Learning Puppet 4

Appendix C. Installing Ruby

In this appendix, we will cover how to install Ruby on your personal system. To install the exact same version of Ruby utilized by Puppet, run the following command on one of the test hosts:

[vagrant@client ~]$ /opt/puppetlabs/puppet/bin/ruby --version
ruby 2.1.8p440 (2015-12-16 revision 53160) [x86_64-linux]

As of the last update of this book, Puppet uses Ruby 2.1.8.

Ruby for Mac

Macintosh systems come with a modern version of Ruby installed. You can utilize the system Ruby successfully for every purpose in this book. The only thing necessary is to install the Bundler gem:

$ sudo gem install bundler --no-ri --no-rdoc
Fetching: bundler-1.11.2.gem (100%)
Successfully installed bundler-1.11.2
1 gem installed

If you’d prefer to install the exact version of Ruby that Puppet uses, install HomeBrew and then use the following commands:

$ brew install rbenv ruby-build
...
$ eval "$(rbenv init -)"
$ rbenv install 2.1.8
...
$ rbenv shell 2.1.8

Any time you wish to utilize this version of Ruby, just run these commands again:

$ eval "$(rbenv init -)"
$ rbenv shell 2.1.8

Ruby for Windows

Install the latest Ruby 2.1 (or whatever version Puppet uses today) from RubyInstaller for Windows. You should also install the 64-bit DevKit for Ruby.

After these are installed, use the gem command to install Bundler:

C:\> gem install bundler --no-ri --no-rdoc
Fetching: bundler-1.11.2.gem (100%)
Successfully installed bundler-1.11.2
1 gem installed

Ruby for Linux ...