Sinatra app to deploy master branch based on SemaphoreApp payload

#ruby

#apache

#json

#sinatra

README

This Sinatra app is installed on our staging server as follows:

[wbrent@dev-web1 deploy]$ pwd

/var/www/deploy

[wbrent@dev-web1 deploy]$ tree

.
|-- Gemfile
|-- Gemfile.lock
|-- app.rb
|-- config.ru
|-- public
`-- tmp

Gemfile

source :rubygems

gem 'shotgun'
gem 'sinatra'
gem 'yajl-ruby'
gem 'tinder'

app.rb

post '/deploy' do

 json = request.body.read
 data = Yajl::Parser.parse(json)
 token = ENV['CAMPFIRE_TOKEN']
 subdomain = ENV['CAMPFIRE_SUBDOMAIN']
 chatroom = ENV['CAMPFIRE_CHATROOM']
 campfire = Tinder::Campfire.new subdomain, :token => token, :ssl_verify => false
 room = campfire.find_room_by_name(chatroom)
 commit = data['commit']

 if data['branch_name'] == 'master' && data['result'] == 'passed'
 room.paste <<-END_OF_MESSAGE
 Deploying to staging
 Commit SHA1: #{commit['id']}
 Author: #{commit['author_name']}
 #{commit['message']}"
 END_OF_MESSAGE

 command = "cd ~/path/to/deployment; git pull origin master; cap deploy staging"
 pipe = IO.popen(command)
 response = pipe.readlines
 else
 room.paste <<-END_OF_MESSAGE
 Skipping SemaphoreApp payload
 Branch: #{data['branch_name']} 
 Build status: #{data['result']}
 END_OF_MESSAGE
 end
end

config.ru

require 'rubygems'
require 'sinatra'
require 'yajl'
require 'tinder'
require File.dirname(__FILE__) + "/app.rb"
run Sinatra::Application

/etc/httpd/conf/httpd.conf

<VirtualHost *:80>
 ServerName your.ip.address
 DocumentRoot /var/www/deploy/public
 <Directory /var/www/deploy/public>
 AllowOverride all
 Options -MultiViews
 </Directory>
</VirtualHost>

For more UNIX tips, please check out
Learning the UNIX Command Line.

Enjoy,
Chip