How To Install Rails and Nginx with Passenger on Ubuntu

<div dir="ltr" style="text-align: left;" trbidi="on"> <h1 class="entry-title" itemprop="headline" style="background-color: #fdfdfd; box-sizing: border-box; color: #333333; font-family: proxima-nova, 'Helvetica Neue', Helvetica, Arial, sans-serif; line-height: 1.1; margin: 21px 0px 0px; text-align: center;"> <span style="font-size: x-large;"><u>Rails and Nginx with Passenger on Ubuntu</u></span></h1> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><b>Ruby on Rails</b> is an open source web application framework which runs on the Ruby programming language. It allows the developers creating pages and applications that gather information from the web server, talk to or query the database, and render templates out of the box directly to the internet browsers.</span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">As a result, Rails features a routing system that is independent of the web server. The web server is used to render the content only. The choice for that would be <a href="http://www.hackthesec.co.in/search/label/NGINX">Nginx</a>. Nginx is fast <a href="http://www.hackthesec.co.in/search/label/web_server">webserver</a> with a strong focus on high concurrency, high performance and low memory usage.</span></span></div> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5IAqI4NxXAwOw8JB251pBUe5CR4UMP6pnHs8ldjqwHeycoOKMvM9RekLjY4-_2-XXaH9CR-eDSLtXNPe4tlW2R5sF-UqbdHhPQW6ElAy8Y9YXmF8N5p_1S8gQs3TBOTQml7Ht0pK8uR0m/s1600/rails-www.hackthesec.co.in.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh5IAqI4NxXAwOw8JB251pBUe5CR4UMP6pnHs8ldjqwHeycoOKMvM9RekLjY4-_2-XXaH9CR-eDSLtXNPe4tlW2R5sF-UqbdHhPQW6ElAy8Y9YXmF8N5p_1S8gQs3TBOTQml7Ht0pK8uR0m/s1600/rails-www.hackthesec.co.in.jpg" /></a></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Before we proceed with installation, we should make sure that our system repositories are up to date:</span></span><span style="background-color: white; color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;">.</span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="color: white; line-height: 15.6px;"># sudo </span><span style="line-height: 15.6px;"><span style="color: lime;">apt-get </span></span><span style="color: white; line-height: 15.6px;">update</span><span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="line-height: 26px; white-space: normal;"> </span></span></span></pre> </div> <div> <div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Once we are up to date with the latest available packages, the next step is to install Ruby Version Manager. It is application that allows to manage several different ruby versions easily, we can install RVM and then load it with:</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># curl -L get.rvm.io | bash -s stable </span><span style="color: lime;"># source /usr/local/rvm/scripts/rvm</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">We must make sure that we have all dependencies from RVM. To make sure that we have all required dependencies, we execute the following command:</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># rvm </span><span style="color: lime;">requirements</span><span style="color: white;"> </span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;">It will make sure that we are up to date and install the missing requirements (if any). Once we have RVM installed and configured, we can proceed to install and configure Ruby.</span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># rvm </span><span style="color: orange;">install 1.9.3</span><span style="color: white;"> # rvm </span><span style="color: lime;">use 1.9.3 --default</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">These two commands will install Ruby and set the system to use version 1.9.3 by default. The next step is to make sure we have all components for Ruby on Rails. Ruby Gems is a package manager for the Ruby programming language that provides a standard format for distributing Ruby programs and libraries, a tool designed to easily manage the installation of gems, and a server for distributing them, we can install it with this command and then use it to install Rails:</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># rvm rubygems current </span><span style="color: lime;"># gem install rails</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">This process could take some time, but after it finish, Ruby on Rails is installed. Next, we need to make sure that we can easily deploy Ruby on rails to any web server. We will install and use Passenger for that. It will serve as interface or bridge for communication between Ruby and the web server, you can install it with the following command:</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="line-height: 15.6px;"><span style="font-size: large;"><span style="color: white;"># gem install </span><span style="color: lime;">passenger</span></span><span style="color: white;"> </span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif; font-size: 15px; line-height: 26px;">Once passenger is installed, the rest of the required setup is fully automated. We execute the command:</span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># </span><span style="color: lime;">rvmsudo passenger</span><span style="color: white;">-install-nginx-module</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Once we do this, it checks for all dependencies automatically and install those that are missing. If some manual user action is required, Passenger will tell us, as well as give us detailed instructions how to do it.</span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Now we need to configure <a href="http://www.hackthesec.co.in/search/label/NGINX">nginx</a> to “talk” to Passenger. In order to do that, we need to open the nginx configuration file (<b>/opt/nginx/conf/nginx.conf</b>), using our favorite editor and add the following:</span></span></div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;"><br /></span></span></div> <div> <pre style="background-color: whitesmoke; border-radius: 4px; border: 1px solid rgb(204, 204, 204); box-sizing: border-box; color: #333333; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: 14px; line-height: 1.42857; margin-bottom: 10.5px; overflow: auto; padding: 10px; word-break: break-all; word-wrap: break-word;"><code style="background-color: transparent; border-radius: 0px; box-sizing: border-box; color: inherit; font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; font-size: inherit; padding: 0px; white-space: pre-wrap;">server { listen 80; server_name example.com; passenger_enabled on; root /var/www/rails_app/public; }</code></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">In order to create our rails app, we need to install <a href="http://www.hackthesec.co.in/search/label/Nodejs_programming">Node</a>.js first</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: white;"># sudo apt-get </span><span style="color: lime;">install nodejs</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">Once that is that, we should go to our directory (in this case it is <b>/var/www/rails_app/public</b>) and create the application. After all this is installed and configured, we simply need to start Nginx.</span></span></div> <div> <pre style="background-attachment: scroll; background-clip: initial; background-color: #3c3c3c; background-image: none; background-origin: initial; background-position: 0px 0px; background-repeat: repeat; background-size: initial; border-radius: 4px; border: 1px solid rgb(229, 229, 229); margin-bottom: 20px; outline: 0px; overflow: auto; padding: 20px; vertical-align: baseline;"><span style="font-size: large;"><span style="line-height: 15.6px;"><span style="color: lime;"># rails new my_first_rails_app </span><span style="color: orange;"># sudo service nginx start</span></span></span></pre> </div> <div> <span style="color: #222222; font-family: Verdana, Geneva, sans-serif;"><span style="font-size: 15px; line-height: 26px;">We can try and access our new Ruby on Rails application using our browser. </span></span></div> </div> <div> </div> </div> <div> <a href="http://www.hackthesec.co.in/">www.hackthesec.co.in</a></div> </div>

How To Install Rails and Nginx with Passenger on Ubuntu

Rails and Nginx with Passenger on Ubuntu Ruby on Rails is an open source web application framework which runs on the Ruby programming l...

Read more »