119 lines
3.8 KiB
Markdown
119 lines
3.8 KiB
Markdown
## What is rvm1-ansible? [](http://travis-ci.org/nickjj/ansible-ruby)
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It is an [ansible](http://www.ansible.com/home) role to install and manage ruby versions using rvm.
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### What problem does it solve and why is it useful?
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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%.
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ansible-ruby solves this by using rvm to install 1 or more versions of ruby. It makes installing and upgrading ruby versions very easy.
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## Role variables
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Below is a list of default values along with a description of what they do.
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```
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# Which user should own all of rvm's files?
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rvm1_user: '{{ ansible_ssh_user }}'
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# Which group should rvm be installed to?
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rvm1_group: 'rvm'
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# Install 1 or more versions of ruby, just add them to the list.
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# The last version listed will be set as the default ruby.
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# Change it to `ruby_rubies:` if you want no rubies installed.
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rvm1_rubies:
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- 'ruby-2.1.2'
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# Where should the rvm-installer and other temp files be downloaded to?
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rvm1_temp_download_path: '/usr/local/src'
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# Where should rvm be installed to?
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rvm1_install_path: '/usr/local/rvm'
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# Which url or local path contains the rvm-installer script?
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# If you use a url, it must include http:// or https:// at the start.
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rvm1_rvm_latest_installer: 'https://raw.githubusercontent.com/wayneeseguin/rvm/master/binscripts/rvm-installer'
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# Which url or value contains the stable version number of rvm?
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# If you use a url, it must include http:// or https:// at the start.
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# If you use a value, it should be something like 1.25.27 or any legal version number.
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# If you want to lock rvm to a specific version you could enter in the version number
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# that you have installed and the role would assume you always have the latest stable version.
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rvm1_rvm_stable_version_number: 'https://raw.githubusercontent.com/wayneeseguin/rvm/master/VERSION'
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# Force upgrade the rvm-installer to the latest version.
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rvm1_rvm_force_upgrade_installer: false
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```
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## Exposed variables for use in other roles
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You will likely want to use various ruby related commands in other roles. This role exposes a number of popular paths and variables for easy access.
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- `rvm1_default_ruby_version`
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- The default ruby version that is selected
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- `rvm1`
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- The path to the rvm binary
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- `rvm1_default_wrappers`:
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- The path containing all of the wrapped ruby related binaries
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- `rvm1_ruby`
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- The path to the ruby binary
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- `rvm1_gem`
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- The path to the gem binary
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- `rvm1_bundle`
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- The path to the bundle binary
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- `rvm1_rake`
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- The path to the rake binary with bundle exec already applied
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### Example
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If you wanted to run a database migration in rails you would use `{{ rvm1_rake }} db:migrate`.
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## Example playbook
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For the sake of this example let's assume you have a group called **app** and you have a typical `site.yml` file.
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To use this role edit your `site.yml` file to look something like this:
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```
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---
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- name: ensure app servers are configured
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- hosts: app
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roles:
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- { role: nickjj.ruby, tags: ruby }
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```
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Let's say you want to edit a few values, 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:
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```
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---
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rvm1_rubies:
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- 'ruby-2.1.0'
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- 'ruby-2.1.2'
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rvm1_rvm_stable_version_number: 1.25.26
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```
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## Installation
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`$ ansible-galaxy install rvm_io.rvm1-ruby`
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## Requirements
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Tested on ubuntu 12.04 LTS but it should work on other versions that are similar.
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## Ansible galaxy
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You can find it on the official [ansible galaxy](https://galaxy.ansible.com/list#/roles/796) if you want to rate it.
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## License
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MIT
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