ansible/gettingstarted.html
2012-03-18 13:03:45 -04:00

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<li class="toctree-l1 current"><a class="current reference internal" href="">Downloads &amp; Getting Started</a></li>
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<li><a class="reference internal" href="#">Downloads &amp; Getting Started</a><ul>
<li><a class="reference internal" href="#requirements">Requirements</a></li>
<li><a class="reference internal" href="#getting-ansible">Getting Ansible</a><ul>
<li><a class="reference internal" href="#running-from-checkout">Running From Checkout</a></li>
<li><a class="reference internal" href="#make-install">Make Install</a></li>
<li><a class="reference internal" href="#via-rpm">Via RPM</a></li>
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<div class="section" id="downloads-getting-started">
<h1>Downloads &amp; Getting Started<a class="headerlink" href="#downloads-getting-started" title="Permalink to this headline"></a></h1>
<div class="section" id="requirements">
<h2>Requirements<a class="headerlink" href="#requirements" title="Permalink to this headline"></a></h2>
<p>Requirements for Ansible are extremely minimal.</p>
<p>If you are running python 2.6 on the <strong>overlord</strong> machine (the machine
that you&#8217;ll be talking to the remote machines from), you will need:</p>
<ul class="simple">
<li><tt class="docutils literal"><span class="pre">paramiko</span></tt></li>
<li><tt class="docutils literal"><span class="pre">PyYAML</span></tt></li>
<li><tt class="docutils literal"><span class="pre">python-jinja2</span></tt> (for playbooks)</li>
</ul>
<p>If you are running less than Python 2.6, you will also need:</p>
<ul class="simple">
<li>The Python 2.4 or 2.5 backport of the <tt class="docutils literal"><span class="pre">multiprocessing</span></tt> module (<a class="reference external" href="http://code.google.com/p/python-multiprocessing/wiki/Install">see here</a>)</li>
<li><tt class="docutils literal"><span class="pre">python-simplejson</span></tt></li>
</ul>
<p>On the managed nodes, to use templates, you will also need:</p>
<ul class="simple">
<li><tt class="docutils literal"><span class="pre">python-jinja2</span></tt> (you can easily install this using ansible)</li>
</ul>
</div>
<div class="section" id="getting-ansible">
<h2>Getting Ansible<a class="headerlink" href="#getting-ansible" title="Permalink to this headline"></a></h2>
<p>As the project is still pretty new, you will probably want to clone
the git checkout, so you can keep up with all of the latest features,
and also easily contribute back to the project (if you want).</p>
<p>Instructions for installing from source are below.</p>
<p>You may also wish to follow the <a class="reference external" href="https://github.com/ansible/ansible">Github project</a> if
you have a github account. This is also where we keep the issue tracker for sharing
bugs and feature ideas.</p>
<div class="section" id="running-from-checkout">
<h3>Running From Checkout<a class="headerlink" href="#running-from-checkout" title="Permalink to this headline"></a></h3>
<p>Ansible is trivially easy to run from a checkout, root permissions are not required
to use it:</p>
<div class="highlight-python"><pre>$ git clone git://github.com/ansible/ansible.git
$ cd ./ansible
$ source ./hacking/env-setup</pre>
</div>
<p>You can optionally specify an inventory file (see doc:<cite>patterns</cite>) other than /etc/ansible/hosts:</p>
<div class="highlight-python"><pre>$ cat "127.0.0.1" &gt; ~/ansible_hosts
$ export ANSIBLE_HOSTS=~/ansible_hosts</pre>
</div>
<p>Now let&#8217;s test things:</p>
<div class="highlight-python"><pre>$ ansible all -m ping --ask-pass</pre>
</div>
</div>
<div class="section" id="make-install">
<h3>Make Install<a class="headerlink" href="#make-install" title="Permalink to this headline"></a></h3>
<p>If you are not working from a distribution where Ansible is packaged yet, you can install Ansible
using &#8220;make install&#8221;. This is done through <cite>python-distutils</cite>:</p>
<div class="highlight-python"><pre>$ git clone git://github.com/ansible/ansible.git
$ cd ./ansible
