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Added some foreshadowing of CLI syntax to the patterns page.

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Michael DeHaan 2012-03-31 10:38:24 -04:00
parent 7a8397d60f
commit 1a926c69a1
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patterns.html
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@ -157,13 +157,12 @@ s.parentNode.insertBefore(ga, s);
<div class="section" id="the-inventory-file-patterns-and-groups">
<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 define and select hosts you wish to manage</p>
<div class="section" id="inventory-file-format">
<span id="inventoryformat"></span><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>
Ansible&#8217;s inventory file, which defaults to /etc/ansible/hosts.</p>
<div class="section" id="inventory-file-format">
<span id="inventoryformat"></span><h2>Inventory File Format<a class="headerlink" href="#inventory-file-format" title="Permalink to this headline"></a></h2>
<p>The format for /etc/ansible/hosts looks like this:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">mail</span><span class="o">.</span><span class="n">example</span><span class="o">.</span><span class="n">com</span>
<span class="p">[</span><span class="n">webservers</span><span class="p">]</span>
@ -181,7 +180,16 @@ but they are useful.</p>
</div>
<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>
<p>We&#8217;ll go over how to use the command line in <a class="reference internal" href="examples.html"><em>Command Line Examples</em></a> section, however, basically it looks like this:</p>
<div class="highlight-python"><pre>ansible &lt;pattern_goes_here&gt; -m &lt;module_name&gt; -a &lt;arguments&gt;</pre>
</div>
<p>Such as:</p>
<blockquote>
<div>ansible &lt;pattern_goes_here&gt; -m service -a &#8220;name=httpd state=running&#8221;</div></blockquote>
<p>Within <a class="reference internal" href="playbooks.html"><em>Playbooks</em></a>, these patterns can also be used, for even greater purposes.</p>
<p>Anyway, to use Ansible, you&#8217;ll first need to know how to tell Ansible which hosts in your inventory file to talk to.
This is done by designating particular host names or groups of hosts.</p>
<p>The following patterns target all hosts in the inventory file:</p>
<div class="highlight-python"><pre>all
*</pre>
</div>