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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>cdist-reference(7)</title><link rel="stylesheet" type="text/css" href="docbook-xsl.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /></head><body><div xml:lang="en" class="article" lang="en"><div class="titlepage"><div><div><h2 class="title"><a id="idm140527244769776"></a>cdist-reference(7)</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Nico</span> <span class="surname">Schottelius</span></h3><code class="email"><<a class="email" href="mailto:nico-cdist--@--schottelius.org">nico-cdist--@--schottelius.org</a>></code></div></div></div><hr /></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="#_name">1. NAME</a></span></dt><dt><span class="section"><a href="#_explorers">2. EXPLORERS</a></span></dt><dt><span class="section"><a href="#_paths">3. PATHS</a></span></dt><dt><span class="section"><a href="#_types">4. TYPES</a></span></dt><dt><span class="section"><a href="#_objects">5. OBJECTS</a></span></dt><dt><span class="section"><a href="#_environment_variables_for_reading">6. ENVIRONMENT VARIABLES (FOR READING)</a></span></dt><dt><span class="section"><a href="#_environment_variables_for_writing">7. ENVIRONMENT VARIABLES (FOR WRITING)</a></span></dt><dt><span class="section"><a href="#_see_also">8. SEE ALSO</a></span></dt><dt><span class="section"><a href="#_copying">9. COPYING</a></span></dt></dl></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_name"></a>1. NAME</h2></div></div></div><p>cdist-reference - Variable, path and type reference for cdist</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_explorers"></a>2. EXPLORERS</h2></div></div></div><p>The following global explorers are available:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
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hostname
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</li><li class="listitem">
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interfaces
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</li><li class="listitem">
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lsb_codename
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</li><li class="listitem">
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lsb_description
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</li><li class="listitem">
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lsb_id
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</li><li class="listitem">
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lsb_release
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</li><li class="listitem">
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machine
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</li><li class="listitem">
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os
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</li><li class="listitem">
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os_version
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</li><li class="listitem">
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runlevel
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</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_paths"></a>3. PATHS</h2></div></div></div><div class="variablelist"><dl class="variablelist"><dt><span class="term">
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$HOME/.cdist
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</span></dt><dd>
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The standard cdist configuration directory relative to your home directory
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This is usually the place you want to store your site specific configuration
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</dd><dt><span class="term">
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cdist/conf/
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</span></dt><dd>
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The distribution configuration directory
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This contains types and explorers to be used
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</dd><dt><span class="term">
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confdir
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</span></dt><dd>
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Cdist will use all available configuration directories and create
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a temporary confdir containing links to the real configuration directories.
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This way it is possible to merge configuration directories.
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By default it consists of everything in $HOME/.cdist and cdist/conf/.
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For more details see cdist(1)
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</dd><dt><span class="term">
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confdir/manifest/init
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</span></dt><dd>
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This is the central entry point.
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It is an executable (+x bit set) shell script that can use
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values from the explorers to decide which configuration to create
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for the specified target host.
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Its intent is to used to define mapping from configurations to hosts.
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</dd><dt><span class="term">
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confdir/manifest/*
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</span></dt><dd>
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All other files in this directory are not directly used by cdist, but you
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can seperate configuration mappings, if you have a lot of code in the
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conf/manifest/init file. This may also be helpful to have different admins
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maintain different groups of hosts.
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</dd><dt><span class="term">
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confdir/explorer/<name>
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</span></dt><dd>
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Contains explorers to be run on the target hosts, see cdist-explorer(7).
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</dd><dt><span class="term">
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confdir/type/
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</span></dt><dd>
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Contains all available types, which are used to provide
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some kind of functionality. See cdist-type(7).
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</dd><dt><span class="term">
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confdir/type/<name>/
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</span></dt><dd>
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Home of the type <name>.
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This directory is referenced by the variable __type (see below).
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</dd><dt><span class="term">
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confdir/type/<name>/man.text
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</span></dt><dd>
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Manpage in Asciidoc format (required for inclusion into upstream)
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</dd><dt><span class="term">
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confdir/type/<name>/manifest
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</span></dt><dd>
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Used to generate additional objects from a type.
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</dd><dt><span class="term">
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confdir/type/<name>/gencode-local
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</span></dt><dd>
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Used to generate code to be executed on the source host
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</dd><dt><span class="term">
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confdir/type/<name>/gencode-remote
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</span></dt><dd>
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Used to generate code to be executed on the target host
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</dd><dt><span class="term">
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confdir/type/<name>/parameter/required
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</span></dt><dd>
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Parameters required by type, \n seperated list.
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</dd><dt><span class="term">
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confdir/type/<name>/parameter/optional
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</span></dt><dd>
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Parameters optionally accepted by type, \n seperated list.
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</dd><dt><span class="term">
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confdir/type/<name>/parameter/default/*
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</span></dt><dd>
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Default values for optional parameters.
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Assuming an optional parameter name of <span class="emphasis"><em>foo</em></span>, it’s default value would
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be read from the file confdir/type/<name>/parameter/default/foo.
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</dd><dt><span class="term">
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confdir/type/<name>/parameter/boolean
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</span></dt><dd>
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Boolean parameters accepted by type, \n seperated list.
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</dd><dt><span class="term">
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confdir/type/<name>/explorer
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</span></dt><dd>
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Location of the type specific explorers.
