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4.3.2
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<li class="toctree-l1"><a class="reference internal" href="cdist-intro.html">1. cdist - usable configuration management</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-why.html">2. Why should I use cdist?</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-os.html">3. Supported Operating Systems</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-install.html">4. How to install cdist</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-update.html">5. How to update cdist</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-support.html">6. Support</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-features.html">7. Features</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">8. Quickstart</a></li>
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<li class="toctree-l1"><a class="reference internal" href="man1/cdist.html">9. cdist(1)</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-bootstrap.html">10. Bootstrap</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-manifest.html">11. Manifest</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-type.html">12. cdist type</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-types.html">13. cdist types</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-messaging.html">15. Messaging</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-parallelization.html">16. Parallelization</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-stages.html">19. Execution stages</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-hacker.html">21. Hacking</a></li>
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<li class="toctree-l1"><a class="reference internal" href="cdist-troubleshooting.html">22. Troubleshooting</a></li>
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<div class="section" id="quickstart">
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<h1>8. Quickstart<a class="headerlink" href="#quickstart" title="Permalink to this headline">¶</a></h1>
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<p>This tutorial is aimed at people learning cdist and shows
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typical approaches as well as gives an easy start into
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the world of configuration management.</p>
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<p>For those who just want to configure a system with the
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cdist configuration management and do not need (or want)
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to understand everything.</p>
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<p>This tutorial assumes you are configuring <strong>localhost</strong>, because
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it is always available. Just replace <strong>localhost</strong> with your target
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host for real life usage.</p>
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<p>Cdist uses <strong>ssh</strong> for communication and transportation
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and usually logs into the <strong>target host</strong> as the
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<strong>root</strong> user. So you need to configure the <strong>ssh server</strong>
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of the target host to allow root logins: Edit
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the file <strong>/etc/ssh/sshd_config</strong> and add one of the following
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lines:</p>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="c1"># Allow login only via public key</span>
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<span class="n">PermitRootLogin</span> <span class="n">without</span><span class="o">-</span><span class="n">password</span>
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<span class="c1"># Allow login via password and public key</span>
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<span class="n">PermitRootLogin</span> <span class="n">yes</span>
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</pre></div>
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</div>
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<p>As cdist uses ssh intensively, it is recommended to setup authentication
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with public keys:</p>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="c1"># Generate pubkey pair as a normal user</span>
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<span class="n">ssh</span><span class="o">-</span><span class="n">keygen</span>
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<span class="c1"># Copy pubkey over to target host</span>
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<span class="n">ssh</span><span class="o">-</span><span class="n">copy</span><span class="o">-</span><span class="nb">id</span> <span class="n">root</span><span class="nd">@localhost</span>
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</pre></div>
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</div>
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<p>Have a look at ssh-agent(1) and ssh-add(1) on how to cache the password for
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your public key. Usually it looks like this:</p>
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<div class="highlight-default"><div class="highlight"><pre><span></span># Start agent and export variables
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eval `ssh-agent`
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# Add keys (requires password for every identity file)
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ssh-add
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</pre></div>
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</div>
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<p>At this point you should be able to <strong>ssh root@localhost</strong> without
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re-entering the password. If something failed until here, ensure that
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all steps went successfully and you have read and understood the
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documentation.</p>
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<p>As soon as you are able to login without password to localhost,
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we can use cdist to configure it. You can copy and paste the following
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code into your shell to get started and configure localhost:</p>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="c1"># Get cdist</span>
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<span class="c1"># Mirrors can be found on</span>
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<span class="c1"># http://www.nico.schottelius.org/software/cdist/install/#index2h4</span>
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<span class="n">git</span> <span class="n">clone</span> <span class="n">git</span><span class="p">:</span><span class="o">//</span><span class="n">github</span><span class="o">.</span><span class="n">com</span><span class="o">/</span><span class="n">ungleich</span><span class="o">/</span><span class="n">cdist</span>
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<span class="c1"># Create manifest (maps configuration to host(s)</span>
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<span class="n">cd</span> <span class="n">cdist</span>
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<span class="n">echo</span> <span class="s1">'__file /etc/cdist-configured'</span> <span class="o">></span> <span class="n">cdist</span><span class="o">/</span><span class="n">conf</span><span class="o">/</span><span class="n">manifest</span><span class="o">/</span><span class="n">init</span>
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<span class="c1"># Configure localhost in verbose mode</span>
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<span class="o">./</span><span class="nb">bin</span><span class="o">/</span><span class="n">cdist</span> <span class="n">config</span> <span class="o">-</span><span class="n">v</span> <span class="n">localhost</span>
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<span class="c1"># Find out that cdist created /etc/cdist-configured</span>
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<span class="n">ls</span> <span class="o">-</span><span class="n">l</span> <span class="o">/</span><span class="n">etc</span><span class="o">/</span><span class="n">cdist</span><span class="o">-</span><span class="n">configured</span>
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</pre></div>
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</div>
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<p>Note: cdist/conf is configuration directory shipped with cdist distribution.
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If exists, ~/.cdist, is also automatically used as cdist configuration
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directory. So in the above example you could create ~/.cdist directory,
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then ~/.cdist/manifest sub-directory and create init manifest
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~/.cdist/manifest/init.</p>
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<p>That's it, you've successfully used cdist to configure your first host!
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Continue reading the next sections, to understand what you did and how
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to create a more sophisticated configuration.</p>
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