clearlinux/clear-linux-documentation
2
0
Fork 0
mirror of https://github.com/clearlinux/clear-linux-documentation.git synced 2026-05-13 18:33:40 +00:00
Code Issues Packages Projects Releases Wiki Activity
Files
latestHTML
clear-linux-documentation/reference/manpages/ucd.1.html
alexjch 90b41ced3a latest html output
2024-11-04 18:56:31 +00:00

288 lines
15 KiB
HTML
Raw Permalink Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
<!DOCTYPE html>
<html lang="en" data-content_root="../../">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="viewport" content="width=device-width, initial-scale=1" />
<title>ucd &#8212; Documentation for Clear Linux* project</title>
<link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=fa44fd50" />
<link rel="stylesheet" type="text/css" href="../../_static/bizstyle.css?v=5283bb3d" />
<link rel="stylesheet" type="text/css" href="../../_static/copybutton.css?v=76b2166b" />
<script src="../../_static/documentation_options.js?v=5929fcd5"></script>
<script src="../../_static/doctools.js?v=9bcbadda"></script>
<script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
<script src="../../_static/clipboard.min.js?v=a7894cd8"></script>
<script src="../../_static/copybutton.js?v=a56c686a"></script>
<script src="../../_static/bizstyle.js"></script>
<link rel="canonical" href="https://clearlinux.github.io/clear-linux-documentation/reference/manpages/ucd.1.html" />
<link rel="icon" href="../../_static/favicon.ico"/>
<link rel="author" title="About these documents" href="../../about.html" />
<link rel="index" title="Index" href="../../genindex.html" />
<link rel="search" title="Search" href="../../search.html" />
<link rel="next" title="cloud-config" href="cloud-config.5.html" />
<link rel="prev" title="clrtrust" href="clrtrust.1.html" />
<meta name="viewport" content="width=device-width,initial-scale=1.0" />
<!--[if lt IE 9]>
<script src="_static/css3-mediaqueries.js"></script>
<![endif]-->
</head><body>
<div class="related" role="navigation" aria-label="Related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="cloud-config.5.html" title="cloud-config"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="clrtrust.1.html" title="clrtrust"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../../index.html">Documentation for Clear Linux* project</a> &#187;</li>
<li class="nav-item nav-item-1"><a href="../index.html" >Reference</a> &#187;</li>
<li class="nav-item nav-item-2"><a href="../man-pages.html" accesskey="U">Man pages</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">ucd</a></li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<section id="ucd">
<h1>ucd<a class="headerlink" href="#ucd" title="Link to this heading"></a></h1>
<p>micro-config-drive(1) – Configure a cloud instance using config-drive
data</p>
<section id="synopsis">
<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Link to this heading"></a></h2>
<p><code class="docutils literal notranslate"><span class="pre">/usr/bin/ucd</span></code></p>
<p><code class="docutils literal notranslate"><span class="pre">ucd</span></code> [OPTIONS…]</p>
</section>
<section id="description">
<h2>DESCRIPTION<a class="headerlink" href="#description" title="Link to this heading"></a></h2>
<p><code class="docutils literal notranslate"><span class="pre">ucd</span></code> runs at boot time with the purpose of configuring a cloud
instance for use of the end user.</p>
<p>ucd can perform any of the following (optional) tasks:</p>
<ul class="simple">
<li><p>create a default account with sudo privileges</p></li>
<li><p>lock root and default account, the only way to login is using ssh
keys (security feature)</p></li>
<li><p>maintain the cloud instance in a right state (resize/fix partitions
and filesystem)</p></li>
<li><p>get and process userdata and metadata from an attached config-drive
block device</p></li>
</ul>
<p>Userdata formats supported:</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">cloud-config</span></code>: begins with <code class="docutils literal notranslate"><span class="pre">#cloud-config</span></code> and is used to
execute certain tasks in a human friendly format</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">shell-script</span></code>: begins with <code class="docutils literal notranslate"><span class="pre">#!</span></code> and is used to execute a shell
script</p></li>
</ul>
<p>Metadata formats supported:</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">openstack</span></code></p></li>
</ul>
</section>
<section id="openstack-datasources">
<h2>OPENSTACK DATASOURCES<a class="headerlink" href="#openstack-datasources" title="Link to this heading"></a></h2>
