2.2 KiB
What is ansible-ruby?
It is an ansible role to install a specific version of ruby without having to compile ruby on the machine you're setting up. It does this by using rvm under the hood.
What problem does it solve and why is it useful?
I wasn't happy with any of the solutions that existed because they required you to either compile ruby on your server or they were not idempotent. Compiling ruby on a low end VPS/instance could easily take 10 minutes and during that time your CPU is going to be pegged at 100%.
ansible-ruby solves this by using rvm to install 1 or more versions of ruby. It makes installing and upgrading ruby versions very easy.
Role variables
Below is a list of default values along with a description of what they do.
# Set the version of ruby you want to install.
ruby_version: 2.1.1 # X.X.X-pXXX format
# Where should the rvm-installer and other temp files be downloaded to?
ruby_temp_download_path: /usr/local/src
# Where should rvm be installed to?
ruby_rvm_install_path: /usr/local/rvm
# Force upgrade the rvm-installer to the latest stable version.
ruby_rvm_force_upgrade_installer: false
# If you are concerned rvm stable might not be stable then
# you can set this to true so that rvm itself never upgrades.
ruby_rvm_skip_upgrade: false
Example playbook
For the sake of this example let's assume you have a group called app and you have a typical site.yml file.
To use this role edit your site.yml file to look something like this:
---
- name: ensure app servers are configured
- hosts: app
roles:
- { role: nickjj.ruby, tags: ruby }
Let's say you want to edit the default version, you can do this by opening or creating group_vars/app.yml which is located relative to your inventory directory and then making it look something like this:
---
ruby_version: 2.0.0
Installation
$ ansible-galaxy install nickjj.ruby
Requirements
Tested on ubuntu 12.04 LTS but it should work on other versions that are similar.
Ansible galaxy
You can find it on the official ansible galaxy if you want to rate it.
License
MIT