sinatra && rvm && unicorn && nginx

app.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'sinatra'
require 'haml'

class App < Sinatra::Application
  get '/' do
    haml :index
  end
end

config.ru

require './app'

use Rack::ShowExceptions

run App.new

#unicorn or unicorn -p 3000

Gemfile

#vim Gemfile

source 'http://rubygems.org'

gem 'sinatra'
gem 'shotgun'
gem 'haml'
gem 'sass'
gem 'unicorn'

#:wq
bundler install

nginx setup

# nginx setup

sudo -s
nginx=stable # use nginx=development for latest development version
add-apt-repository ppa:nginx/$nginx
apt-get update 
apt-get install nginx

# nginx start
sudo service nginx start

rvm

mkdir sinatra_app
echo rvm --create use 1.9.3@sinatra_app >> .rvmrc
echo rvm_trust_rvmrcs_flag = 1 >> .rvmrc

sinatra

cd sinatra_app
mkdir config
mkdir public
mkdir public/images
mkdir public/javascripts
mkdir public/stylesheets
mkdir views
vim app.rb

viewsindex.haml

%h1 
  Care Engine

%p
  This is the app! Hello world!