Overview

NOTE: Replace this text with your own description.

This project utilizes Test Kitchen to test puppetcode. You can use this template to write new puppet modules or to enhance existing modules.

Review the upstream documentation to find out how to use it in your own project

It provides the following aspects:

• puppet template with demo code which installs a lighthttpd
• convenient development environment
  • download and create a ubuntu and debian image in a virtualbox environment
  • download and create a ubuntu docker image
  • basic installation of puppet 4/5 client
  • automatic installation of puppet modules specified in the "Puppetfile" using librarian
• check the setup using serverspec tests executed in the environment

Why do i need that?

• provide convenient test setups for system development
• reduce the need to develop on production or shared testsystems
  (sometimes you still need this, i.e. if you need special hardware to test your implementation)
• test multiple variants of a setup on different operating systems
  (Ubuntu, CentOS, OpenSuse, ...)
• prevent time consuming and git history polluting edit locally, commit/push, puppet execution roundtrips
• automatically install needed puppet modules
• easily test defined combinations of modules/roles
• integrate automated tests to your ci-pipeline (i.e. jenkins)
• reduce resource overhead by simply throwing away outdated setups
• Execute tests remotely end very time efficient on AWS/EC2, Openstack, Vagrant, ...

Resources

• this project is based/located on https://github.com/scoopex/puppet-kitchen_template
• test kitchen:
  • http://kitchen.ci/
  • https://docs.chef.io/kitchen.html
  • https://github.com/test-kitchen/test-kitchen
  • https://docs.chef.io/config_yml_kitchen.html
  • https://docs.chef.io/plugin_kitchen_vagrant.html
  • https://github.com/neillturner/kitchen-puppet/blob/master/provisioner_options.md
• serverspec tests
• resources : http://serverspec.org/resource_types.html
• puppet modules: https://forge.puppet.com/
• puppet FAQ: https://ask.puppet.com/question/32373/is-there-a-document-on-how-to-setup-test-kitchen-with-puppet/
• misc
• https://de.slideshare.net/MartinEtmajer/testdriven-infrastructure-with-puppet-test-kitchen-serverspec-and-rspec
• http://ehaselwanter.com/en/blog/2014/05/08/using-test-kitchen-with-puppet/
• https://apache.googlesource.com/infrastructure-puppet-kitchen/
• Librarian: http://librarian-puppet.com/

Basic Installtion of the Tooling

• Install virtualbox: https://www.virtualbox.org/wiki/Linux_Downloads
• Installation of vagrant
• see: https://www.vagrantup.com/downloads.html
• Download und Installation

  cd /tmp
  wget https://releases.hashicorp.com/vagrant/2.0.1/vagrant_2.0.1_x86_64.deb
  sudo dpkg -i vagrant_*_x86_64.deb
  

• Install docker https://docs.docker.com/engine/installation/linux/docker-ce/ubuntu/#install-docker-ce
• Add yourself to the docker and vbox group and relogin to your desktop session
• Installation of RVM

  • Follow the offical installation procedure at https://rvm.io/, i.e.:

    gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB 
    curl -sSL https://get.rvm.io | bash -s stable
    # source this or add this to your .bashrc
    source ~/.rvm/scripts/rvm
    exec bash
    # asks for root password and installs packages like libyaml-dev, libsqlite3-dev, libgdbm-dev, libncurses5-dev, bison, libreadline6-dev
    rvm install "ruby-2.4.9"
    

  • Configuration of RVM
    After the rvm installtion a configuration file (~/.rvmrc) should be created with the following content:

    echo "rvm_autoinstall_bundler_flag=1" >> ~/.rvmrc
    sudo apt install ruby-dev libgmp-dev
    gem install bundler
    # Now the automatic invocation of bundler should install all the missing gems
    cd ..; cd puppet-kitchen_template
    

    This allows the convinient automatic installation of bundler.

  • Install Ruby, work with control repositories There are numerous possibilities to work with RVM - we are unsing the Gemfile procedure. see: Gemfile

    source 'https://rubygems.org'
    
    #ruby=2.0.0-p645
    #ruby-gemset=puppet-testing
    
    (...)
    

    The entries with the leading hashes (#) are not disabled entries. You have to install the configured ruby release in a manual procedure. You will get a notification "Required ruby-2.4.1 is not installed." if this step is missing.

    "test-kitchen": Serverspec Test mit Vagrant/Virtualbox/Docker

• Kitchen Bash Completion

  mkdir -p ~/.kitchen
  cd ~/.kitchen
  wget https://github.com/MarkBorcherding/test-kitchen-bash-completion/blob/master/kitchen-completion.bash
  grep -q kitchen-completion.bash ~/.bashrc || echo "source ~/.kitchen/kitchen-completion.bash" >> ~/.bashrc
  exec bash
  

• Clone the repo

  git clone https://github.com/scoopex/puppet-kitchen_template.git
  cd puppet-kitchen_template
  

• Test it

  kitchen create default-ubuntu20-kitchen-template
  kitchen converge default-ubuntu20-kitchen-template
  kitchen verify default-ubuntu20-kitchen-template
  

Play with the environment

Review the upstream documentation to find out how to use it in your own project

• Change to the directory

  git clone https://github.com/scoopex/puppet-kitchen_template.git
  mv puppet-kitchen_template
  

• Reset the environment
  (if you want to revert everything)

  kitchen destroy
  rm -rf Gemfile.lock Puppetfile.lock .kitchen .librarian/ .tmp/ 
  git init .
  

• Add Puppet modules and edit sourcecode

  vim Puppetfile 
  vim manifests/* 
  vim test/integration/default/serverspec/*
  

• Deploy a test system and login to the system for debugging purposes

  kitchen list
  kitchen create <instance>
  kitchen login <instance>
     sudo bash
  

• Execute puppet withe the current code

  kitchen converge <instance>
  

• Execute serverspec tests

  kitchen verify <instance>
  

• Destroy environment

  kitchen destroy <instance>
  

• Inspect instance changes:
  • Login to instance, and become root

    kitchen login <instance name>
    sudo -i
    

  • Inspect changes

    cd /etc/
    git diff
    git checkout <file>
    

Cheat Sheet

Command                              Description
------------------------------------------------------------------------
kitchen list                         View all test suites
kitchen create                       Create the target system (Vagrant)
kitchen create <suite>
kitchen converge <suite>             Execute puppet (Puppet)
kitchen login <suite>                SSH Login
kitchen verify <suite>               Execute test suites (servespec)
kitchen test <suite>                 Create, test and destroy system
kitchen destroy                      Destroy all test systems
kitchen destroy <suite>              Destroy a certain test system

kitchen verify -l debug              Get enhanced debug information

librarian-puppet install --verbose   Debug librarian problems
librarian-puppet show --detailed     Show librarian dependencies

vagrant box list                     Show all vargrant boxes
vagrant box remove <box>             Remove a vagrant box to fetch 
                                     a new release on next 
                                     "kitchen create"
------------------------------------------------------------------------

Instance selection/handling:

• Use "kitchen list" to identify instances
• Modify the instances by editing '.kitchen.yml'
• Kitchen automatically create all permutations of suites and platforms, see .kitchen.yml
• Modify bootstrap code for the vagrant systems in './vagrantfiles'
• Add the full name of the instances to a certain command
  • Kitches selects instances by regex matches, so think about naming schemes
  • If you do not specify the wildcard all regex ('.*')is automatically assumed