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This directory is referenced by the variable __type_explorer (see below).
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See cdist-explorer(7).
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</dd><dt><span class="term">
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confdir/type/<name>/files
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</span></dt><dd>
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This directory is reserved for user data and will not be used
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by cdist at any time. It can be used for storing supplementary
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files (like scripts to act as a template or configuration files).
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</dd><dt><span class="term">
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out/
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</span></dt><dd>
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This directory contains output of cdist and is usually located
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in a temporary directory and thus will be removed after the run.
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This directory is referenced by the variable __global (see below).
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</dd><dt><span class="term">
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out/explorer
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</span></dt><dd>
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Output of general explorers.
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</dd><dt><span class="term">
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out/object
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</span></dt><dd>
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Objects created for the host.
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</dd><dt><span class="term">
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out/object/<object>
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</span></dt><dd>
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Contains all object specific information.
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This directory is referenced by the variable __object (see below).
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</dd><dt><span class="term">
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out/object/<object>/explorers
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</span></dt><dd>
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Output of type specific explorers, per object.
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</dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_types"></a>4. TYPES</h2></div></div></div><p>The following types are available:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
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__apt_key (cdist-type__apt_key(7))
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</li><li class="listitem">
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__apt_key_uri (cdist-type__apt_key_uri(7))
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</li><li class="listitem">
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__apt_norecommends (cdist-type__apt_norecommends(7))
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</li><li class="listitem">
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__apt_source (cdist-type__apt_source(7))
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</li><li class="listitem">
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__ccollect_source (cdist-type__ccollect_source(7))
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</li><li class="listitem">
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__debconf_set_selections (cdist-type__debconf_set_selections(7))
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</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_objects"></a>5. OBJECTS</h2></div></div></div><p>For object to object communication and tests, the following paths are
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usable within a object directory:</p><div class="variablelist"><dl class="variablelist"><dt><span class="term">
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files
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</span></dt><dd>
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This directory is reserved for user data and will not be used
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by cdist at any time. It can be used freely by the type
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(for instance to store template results).
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</dd><dt><span class="term">
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changed
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</span></dt><dd>
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This empty file exists in an object directory, if the object has
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code to be excuted (either remote or local)
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</dd><dt><span class="term">
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stdin
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</span></dt><dd>
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This file exists and contains data, if data was provided on stdin
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when the type was called.
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</dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_environment_variables_for_reading"></a>6. ENVIRONMENT VARIABLES (FOR READING)</h2></div></div></div><p>The following environment variables are exported by cdist:</p><div class="variablelist"><dl class="variablelist"><dt><span class="term">
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__explorer
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</span></dt><dd>
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Directory that contains all global explorers.
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Available for: initial manifest, explorer, type explorer, shell
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</dd><dt><span class="term">
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__manifest
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</span></dt><dd>
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Directory that contains the initial manifest.
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Available for: initial manifest, type manifest, shell
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</dd><dt><span class="term">
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__global
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</span></dt><dd>
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Directory that contains generic output like explorer.
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Available for: initial manifest, type manifest, type gencode, shell
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</dd><dt><span class="term">
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__messages_in
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</span></dt><dd>
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File to read messages from
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Available for: initial manifest, type manifest, type gencode
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</dd><dt><span class="term">
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__messages_out
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</span></dt><dd>
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File to write messages
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Available for: initial manifest, type manifest, type gencode
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</dd><dt><span class="term">
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__object
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</span></dt><dd>
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Directory that contains the current object.
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Available for: type manifest, type explorer, type gencode
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</dd><dt><span class="term">
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__object_id
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</span></dt><dd>
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The type unique object id.
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Available for: type manifest, type explorer, type gencode
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Note: The leading and the trailing "/" will always be stripped (caused by
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the filesystem database and ensured by the core).
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Note: Double slashes ("//") will not be fixed and result in an error.
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</dd><dt><span class="term">
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__object_name
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</span></dt><dd>
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The full qualified name of the current object.
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Available for: type manifest, type explorer, type gencode
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</dd><dt><span class="term">
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__target_host
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</span></dt><dd>
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The host we are deploying to.
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Available for: explorer, initial manifest, type explorer, type manifest, type gencode, shell
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</dd><dt><span class="term">
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__type
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</span></dt><dd>
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Path to the current type.
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Available for: type manifest, type gencode
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</dd><dt><span class="term">
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__type_explorer
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</span></dt><dd>
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Directory that contains the type explorers.
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Available for: type explorer
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</dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_environment_variables_for_writing"></a>7. ENVIRONMENT VARIABLES (FOR WRITING)</h2></div></div></div><p>The following environment variables influence the behaviour of cdist:</p><div class="variablelist"><dl class="variablelist"><dt><span class="term">
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require
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</span></dt><dd>
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Setup dependencies between objects (see cdist-manifest(7))
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</dd><dt><span class="term">
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CDIST_ALLOW_OVERRIDE
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</span></dt><dd>
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Allow overwriting type parameters (see cdist-manifest(7))
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</dd></dl></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_see_also"></a>8. SEE ALSO</h2></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
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cdist(1)
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</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_copying"></a>9. COPYING</h2></div></div></div><p>Copyright (C) 2011-2013 Nico Schottelius. Free use of this software is
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granted under the terms of the GNU General Public License version 3 (GPLv3).</p></div></div></body></html> |