lorax/intro.html

156 lines
6.8 KiB
HTML
Raw Normal View History

2015-05-16 00:30:02 +00:00
<!DOCTYPE html>
2021-10-11 23:33:12 +00:00
<html class="writer-html5" lang="en" >
2015-05-16 00:30:02 +00:00
<head>
2021-10-11 23:33:12 +00:00
<meta charset="utf-8" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" />
2015-05-16 00:30:02 +00:00
2021-10-11 23:33:12 +00:00
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
2021-12-11 00:05:46 +00:00
<title>Introduction to Lorax &mdash; Lorax 36.3 documentation</title>
2021-10-11 23:33:12 +00:00
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
<link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
2015-05-16 00:30:02 +00:00
2021-10-11 23:33:12 +00:00
<script data-url_root="./" id="documentation_options" src="_static/documentation_options.js"></script>
2020-10-07 17:56:09 +00:00
<script src="_static/jquery.js"></script>
<script src="_static/underscore.js"></script>
<script src="_static/doctools.js"></script>
2021-10-11 23:33:12 +00:00
<script src="_static/js/theme.js"></script>
<link rel="index" title="Index" href="genindex.html" />
<link rel="search" title="Search" href="search.html" />
<link rel="next" title="Lorax" href="lorax.html" />
2019-03-27 23:44:17 +00:00
<link rel="prev" title="Welcome to Lorax&#39;s documentation!" href="index.html" />
2015-05-16 00:30:02 +00:00
</head>
2021-10-11 23:33:12 +00:00
<body class="wy-body-for-nav">
2015-05-16 00:30:02 +00:00
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
2016-02-13 00:08:15 +00:00
<div class="wy-side-scroll">
2019-03-27 23:44:17 +00:00
<div class="wy-side-nav-search" >
2016-02-13 00:08:15 +00:00
<a href="index.html" class="icon icon-home"> Lorax
</a>
<div class="version">
2021-12-11 00:05:46 +00:00
36.3
2016-02-13 00:08:15 +00:00
</div>
2015-05-16 00:30:02 +00:00
<div role="search">
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
<input type="text" name="q" placeholder="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
2021-10-11 23:33:12 +00:00
</div><div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="Navigation menu">
2017-11-28 17:30:43 +00:00
<ul class="current">
2016-11-29 17:29:44 +00:00
<li class="toctree-l1 current"><a class="current reference internal" href="#">Introduction to Lorax</a></li>
2015-05-16 00:30:02 +00:00
<li class="toctree-l1"><a class="reference internal" href="#before-lorax">Before Lorax</a></li>
2016-02-13 00:08:15 +00:00
<li class="toctree-l1"><a class="reference internal" href="lorax.html">Lorax</a></li>
<li class="toctree-l1"><a class="reference internal" href="livemedia-creator.html">livemedia-creator</a></li>
2019-11-05 22:45:24 +00:00
<li class="toctree-l1"><a class="reference internal" href="mkksiso.html">mkksiso</a></li>
2015-05-16 00:30:02 +00:00
<li class="toctree-l1"><a class="reference internal" href="product-images.html">Product and Updates Images</a></li>
<li class="toctree-l1"><a class="reference internal" href="modules.html">src</a></li>
2015-05-16 00:30:02 +00:00
</ul>
2016-02-13 00:08:15 +00:00
</div>
2015-05-16 00:30:02 +00:00
</div>
</nav>
2021-10-11 23:33:12 +00:00
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"><nav class="wy-nav-top" aria-label="Mobile navigation menu" >
2017-11-28 17:30:43 +00:00
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="index.html">Lorax</a>
2015-05-16 00:30:02 +00:00
</nav>
<div class="wy-nav-content">
<div class="rst-content">
2021-10-11 23:33:12 +00:00
<div role="navigation" aria-label="Page navigation">
2015-05-16 00:30:02 +00:00
<ul class="wy-breadcrumbs">
2021-10-11 23:33:12 +00:00
<li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
2017-11-28 17:30:43 +00:00
<li>Introduction to Lorax</li>
2015-05-16 00:30:02 +00:00
<li class="wy-breadcrumbs-aside">
2017-11-28 17:30:43 +00:00
<a href="_sources/intro.rst.txt" rel="nofollow"> View page source</a>
2015-05-16 00:30:02 +00:00
</li>
</ul>
<hr/>
</div>
2016-02-13 00:08:15 +00:00
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
<div itemprop="articleBody">
2021-10-11 23:33:12 +00:00
<section id="introduction-to-lorax">
