Initial commit

This commit is contained in:
Nick Janetakis
2014-05-03 13:42:45 -04:00
commit cf8ac7736c
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.DS_Store
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## What is ansible-ruby?
It is an [Ansible](http://www.ansible.com/home) 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
The only variable you need to concern yourself about is `ruby_version` if you're happy with the default download and install path.
```
ruby_version: 2.1.1 # X.X.X-pXXX format
ruby_temp_download_path: /usr/local/src
ruby_rvm_install_path: /usr/local/rvm
```
## Example playbook
For the sake of this mini 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 `yourplaybook/group_vars/app.yml` 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.
## License
MIT

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---
ruby_version: 2.1.1 # X.X.X-pXXX format
ruby_temp_download_path: /usr/local/src
ruby_rvm_install_path: /usr/local/rvm

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---
galaxy_info:
author: Nick Janetakis
description: Install a specific version of ruby using rvm.
company:
license: license (MIT)
min_ansible_version: 1.5
platforms:
- name: Ubuntu
versions:
- all
categories:
- development
dependencies: []

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---
- name: detect rvm installation
stat: path=/etc/profile.d/rvm.sh
register: rvm_installation
- name: ensure rvm installer is downloaded
get_url:
url: https://get.rvm.io
dest: "{{ ruby_temp_download_path }}/rvm-installer.sh"
when: not rvm_installation.stat.exists
- name: ensure rvm installer is configured
file:
path: "{{ ruby_temp_download_path }}/rvm-installer.sh"
mode: 0755
when: not rvm_installation.stat.exists
- name: ensure rvm stable is installed
command: "{{ ruby_temp_download_path }}/rvm-installer.sh --path {{ ruby_rvm_install_path }} stable"
when: not rvm_installation.stat.exists
- name: ensure rvm installer is deleted
file:
path: "{{ ruby_temp_download_path }}/rvm-installer.sh"
state: absent
when: not rvm_installation.stat.exists
- name: ensure rvm installs ruby dependencies
command: "{{ ruby_rvm_install_path }}/bin/rvm autolibs 3"
when: not rvm_installation.stat.exists
- name: detect if ruby version is installed
stat: path={{ ruby_rvm_install_path }}/rubies/ruby-{{ ruby_version }}
register: installed_ruby_version
- name: ensure ruby is installed
command: "{{ ruby_rvm_install_path }}/bin/rvm install ruby-{{ ruby_version }}"
when: not installed_ruby_version.stat.exists
- name: detect default ruby version
command: /usr/local/rvm/bin/rvm alias list default
register: ruby_selected
- name: ensure default ruby is selected
shell: source /etc/profile.d/rvm.sh && rvm use ruby-{{ ruby_version }} --default executable=/bin/bash
when: ruby_selected.stdout == '' or ruby_version not in ruby_selected.stdout