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doc/file.README.html
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<!DOCTYPE html>
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<title>
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File: README
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— Documentation by YARD 0.9.16
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</title>
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<link rel="stylesheet" href="css/style.css" type="text/css" charset="utf-8" />
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<a href="_index.html">Index</a> »
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<span class="title">File: README</span>
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</div>
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<div id="search">
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<a class="full_list_link" id="puppet_class_list_link"
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<div id="content"><div id='filecontents'>
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<h1 id="label-Readme">Readme</h1>
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<p>|<code>cd_haproxy</code>| 1.0.3.0 | <a
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href="https://pipelines.confdroid.com/job/cd_haproxy/"><img
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src="https://pipelines.confdroid.com/buildStatus/icon?job=cd_haproxy"></a>|</p>
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<p>[[<em>TOC</em>]]</p>
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<h2 id="label-Synopsis">Synopsis</h2>
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<p><code>HA Proxy</code> is a very powerful and popular open source load
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balancer to balance incoming requests between multiple instances of web-,
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application- or database servers etc.</p>
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<p><code>cd_haproxy</code> automates installation and configuration of
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<code>HA proxy</code> including self-healing, monitoring and firewall etc.</p>
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<h2 id="label-WARNING">WARNING</h2>
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<p><code>**__!!! Attention: Never use this puppet module on systems which have
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been previously configured manually. It is impossible to predict how and
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what would have been configured, hence previuos configurations outside the
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scope of this module may be overwritten! Automated configurations require a
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test environment to verify that the module suits the purpose intended by
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the user, as well as tune the parameters, before deploying into live
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production!!! __**</code></p>
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<h2 id="label-Features">Features</h2>
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<p>INSTALLATION</p>
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<ul><li>
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<p>install rpm binaries</p>
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</li></ul>
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<p>CONFIGURATION</p>
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<ul><li>
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<p>manage haproxy user</p>
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</li><li>
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<p>manage directories (file system permissions, selinux context)</p>
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</li><li>
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<p>manage files (file system permissions, content, selinux context)</p>
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</li><li>
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<p>manage proxy instances through a define</p>
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</li><li>
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<p>front-end options</p>
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</li><li>
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<p>back-end options</p>
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</li><li>
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<p>ACL options</p>
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</li></ul>
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<p>SERVICE</p>
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<ul><li>
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<p>manage haproxy service</p>
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</li><li>
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<p>restart service after changes in the configuration</p>
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</li></ul>
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<h2 id="label-Dependencies">Dependencies</h2>
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<p>All dependencies must be included in the catalogue.</p>
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<ul><li>
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<p><a
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href="https://sourcecode.confdroid.com/12WW1160/cd_resources">cd_resources</a>
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for managing yum base repos</p>
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</li><li>
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<p><a href="https://sourcecode.confdroid.com/12ww1160/cd_concat">cd_concat</a>
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or <a href="https://github.com/puppetlabs/puppetlabs-concat">concat</a> for
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managing file fragments</p>
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</li></ul>
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<h2 id="label-Deployment">Deployment</h2>
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<ul><li>
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<p>native Puppet deployment</p>
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</li></ul>
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<p>via site.pp or nodes.pp</p>
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<pre class="code ruby"><code class="ruby">node 'example.example.net' {
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include cd_haproxy
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}</code></pre>
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<ul><li>
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<p>through Foreman:</p>
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</li></ul>
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<p>In order to apply parameters through Foreman,
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<strong>cd_haproxy::params</strong> must be added to the host or host group
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in question.</p>
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<p>See <a
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href="https://confdroid.com/2017/05/deploying-our-puppet-modules/">more
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details about class deployment on Confdroid.com</a>.</p>
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<h2 id="label-Parameters">Parameters</h2>
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<p>The parameters are documented via puppet strings and <a
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href="/docs/index.html">listed here</a>. Simply open in web browser.</p>
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<h2 id="label-Proxy+Configuration">Proxy Configuration</h2>
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<p>The proxy instances are configured in /etc/haproxy/haproxy.cfg, which is
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concatenated from various templates through a define in this puppet module.
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In order to create proxy instances, you will need an external class, which
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addresses the define, like so:</p>
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<pre class="code ruby"><code class="ruby">cd_haproxy::server::proxy { 'testing':
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haproxy_fqdn => 'node.example.net',
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frontend_name => 'test01-frontend',
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frontend_mode => 'http',
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acl_rule => ['too_fast fe_sess_rate ge 10',
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'network_allowed src 0.0.0.0/0'],
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backend_name => 'test01-backend',
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}</code></pre>
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<p>This allows the puppet module to create the sections in the configuration
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file as required. The haproxy service will be restarted after the changes
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in the configuration file are made. <code>haproxy_fqdn</code>
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<strong>must</strong> contain the fqdn of the haproxy
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<strong>server</strong> where this should be configured, otherwise the
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templates are not being populated. Multiple ACLs need to be added as array,
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and will create one line each.</p>
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<h2 id="label-SELINUX">SELINUX</h2>
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<p>All files and directories are configured with correct selinux context. If
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selinux is disabled, these contexts are ignored.</p>
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<h2 id="label-Known+Problems">Known Problems</h2>
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<h2 id="label-Support">Support</h2>
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<ul><li>
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<p>OS: CentOS 7</p>
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</li><li>
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<p>Puppet 5</p>
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</li></ul>
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<h2 id="label-Tests">Tests</h2>
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<ul><li>
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<p>Puppet Lint</p>
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</li><li>
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<p>excluded tests:</p>
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<ul><li>
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<p><code>--no-class_inherits_from_params_class-check</code>:relevant only to
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non-supported outdated puppet versions</p>
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</li><li>
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<p><code>--no-variable_scope-check</code>: not applicable as we are inheriting
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parameters from params class. the lint check does not distinguish between
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facts and inherited parameters.</p>
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</li><li>
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<p><code>--no-80chars-check</code>: it is not always possible to stay within
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80 characters, although typically only occurring on the parameter vault
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<code>params.pp</code>.</p>
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</li><li>
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<p><code>--no-arrow_alignment-check</code>: this check leads to actually not
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having am easily readable arrow alignment, as this checks <code>per
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block</code>, not per class.</p>
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</li></ul>
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</li><li>
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<p>Puppet Parser</p>
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</li><li>
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<p>ERB Template Parser</p>
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</li><li>
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<p>Test for unwanted UTF8 files in the Puppet code (see tests/UTF_Files)</p>
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</li><li>
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<p>Markdown-lint</p>
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</li><li>
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<p>Spellcheck</p>
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</li><li>
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<p>Sonar Quality Gate</p>
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</li></ul>
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<h2 id="label-Contact+Us">Contact Us</h2>
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<p><a href="https://confdroid.com/contact/">contact Us</a></p>
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<h2 id="label-Disclaimer">Disclaimer</h2>
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<p>ConfDroid as entity is entirely independent from Puppet. We provide custom
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configuration modules, written for specific purposes and specific
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environments. The modules are tested and supported only as documented, and
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require testing in designated environments (i.e. lab or development
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environments) for parameter tuning etc. before deploying into production
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environments.</p>
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</div></div>
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<div id="footer">
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Generated by <a href="http://yardoc.org" title="Yay! A Ruby Documentation Tool" target="_parent">yard</a>.
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</div>
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