349 lines
12 KiB
Bash
Executable file
349 lines
12 KiB
Bash
Executable file
#!/bin/sh
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#
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# 2010-2014 Nico Schottelius (nico-cdist at schottelius.org)
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# 2014 Daniel Heule (hda at sfs.biz)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# Generate manpage that lists available types
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#
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__cdist_pwd="$(pwd -P)"
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__cdist_mydir="${0%/*}";
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__cdist_abs_mydir="$(cd "$__cdist_mydir" && pwd -P)"
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__cdist_myname=${0##*/};
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__cdist_abs_myname="$__cdist_abs_mydir/$__cdist_myname"
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filename="${__cdist_myname%.sh}"
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dest="$__cdist_abs_mydir/$filename"
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cd "$__cdist_abs_mydir"
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exec > "$dest"
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cat << eof
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Reference
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=========
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Variable, path and type reference for cdist
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Explorers
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---------
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The following global explorers are available:
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eof
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(
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cd ../../cdist/conf/explorer
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for explorer in $(ls * | LC_ALL=C sort); do
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echo "- $explorer"
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done
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)
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cat << eof
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Paths
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-----
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\$HOME/.cdist
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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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cdist/conf/
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The distribution configuration directory.
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This contains types and explorers to be used.
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cdist/inventory/
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The distribution inventory directory.
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This path is relative to cdist installation directory.
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cdist/preos/
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The distribution PreOS plugins directory.
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confdir
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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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confdir/files/
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Cdist does not care about this directory besides providing access to it.
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It is thought to be a general file storage area.
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confdir/manifest/init
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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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confdir/manifest/*
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All other files in this directory are not directly used by cdist, but you
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can separate 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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confdir/explorer/<name>
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Contains explorers to be run on the target hosts, see \`cdist explorer <cdist-explorer.html>\`_.
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confdir/type/
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Contains all available types, which are used to provide
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some kind of functionality. See \`cdist type <cdist-type.html>\`_.
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confdir/type/<name>/
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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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confdir/type/<name>/man.rst
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Manpage in reStructuredText format (required for inclusion into upstream).
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confdir/type/<name>/manifest
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Used to generate additional objects from a type.
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confdir/type/<name>/gencode-local
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Used to generate code to be executed on the source host.
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confdir/type/<name>/gencode-remote
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Used to generate code to be executed on the target host.
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confdir/type/<name>/parameter/required
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Parameters required by type, \n separated list.
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confdir/type/<name>/parameter/optional
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Parameters optionally accepted by type, \n separated list.
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confdir/type/<name>/parameter/default/*
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Default values for optional parameters.
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Assuming an optional parameter name of 'foo', it's default value would
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be read from the file confdir/type/<name>/parameter/default/foo.
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confdir/type/<name>/parameter/boolean
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Boolean parameters accepted by type, \n separated list.
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confdir/type/<name>/explorer
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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 <cdist-explorer.html>\`_.
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confdir/type/<name>/files
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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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out/
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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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out/explorer
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Output of general explorers.
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out/object
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Objects created for the host.
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out/object/<object>
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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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out/object/<object>/explorers
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Output of type specific explorers, per object.
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Types
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-----
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The following types are available:
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eof
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# If there is no such file then ls prints error to stderr,
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# so redirect stderr to /dev/null.
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for type in $(ls man7/cdist-type__*.rst 2>/dev/null | LC_ALL=C sort); do
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no_dir="${type#man7/}";
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no_type="${no_dir#cdist-type}";
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name="${no_type%.rst}";
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manref="${no_dir%.rst}"
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man="${manref}(7)"
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echo "- $name" "(\`${man} <man7/${manref}.html>\`_)"
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done
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cat << eof
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Objects
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-------
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For object to object communication and tests, the following paths are
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usable within a object directory:
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files
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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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changed
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This empty file exists in an object directory, if the object has
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code to be executed (either remote or local).
