><a class="reference internal" href="#wildcards">Wildcards</a></li>
<li><a class="reference internal" href="#mixing-things-up">Mixing Things Up</a></li>
<li><a class="reference internal" href="#">The Inventory File, Patterns, and Groups</a><ul>
<li><a class="reference internal" href="#inventory-file-format">Inventory File Format</a></li>
<li><a class="reference internal" href="#selecting-targets">Selecting Targets</a></li>
</ul>
</li>
</ul>