<p>Datasources are used to retrive instance-specific data in order to
configure a new cloud instance. Openstack attaches two datasources to
the cloud instance when it boots.</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">config-drive</span></code>: is a disk formatted with vfat or iso9660 and have a
label of config-2</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">metadata</span> <span class="pre">service</span></code>: instances can access to it at
<a class="reference external" href="http://169.254.169.254">http://169.254.169.254</a> <code class="docutils literal notranslate"><span class="pre">[NOT</span> <span class="pre">SUPPORTED]</span></code></p></li>
</ul>
<p>more information about openstack datasources can be found in:</p>
<ul class="simple">
<li><p><a class="reference external" href="http://docs.openstack.org/user-guide/cli_config_drive.html">http://docs.openstack.org/user-guide/cli_config_drive.html</a></p></li>
<li><p><a class="reference external" href="http://docs.openstack.org/admin-guide/compute-networking-nova.html#metadata-service">http://docs.openstack.org/admin-guide/compute-networking-nova.html#metadata-service</a></p></li>
</ul>
</section>
<section id="workflow">
<h2>WORKFLOW<a class="headerlink" href="#workflow" title="Link to this heading"></a></h2>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>`|` Parse options
`|` Init openstack datasource
`|-&gt;` if config-drive is found then define it as datasource otherwise exit
`|` Start openstack datasource
`|-&gt;` Get userdata and metadata from datasource
`|` Run async tasks
`|-&gt;` resize disk
`|-&gt;` resize filesystem
`|` If a datasource was found
`|-&gt;` if VM first boot was detected
`| |-&gt;` Run async tasks
`| | |-&gt;` lock root account
`| | |-&gt;` Create sudoers file for default user account
`| |-&gt;` Create default user account
`|-&gt;` Process openstack metadata
`|-&gt;` Process openstack userdata
`|` Join async tasks
`|` Finish openstack datasource (free resources)
</pre></div>
</div>
</section>
<section id="options">
<h2>OPTIONS<a class="headerlink" href="#options" title="Link to this heading"></a></h2>
<p>The following options are understood:</p>
<ul>
<li><p><code class="docutils literal notranslate"><span class="pre">-h</span></code>, <code class="docutils literal notranslate"><span class="pre">--help</span></code>:</p>
<p>Prints a help message.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">-u</span></code> FILE, <code class="docutils literal notranslate"><span class="pre">--user-data-file</span></code> FILE:</p>
<p>Path to a cloud-config user data file&amp;. If omitted, <code class="docutils literal notranslate"><span class="pre">ucd</span></code> will
attempt to fetch user-data from the openstack link-local connected
data service URL.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--openstack-metadata-file</span></code> FILE:</p>
<p>Path to an openstack metadata file. more information:
<a class="reference external" href="http://docs.openstack.org/user-guide/cli_config_drive.html#openstack-metadata-format">http://docs.openstack.org/user-guide/cli_config_drive.html#openstack-metadata-format</a></p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--openstack-config-drive</span></code> PATH:</p>
<p>Path to openstack config drive (iso9660 or vfat filesystem), it will
be used to process metadata and userdata. more information:
<a class="reference external" href="http://docs.openstack.org/user-guide/cli_config_drive.html#configuration-drive-contents">http://docs.openstack.org/user-guide/cli_config_drive.html#configuration-drive-contents</a></p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--user-data</span></code>:</p>
<p>Get and process user data from data sources.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--user-data-once</span></code>:</p>
<p>Only on first boot get and process user data from data sources. Note
this option is ignored if <code class="docutils literal notranslate"><span class="pre">--user-data</span></code> is enabled.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--metadata</span></code>:</p>
<p>Get and process metadata from data sources.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--fix-disk</span></code>:</p>
<p>Fix disk and filesystem if it is needed.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">-v</span></code>, <code class="docutils literal notranslate"><span class="pre">--version</span></code>:</p>
<p>Prints version information.</p>
</li>
