Puppet Module Tool
The Puppet Module Tool,
puppet-module, creates, installs and searches for
modules on the Puppet Forge at http://forge.puppetlabs.com
puppet-module, you must have the following installed:
- Ruby 1.8.x: http://www.ruby-lang.org/en/downloads/
- RubyGems 1.3.x: http://rubygems.org/pages/download/
- Puppet 0.25.x: http://www.puppetlabs.com/
The source code for this tool is available online at http://github.com/puppetlabs/puppet-module-tool
You can checkout the source code by installing the
git distributed version
control system and running:
git clone git://github.com/puppetlabs/puppet-module-tool.git
There are a number of ways to run the
From an official gem: Install it by running:
sudo gem install puppet-module
From a locally-built gem: Checkout the source code and from the checkout directory, run:
# Build the gem rake gem # Install the file produced by the above command, e.g.: sudo gem install pkg/puppet-module-0.3.0.gem
From a source code checkout: Checkout the source code and from the checkout directory, run:
N.B. you must have Puppet installed locally for
puppet-module to work.
If Puppet is not installed by your system's package manager, install the RubyGem with:
sudo gem install puppet
Display the program's built-in help by running:
Display information on a specific command by running a command like:
puppet-module help install
Many commands will use a specific repository if you pass it to the
option at the end, like:
puppet-module search mymodule -r http://forge.puppetlabs.com/
Search for modules
Searching displays modules on the repository that match your query.
For example, search the default repository for modules whose names
include the substring
puppet-module search mymodule
Install a module release
Installing a module release from a repository downloads a special archive file. This archive is then automatically unpacked into a new directory under your current directory. You can then add this module directory to your Puppet configuration files to use it.
For example, install the latest release of the module named
myuser from the default repository:
puppet-module install myuser-mymodule
Or install a specific version:
puppet-module install myuser-mymodule --version=0.0.1
Generate a module
Generating a new module produces a new directory prepopulated with a directory structure and files recommended for Puppet best practices.
For example, generate a new module:
puppet-module generate myuser-mymodule
The above command will create a new module directory called
myuser-mymodule under your current directory with the generated files.
Please read the files in this generated directory for further details.
Build a module release
Building a module release processes the files in your module directory and produces a special archive file that you can share or install.
For example, build a module release from within the module directory:
The above command will report where it created the module release archive file.
For example, if this was version
myuser-mymodule, then this
would have created a
pkg/myuser-mymodule-0.0.1.tar.gz release file.
The build process reads a
Modulefile in your module directory and uses
its contents to build a
metadata.json file. This generated JSON file
is included in the module release archive so that repositories and
installers can extract details from your release. Do not edit this
metadata.json file yourself, because it's clobbered each time during
the build process -- you should make all your changes to the
All the files in the
pkg directory of your module directory are
artifacts of the build process. You can delete them when you're done.
Write a valid
The Modulefile resembles a configuration or data file, but is actually a Ruby domain-specific language (DSL), which means it's evaluated as code by the puppet-module tool. A Modulefile consists of a series of method calls which write or append to the available fields in the metadata object.
Normal rules of Ruby syntax apply:
name 'myuser-mymodule' version '0.0.1' dependency( 'otheruser-othermodule', '1.2.3' ) description "This is a full description of the module, and is being written as a multi-line string."
The following metadata fields/methods are available:
name-- The full name of the module (e.g. "username-module").
version-- The current version of the module.
dependency-- A module that this module depends on. Unlike the other fields, the
dependencymethod accepts up to three arguments: a module name, a version requirement, and a repository. A Modulefile may include multiple
source-- The module's source. The use of this field is not specified.
author-- The module's author. If not specified, this field will default to the username portion of the module's
license-- The license under which the module is made available.
summary-- One-line description of the module.
description-- Complete description of the module.
project_page-- The module's website.
Share a module
Sharing a module release with others helps others avoid reinventing the wheel, and encourages them to help with your work by improving it. For every module you share, we hope you'll find many modules by others that will be useful to you.
You can share your modules at http://forge.puppetlabs.com/
Building and sharing a new module version
To build and share a new module version:
- Edit the
Modulefileand increase the
- Run the
puppet-module buildas explained in the Build a module release section.
- Upload the new release file as explained in the Share a module section.
Cleaning the cache
Modules that you install are saved to a cache within your
directory. This cache can be cleaned out by running:
Deleting a module
The tool does not keep track of what modules you have installed. TO delete a module just delete the directory the module was extracted into.
Developing or submitting patches
You need the following RubyGems to run the test suite:
You can run the tests with:
This is new and exciting for us. We have many plans for this and what you see now is just the beginning. If you have ideas, please get in touch. Puppet Labs can be contacted at: firstname.lastname@example.org
Technical disclaimer for techies
This tool downloads untrusted code from the Internet. Please read the source code before executing it to avoid surprises. If it breaks, it's not our fault -- although we encourage you to contact the authors, file a bug report and send patches.
Legal disclaimer for lawyers
THE PROGRAM AND MODULES ARE DISTRIBUTED IN THE HOPE THAT THEY WILL BE USEFUL, BUT WITHOUT ANY WARRANTY. THEY ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM OR MODULES PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
IN NO EVENT WILL Puppet Labs Inc. BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS PROGRAM OR MODULES (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM OR MODULES TO OPERATE WITH ANY OTHER PROGRAMS OR MODULES), EVEN IF Puppet Labs Inc. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
This software is distributed under the GNU General Public License version 2 or any later version. See the LICENSE file for details.
Copyright (C) 2010 Puppet Labs Inc.