Set up an instance of Mastodon for Kosmos

Refs #19

Use new application cookbook, update our cookbooks

site-cookbooks/kosmos-ruby/CHANGELOG.md

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+# kosmos-ruby CHANGELOG
+
+This file is used to list changes made in each version of the kosmos-ruby cookbook.
+
+## 0.1.0
+- [your_name] - Initial release of kosmos-ruby
+
+- - -
+Check the [Markdown Syntax Guide](http://daringfireball.net/projects/markdown/syntax) for help with Markdown.
+
+The [Github Flavored Markdown page](http://github.github.com/github-flavored-markdown/) describes the differences between markdown on github and standard markdown.

site-cookbooks/kosmos-ruby/README.md

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+# kosmos-ruby Cookbook
+
+TODO: Enter the cookbook description here.
+
+e.g.
+This cookbook makes your favorite breakfast sandwich.
+
+## Requirements
+
+TODO: List your cookbook requirements. Be sure to include any requirements this cookbook has on platforms, libraries, other cookbooks, packages, operating systems, etc.
+
+e.g.
+### Platforms
+
+- SandwichOS
+
+### Chef
+
+- Chef 12.0 or later
+
+### Cookbooks
+
+- `toaster` - kosmos-ruby needs toaster to brown your bagel.
+
+## Attributes
+
+TODO: List your cookbook attributes here.
+
+e.g.
+### kosmos-ruby::default
+
+<table>
+  <tr>
+    <th>Key</th>
+    <th>Type</th>
+    <th>Description</th>
+    <th>Default</th>
+  </tr>
+  <tr>
+    <td><tt>['kosmos-ruby']['bacon']</tt></td>
+    <td>Boolean</td>
+    <td>whether to include bacon</td>
+    <td><tt>true</tt></td>
+  </tr>
+</table>
+
+## Usage
+
+### kosmos-ruby::default
+
+TODO: Write usage instructions for each cookbook.
+
+e.g.
+Just include `kosmos-ruby` in your node's `run_list`:
+
+```json
+{
+  "name":"my_node",
+  "run_list": [
+    "recipe[kosmos-ruby]"
+  ]
+}
+```
+
+## Contributing
+
+TODO: (optional) If this is a public cookbook, detail the process for contributing. If this is a private cookbook, remove this section.
+
+e.g.
+1. Fork the repository on Github
+2. Create a named feature branch (like `add_component_x`)
+3. Write your change
+4. Write tests for your change (if applicable)
+5. Run the tests, ensuring they all pass
+6. Submit a Pull Request using Github
+
+## License and Authors
+
+Authors: TODO: List authors
+

site-cookbooks/kosmos-ruby/attributes/default.rb

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+default['kosmos-ruby']['version'] = '2.3'

site-cookbooks/kosmos-ruby/metadata.rb

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+name             'kosmos-ruby'
+maintainer       'Kosmos'
+maintainer_email 'mail@kosmos.org'
+license          'All rights reserved'
+description      'Installs/Configures kosmos-ruby'
+long_description IO.read(File.join(File.dirname(__FILE__), 'README.md'))
+version          '0.1.0'

site-cookbooks/kosmos-ruby/recipes/default.rb

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+#
+# Cookbook Name:: kosmos-ruby
+# Recipe:: default
+#
+# Copyright 2017, Kosmos
+#
+# All rights reserved - Do Not Redistribute
+#
+
+package_name = "ruby#{node['kosmos-ruby']['version']}"
+
+apt_repository 'brightbox_ruby' do
+  uri 'http://ppa.launchpad.net/brightbox/ruby-ng/ubuntu'
+  distribution node['lsb']['codename']
+  components ['main']
+  keyserver 'keyserver.ubuntu.com'
+  key '80F70E11F0F0D5F10CB20E62F5DA5F09C3173AA6'
+end
+
+packages = [
+  "ruby#{node['kosmos-ruby']['version']}",
+  "ruby#{node['kosmos-ruby']['version']}-dev",
+  "build-essential",
+  "libssl-dev",
+  "zlib1g-dev"
+]
+
+apt_package packages do
+  action :install
+end
+
+apt_package 'ruby-switch' do
+  action :install
+  notifies :run, 'execute[set default ruby]', :immediately
+end
+
+execute 'set default ruby' do
+  command "ruby-switch --set #{package_name}"
+  action :nothing
+  notifies :reload, 'ohai[reload]', :immediately
+end
+
+ohai 'reload' do
+  action :nothing
+end
+
+execute 'update rubygems' do
+  command 'gem update --system 2.6.8'
+  not_if "gem --version | grep ^2.6.8$"
+end
+
+gem_package "bundler" do
+  version "1.13.2"
+end