What are Puppet manifests and modules?
What are Puppet manifests and modules?
Puppet modules are a collection of manifests and data, which can include facts, files, and templates. Modules help you organize and reuse Puppet code by enabling you to split the code into several manifests.
What is manifest in Puppet?
A manifest is a file containing Puppet configuration language that describes how resources should be configured. The manifest is the closest thing to what one might consider a Puppet program. It declares resources that define state to be enforced on a node.
What are Puppet manifests written in?
Puppet manifests are written in a Puppet-specific language that is similar to Ruby, where each manifest uses a . pp file extension. The Puppet site manifest (site. pp) is the main file that Puppet uses to define global system configuration.
How do you use Puppet modules?
To install a module from the Forge, run the puppet module install command with the long name of the module. The long name of a module is formatted as – . For example, to install puppetlabs-apache , run: puppet module install puppetlabs-apache.
Where are Puppet modules?
On Windows: C:/ProgramData/PuppetLabs/code/environments/production/modules;C:/ProgramData/PuppetLabs/code/modules.
What language are Puppet modules written in?
Ruby
Contains custom facts, written in Ruby. Contains custom functions, resource types, and resource providers: puppet/functions/ : Contains functions written in Ruby for the modern Puppet::Functions API.
How do you create a Puppet module?
- Step 1 — Install Puppet in Standalone Mode.
- Step 2 – Install Apache and MySQL Modules.
- Step 3 – Create a New Module for WordPress.
- Step 4 – Create a Manifest to Install Apache and PHP.
- Step 5 – Create a File to Store Configuration Variables.
- Step 6 – Create a Manifest for MySQL.
- Step 7 – Download the Latest WordPress.
What is Puppet node?
A node definition, also known as a node statement, is a block of Puppet code that is included only in matching nodes’ catalogs. This allows you to assign specific configurations to specific nodes. Put node definitions in the main manifest, which can be a single site. pp file, or a directory containing many files.
Where does Puppet look for modules?
modulepath
The list of directories where Puppet looks for modules is called the modulepath. The modulepath is set by the current node’s environment. The modulepath is an ordered list of directories, with earlier directories having priority over later ones.
Does Puppet use Python?
puppet-python Puppet module for installing and managing python, pip, virtualenvs and Gunicorn virtual hosts. Please note: The module stankevich/python has been deprecated and is now available under Vox Pupuli: puppet/python.
What is a class in puppet?
Classes are named blocks of Puppet code that are stored in modules and applied later when they are invoked by name. You can add classes to a node’s catalog by either declaring them in your manifests or assigning them from an external node classifier (ENC).
What is Puppet Forge?
Puppet Forge is a catalogue of modules created by Puppet, our partners, and community that helps IT ops practitioners supercharge and simplify their automation processes. With step-by-step guides and tutorials, Puppet Forge provides a platform for you to grow your skills with Puppet, whatever your current level.
What are the components of a puppet manifest file?
Puppet manifest consists of the following components −. Files (these are plain files where Puppet has nothing to do with them, just to pick them up and place them in the target location) Resources. Templates (these can be used to construct configuration files on the node).
How do I create a module in puppet?
To create a module, you must create a directory (whose name matches your module name) in Puppet’s modules directory, and it must contain a directory called manifests, and that directory must contain an init.pp file.
How do I override puppet’s default manifest ordering?
To override Puppet ‘s default manifest ordering, declare an explicit relationship between resources. All relationships cause Puppet to manage specific resources before other resources. Relationships are not limited by evaluation-order; you can declare a relationship with a resource before that resource has been declared.
How do I install Apache manifests with puppet?
Manifests are composed of puppet code and their filenames use the .pp extension. The default main manifest in Puppet installed via apt is /etc/puppet/manifests/site.pp. If you have followed the prerequisite Puppet tutorial, you have already written a manifest that creates a file and installs Apache.