$ sudo make install</pre>
</div>
</div>
<div class="section" id="via-rpm">
<h3>Via RPM<a class="headerlink" href="#via-rpm" title="Permalink to this headline"></a></h3>
<p>In the near future, pre-built packages will be available through your
distribution. Until that time, you can use the <tt class="docutils literal"><span class="pre">make</span> <span class="pre">rpm</span></tt> command to
build an RPM you can distribute and install:</p>
<div class="highlight-python"><pre>$ git clone git://github.com/ansible/ansible.git
$ cd ./ansible
$ make rpm
$ sudo rpm -Uvh ~/rpmbuild/RPMS/noarch/ansible-*.noarch.rpm</pre>
</div>
<p>Note that if you are tracking the upstream source (i.e. git), the RPM revision will not be
bumped with every source code change. To get around this, you can use
rpm <cite>-Uvh</cite> with <cite>&#8211;force</cite> when RPM tells you the package is still at the
same version. This is perfectly safe to do.</p>
</div>
<div class="section" id="other-package-distributions">
<h3>Other Package Distributions<a class="headerlink" href="#other-package-distributions" title="Permalink to this headline"></a></h3>
<p>If you would like to package Ansible for Debian/Ubuntu, Homebrew, or BSD,
please stop by the mailing list and say hi. We&#8217;d love to have that as well
and it shouldn&#8217;t be difficult and would be happy to help.</p>
</div>
<div class="section" id="tagged-releases">
<h3>Tagged Releases<a class="headerlink" href="#tagged-releases" title="Permalink to this headline"></a></h3>
<p>Tagged releases are available as tar.gz files from the Ansible github
project page:</p>
<ul class="simple">
<li><a class="reference external" href="https://github.com/ansible/ansible/downloads">Ansible/downloads</a></li>
</ul>
<p>At this point in Ansible&#8217;s development, running or building from checkout is preferred
if you want access to all of the latest modules and improvements.</p>
</div>
</div>
<div class="section" id="your-first-commands">
<h2>Your first commands<a class="headerlink" href="#your-first-commands" title="Permalink to this headline"></a></h2>
<p>Now that you&#8217;ve installed Ansible, it&#8217;s time to test it.</p>
<p>Edit (or create) /etc/ansible/hosts and put one or more remote systems in it, for
which you have your SSH key in <tt class="docutils literal"><span class="pre">authorized_keys</span></tt>:</p>
<div class="highlight-python"><pre>192.168.1.50
aserver.example.org
bserver.example.org</pre>
</div>
<p>Set up SSH agent to avoid retyping passwords:</p>
<div class="highlight-python"><pre>ssh-agent bash
ssh-add ~/.ssh/id_rsa</pre>
</div>
<p>Now ping all your nodes:</p>
<div class="highlight-python"><pre>ansible all -m ping</pre>
</div>
<p>Now run a live command on all of your nodes:</p>
<div class="highlight-python"><pre>ansible all -a "/bin/echo hello"</pre>
</div>
<p>Congratulations. You&#8217;ve just contacted your nodes with Ansible. It&#8217;s
now time to read some of the more real-world <a class="reference internal" href="examples.html"><em>Command Line Examples</em></a>, and explore
what you can do with different modules, as well as the Ansible
<a class="reference internal" href="playbooks.html"><em>Playbooks</em></a> language. Ansible is not just about running commands, it
also has powerful configuration management and deployment features. There&#8217;s more to
explore, but you already have a fully working infrastructure!</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>Command Line Examples</em></a></dt>
<dd>Examples of basic commands</dd>
<dt><a class="reference internal" href="playbooks.html"><em>Playbooks</em></a></dt>
<dd>Learning ansible&#8217;s configuration management language</dd>
<dt><a class="reference external" href="http://groups.google.com/group/ansible-project">Mailing List</a></dt>
<dd>Questions? Help? Ideas? Stop by the list on Google Groups</dd>
<dt><a class="reference external" href="http://irc.freenode.net">irc.freenode.net</a></dt>
<dd>#ansible IRC chat channel</dd>
</dl>
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&copy; Copyright 2012 Michael DeHaan.<br/>
Last updated on Mar 18, 2012.<br/>
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