<li><p><code class="docutils literal notranslate"><span class="pre">--first-boot-setup</span></code>:</p>
<p>Setup the instance in its first boot. When first boot of the instance
is detected, <code class="docutils literal notranslate"><span class="pre">ucd</span></code> will perform the following tasks: create a
default user account, create sudoers file for default user account,
lock the root account.</p>
</li>
</ul>
</section>
<section id="exit-status">
<h2>EXIT STATUS<a class="headerlink" href="#exit-status" title="Link to this heading"></a></h2>
<p>On success, 0 is returned, a non-zero failure code otherwise.</p>
</section>
<section id="copyright">
<h2>COPYRIGHT<a class="headerlink" href="#copyright" title="Link to this heading"></a></h2>
<ul class="simple">
<li><p>Copyright (C) 2017 Intel Corporation, License: CC-BY-SA-3.0</p></li>
</ul>
</section>
<section id="see-also">
<h2>SEE ALSO<a class="headerlink" href="#see-also" title="Link to this heading"></a></h2>
<p>This project is a limited-functionality implementation of the cloud-init
specification. The full documentation of the generic implementation is
available online and can be referenced here:</p>
<p><code class="docutils literal notranslate"><span class="pre">https://cloudinit.readthedocs.org/en/latest/</span></code></p>
<p>The cloud-config format that <a class="reference external" href="ucd.1.html">ucd(1)</a> supports is documented in
<a class="reference external" href="cloud-config.5.html">cloud-config(5)</a>. This lists the options that are supported, their
structure and function.</p>
</section>
<section id="notes">
<h2>NOTES<a class="headerlink" href="#notes" title="Link to this heading"></a></h2>
<p>Creative Commons Attribution-ShareAlike 3.0 Unported</p>
<ul class="simple">
<li><p><a class="reference external" href="http://creativecommons.org/licenses/by-sa/3.0/">http://creativecommons.org/licenses/by-sa/3.0/</a></p></li>
</ul>
</section>
</section>
<div class="clearer"></div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="Main">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="../../index.html">
<img class="logo" src="../../_static/clearlinux.png" alt="Logo of Clear Linux* Project Docs"/>
</a></p>
<div>
<h3><a href="../../index.html">Table of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">ucd</a><ul>
<li><a class="reference internal" href="#synopsis">SYNOPSIS</a></li>
<li><a class="reference internal" href="#description">DESCRIPTION</a></li>
<li><a class="reference internal" href="#openstack-datasources">OPENSTACK DATASOURCES</a></li>
<li><a class="reference internal" href="#workflow">WORKFLOW</a></li>
<li><a class="reference internal" href="#options">OPTIONS</a></li>
<li><a class="reference internal" href="#exit-status">EXIT STATUS</a></li>
<li><a class="reference internal" href="#copyright">COPYRIGHT</a></li>
<li><a class="reference internal" href="#see-also">SEE ALSO</a></li>
<li><a class="reference internal" href="#notes">NOTES</a></li>
</ul>
</li>
</ul>
</div>
<div>
<h4>Previous topic</h4>
<p class="topless"><a href="clrtrust.1.html"
title="previous chapter">clrtrust</a></p>
</div>
<div>
<h4>Next topic</h4>
<p class="topless"><a href="cloud-config.5.html"
title="next chapter">cloud-config</a></p>
</div>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../../_sources/reference/manpages/ucd.1.rst.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
<search id="searchbox" style="display: none" role="search">
<h3 id="searchlabel">Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../../search.html" method="get">
<input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
<input type="submit" value="Go" />
</form>
</div>
</search>
<script>document.getElementById('searchbox').style.display = "block"</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related" role="navigation" aria-label="Related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="cloud-config.5.html" title="cloud-config"
>next</a> |</li>
<li class="right" >
<a href="clrtrust.1.html" title="clrtrust"
>previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../../index.html">Documentation for Clear Linux* project</a> &#187;</li>
<li class="nav-item nav-item-1"><a href="../index.html" >Reference</a> &#187;</li>
<li class="nav-item nav-item-2"><a href="../man-pages.html" >Man pages</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">ucd</a></li>
</ul>
</div>
<div class="footer" role="contentinfo">
&#169; Copyright 2022 Intel Corporation. All Rights Reserved..
Last updated on Nov 04, 2024.
Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 8.1.3.
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink