Pupa

Pupa is a few things:

• Heavily inspired by puppetinabox
• Named after a haunted doll
• Licensed under the Apache License, Version 2.0
• A script to bootstrap a masterless (puppet apply) installation of Puppet 5 with r10k

pupa (the script)

The script in bootstrap/ and the associated configuration there will take care of getting your server ready to rumble with Puppet 5. It will use the Puppet 5 AIO packages to install Puppet and will use the version of Ruby and gem provided by that package in /opt/puppetlabs to install additional dependencies like r10k.

Contrary to previous version this repository no longer contains any of my customisations. It does in the Puppetfile include a few "must have" libraries and still includes a complete Rakefile to help you get going with development. From there on out you're on your own but there's a lot of very good documentation available for Puppet 5.

This has been designed to work with Debian/Ubuntu systems. It will go up in flames if you try to run this on anything else including other Debian derivatives for which the Puppetlabs APT repository does not provide a Puppet 5 release package.

What this script will attempt to do:

• Complain loudly at you if something we need is missing
• Fetch the release deb from the Puppetlabs APT mirror
• Install it (so that we get new sources.list.d entries)
• Refresh the APT sources
• Install the puppet-agent package (Puppet, cfacter, Facter, mcollective, Hiera)
• Install r10k and hiera-eyaml
• Write configuration for:
  • puppet: Set up some defaults for masterless mode
  • hiera: Set up the hierarchy
  • mcollective: Disables it
  • r10k: Set up where to clone environments from and how to deploy them

idempotency

Pupa tries to be fairly intelligent. If you have a look at the code you'll see that it does its best not to install packages or refresh sources if it detects it's not needed.

Once Puppet is installed we use it to configure the rest of the system for us. Though we incur a slight runtime penalty from calling Puppet a couple of times we gain all the benefits, including idempotency.

This means this script can be run in a continuous loop not ever taking any action that modifies the system except if its source files have been updated.

usage

In order to use Pupa:

• fork this repository
• edit bootstrap/r10k.yaml and make the remote key point to your fork
• edit bootstrap/hiera.yaml to your liking
• edit bootstrap/puppet.conf to your liking
• git clone your fork to your server (over HTTPS is easiest and requires no authentication if it's a public repo)
• run boostrap/pupa

Assuming nothing blew up you now have a functioning Puppet 5 installation. If something did go wrong you can tell Pupa to be a bit more verbose and instead run PUPA_LOGLEVEL=DEBUG bootstrap/pupa.

Developing

The provided Gemfile will take care of installing Puppet, Facter, Hiera, r10k etc. locally for you so you can work on manifests, run the tests and so forth.

$ bundle install
 Fetching gem metadata from https://rubygems.org/...........
 Fetching version metadata from https://rubygems.org/...
 Fetching dependency metadata from https://rubygems.org/..
 Resolving dependencies...
 [..]
 Bundle complete! 4 Gemfile dependencies, 17 gems now installed.
 Use `bundle show [gemname]` to see where a bundled gem is installed.

The Gemfile also installs puppet-lint and the puppetlabs_spec_helper gems. It used to include a number of additional plugins but most of these only signal support for puppet-lint 1.x breaking the installation of the bundle.

Please take a look at the puppet-lint plugin list on Vox Pupuli and pick which seem useful to you. Add those to the Gemfile but first check on Rubygems if they support puppet-lint 2.x.

A number of tasks are defined by the Rakefile:

$ rake -vT
rake beaker            # Run beaker acceptance tests
[..]
rake validate          # Check syntax of Ruby files and call :syntax and :metadata

You'll most likely want to use the test task:

$ rake test
---> syntax:manifests
---> syntax:templates
---> syntax:hiera:yaml
---> lint
---> spec: dist/profile
[..]

Finished in 1 second (files took 0.77317 seconds to load)
15 examples, 0 failures

Contributing

Contributions are always very welcome. Any change however should be motivated with a good explanation of why this change is necessary and generally have commits that:

• Are written in the imperative style
• Where a single commit represents a single feature
• Have a short subject
• Include as much text as needed in the body to motivate this change