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stdin
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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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Environment variables (for reading)
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-----------------------------------
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The following environment variables are exported by cdist:
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__cdist_log_level, __cdist_log_level_name
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cdist log level value and cdist log level name. One of:
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+----------------+-----------------+
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| Log level name | Log level value |
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+================+=================+
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| OFF | 60 |
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+----------------+-----------------+
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| ERROR | 40 |
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+----------------+-----------------+
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| WARNING | 30 |
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+----------------+-----------------+
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| INFO | 20 |
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+----------------+-----------------+
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| VERBOSE | 15 |
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+----------------+-----------------+
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| DEBUG | 10 |
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+----------------+-----------------+
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| TRACE | 5 |
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+----------------+-----------------+
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Available for: initial manifest, explorer, type manifest, type explorer,
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type gencode.
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__cdist_dry_run
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Is set only when doing dry run (``-n`` flag).
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Available for: initial manifest, explorer, type manifest, type explorer,
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type gencode.
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__explorer
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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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__files
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Directory that contains content from the "files" subdirectories
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from the configuration directories.
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Available for: initial manifest, type manifest, type gencode, shell.
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__manifest
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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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__global
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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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__messages_in
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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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__messages_out
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File to write messages.
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Available for: initial manifest, type manifest, type gencode.
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__object
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Directory that contains the current object.
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Available for: type manifest, type explorer, type gencode and code scripts.
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__object_id
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The type unique object id.
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Available for: type manifest, type explorer, type gencode and code scripts.
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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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__object_name
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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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__target_host
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The host we are deploying to. This is primary variable. It's content is
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literally the one user passed in.
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Available for: explorer, initial manifest, type explorer, type manifest, type gencode, shell.
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__target_hostname
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The hostname of host we are deploying to. This variable is derived from
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**__target_host** (using **socket.getaddrinfo(__target_host)** and then
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**socket.gethostbyaddr()**).
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Available for: explorer, initial manifest, type explorer, type manifest, type gencode, shell.
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__target_fqdn
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The fully qualified domain name of the host we are deploying to.
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This variable is derived from **__target_host**
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(using **socket.getfqdn()**).
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Available for: explorer, initial manifest, type explorer, type manifest, type gencode, shell.
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__target_host_tags
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Comma separated list of target host tags.
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Available for: explorer, initial manifest, type explorer, type manifest, type gencode, shell.
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__type
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Path to the current type.
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Available for: type manifest, type gencode.
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__type_explorer
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Directory that contains the type explorers.
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Available for: type explorer.
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Environment variables (for writing)
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-----------------------------------
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The following environment variables influence the behaviour of cdist:
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require
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Setup dependencies between objects (see \`cdist manifest <cdist-manifest.html>\`_).
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__cdist_log_level
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cdist log level value. One of:
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+----------------+-----------------+
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| Log level | Log level value |
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+================+=================+
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| OFF | 60 |
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+----------------+-----------------+
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| ERROR | 40 |
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+----------------+-----------------+
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| WARNING | 30 |
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+----------------+-----------------+
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| INFO | 20 |
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+----------------+-----------------+
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| VERBOSE | 15 |
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+----------------+-----------------+
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| DEBUG | 10 |
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+----------------+-----------------+
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| TRACE | 5 |
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+----------------+-----------------+
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If set cdist will set this log level in
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accordance with configuration rules. If cdist invokation is used
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in types then nested cdist will honor this specified log level if
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not specified otherwise while invoking it.
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CDIST_PATH
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Colon delimited list of config directories.
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CDIST_LOCAL_SHELL
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Use this shell locally instead of /bin/sh to execute scripts.
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CDIST_REMOTE_SHELL
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Use this shell remotely instead of /bin/sh to execute scripts.
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CDIST_OVERRIDE
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Allow overwriting type parameters (see \`cdist manifest <cdist-manifest.html>\`_).
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CDIST_ORDER_DEPENDENCY
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Create dependencies based on the execution order (see \`cdist manifest <cdist-manifest.html>\`_).
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Read also about \`perils of CDIST_ORDER_DEPENDENCY <cdist-best-practice.html#perils-of-cdist-order-dependency>\`_.
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CDIST_REMOTE_EXEC
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Use this command for remote execution (should behave like ssh).
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CDIST_REMOTE_COPY
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Use this command for remote copy (should behave like scp).
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CDIST_INVENTORY_DIR
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Use this directory as inventory directory.
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CDIST_BETA
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Enable beta functionalities.
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CDIST_CACHE_PATH_PATTERN
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Custom cache path pattern.
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eof
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