2015-05-16 00:30:02 +00:00
<h1>Introduction to Lorax<a class="headerlink" href="#introduction-to-lorax" title="Permalink to this headline"></a></h1>
<p>I am the Lorax. I speak for the trees [and images].</p>
<p>Lorax is used to build the Anaconda Installer boot.iso, it consists of a
library, pylorax, a set of templates, and the lorax script. Its operation
is driven by a customized set of Mako templates that lists the packages
to be installed, steps to execute to remove unneeded files, and creation
of the iso for all of the supported architectures.</p>
2021-10-11 23:33:12 +00:00
</section>
<section id="before-lorax">
2015-05-16 00:30:02 +00:00
<h1>Before Lorax<a class="headerlink" href="#before-lorax" title="Permalink to this headline"></a></h1>
2019-03-27 23:44:17 +00:00
<p>Tree building tools such as pungi and revisor rely on 'buildinstall' in
2015-05-16 00:30:02 +00:00
anaconda/scripts/ to produce the boot images and other such control files
in the final tree. The existing buildinstall scripts written in a mix of
bash and Python are unmaintainable. Lorax is an attempt to replace them
with something more flexible.</p>
<p>EXISTING WORKFLOW:</p>
<p>pungi and other tools call scripts/buildinstall, which in turn call other
2019-03-27 23:44:17 +00:00
scripts to do the image building and data generation. Here's how it
2015-05-16 00:30:02 +00:00
currently looks:</p>
<blockquote>
2019-03-27 23:44:17 +00:00
<div><dl>
<dt>-&gt; buildinstall</dt><dd><ul class="simple">
<li><p>process command line options</p></li>
<li><p>write temporary yum.conf to point to correct repo</p></li>
<li><p>find anaconda release RPM</p></li>
<li><p>unpack RPM, pull in those versions of upd-instroot, mk-images,
maketreeinfo.py, makestamp.py, and buildinstall</p></li>
2015-05-16 00:30:02 +00:00
</ul>
<p>-&gt; call upd-instroot</p>
<p>-&gt; call maketreeinfo.py</p>
<p>-&gt; call mk-images (which figures out which mk-images.ARCH to call)</p>
<p>-&gt; call makestamp.py</p>
2019-03-27 23:44:17 +00:00
<ul class="simple">
<li><p>clean up</p></li>
2015-05-16 00:30:02 +00:00
</ul>
</dd>
</dl>
</div></blockquote>
<p>PROBLEMS:</p>
<p>The existing workflow presents some problems with maintaining the scripts.
First, almost all knowledge of what goes in to the stage 1 and stage 2
images lives in upd-instroot. The mk-images* scripts copy things from the
root created by upd-instroot in order to build the stage 1 image, though
2019-03-27 23:44:17 +00:00
it's not completely clear from reading the scripts.</p>
2015-05-16 00:30:02 +00:00
<p>NEW IDEAS:</p>
<p>Create a new central driver with all information living in Python modules.
Configuration files will provide the knowledge previously contained in the
upd-instroot and mk-images* scripts.</p>
2021-10-11 23:33:12 +00:00
</section>
2015-05-16 00:30:02 +00:00
2017-11-28 17:30:43 +00:00
</div>
2015-05-16 00:30:02 +00:00
</div>
2021-10-11 23:33:12 +00:00
<footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
<a href="index.html" class="btn btn-neutral float-left" title="Welcome to Lorax&#39;s documentation!" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
<a href="lorax.html" class="btn btn-neutral float-right" title="Lorax" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
2015-05-16 00:30:02 +00:00
</div>
<hr/>
<div role="contentinfo">
2021-10-11 23:33:12 +00:00
<p>&#169; Copyright 2018, Red Hat, Inc..</p>
2015-05-16 00:30:02 +00:00
</div>
2015-07-17 15:40:26 +00:00
2021-10-11 23:33:12 +00:00
Built with <a href="https://www.sphinx-doc.org/">Sphinx</a> using a
<a href="https://github.com/readthedocs/sphinx_rtd_theme">theme</a>
provided by <a href="https://readthedocs.org">Read the Docs</a>.
2015-07-17 15:40:26 +00:00
2021-10-11 23:33:12 +00:00
</footer>
2015-05-16 00:30:02 +00:00
</div>
</div>
</section>
</div>
2021-10-11 23:33:12 +00:00
<script>
2015-05-16 00:30:02 +00:00
jQuery(function () {
2018-06-04 23:34:57 +00:00
SphinxRtdTheme.Navigation.enable(true);
2015-05-16 00:30:02 +00:00
});
2021-10-11 23:33:12 +00:00
</script>
2015-05-16 00:30:02 +00:00
</body>
</html>