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Ruby on Rails

Deploy ROR App Using NGINX

Last Updated on June 3, 2024

Tutorials Goals: Deploy ROR App Using NGINX

Don’t know how to deploy ROR App using NGINX? This tutorial is for you! We will discuss

Installing rvm
Configuring Ruby
Using NGINX as a reverse proxy using the Phusion Passenger module that will buffer requests and responses between users and your rails application.

Install RVM

RVM, or Ruby Version Manager, is a command-line tool that allows you to easily install, manage, and work with multiple ruby environments, from interpreters to sets of gems.

You need to install software-properties-common add PPA repositories if they do not exist.

sudo apt-get install software-properties-common

Add the PPA

sudo apt-add-repository -y ppa:rael-gc/rvm

Update the Packages using apt-get

sudo apt-get update

Install rvm using below command

sudo apt-get install rvm

Once all installation is completed, load the RVM to the system using the following command.

source /etc/profile.d/rvm.sh

Install and Configure Ruby

Fire the below command to install the latest stable version of ruby and set the default ruby version.

rvm install ruby
ruby --version  // will display ruby version

ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux]

rvm --default use ruby-3.0.0

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Install NodeJS and Yarn

We need to install javascript runtime for compiling asset pipeline in ruby on rails application.So we will use the NodeJs and Yarn package manager, which can be installed from the Nodesource repository.

Before installing Yarn and NodeJs, install some dependency

sudo apt install gcc g++ make

Add NodeJs NodeSource repository.

curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -

Add the GPG key and repository of the Yarn package manager.

curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

Update all available repositories and install nodejs and yarn using the apt command.

sudo apt update
sudo apt install yarn nodejs

You can check the version of node and yarn using the below command.

node --version (will print the installed node version)
yarn --version(will print the installed yarn version)

Install Rails

In this step, we will install the latest version of Rails through the RubyGem package manager. But before installing gems, we should update the RubyGem using the below command.

gem update --system

Install the latest version of rails.

gem install rails

Check the rails version

rails --version

Create a New Rails Application

Creating new rails project “< app_name >” using rails.

rails new <app_name>
cd <app_name>

Install Passenger and NGINX

Install the latest version of passenger.

gem install passenger

Run the Passenger Nginx module installer using rvmsudo and follow the on-screen instructions.

rvmsudo passenger-install-nginx-module

If you get an error then please run one of the below commands; after that rerun the previous command.

apt-get install libcurl4-openssl-dev or libcurl4-gnutls-dev

After installation, please validate the install by running the below command

rvmsudo passenger-config validate-install

All checks should pass. If any of the checks do not pass, please follow the suggestions on the screen.

Finally, check whether Nginx has started the Passenger core processes using

rvmsudo passenger-memory-stats

You should see Nginx processes as well as Passenger processes,as shown below.

File Location

Remember that at some point, rvmsudo passenger-install-nginx-module asked you where to install Nginx to, and asked you for a “prefix”, right? The prefix is the directory in which this new Nginx is installed. By default, the installer picks the directory /opt/nginx. In this section we will assume that you installed the default prefix directory. If you specified a different prefix, simply substitute /opt/nginx with the actual directory.

Nginx’s configuration files are then located in /opt/nginx/conf. Its log files are located in /opt/nginx/logs.

Moving towards to the next section of how to deploy ROR app using NGINX and start configuring NGINX.

Configure NGINX

Open nginx.conf using text editor

sudo vi opt/nginx/conf/nginx.conf

worker_processes  1;

events {
    worker_connections  1024;
}


http {
    passenger_root /home/sanket/.rvm/gems/ruby-3.0.0/gems/passenger-6.0.13;
    passenger_ruby /home/sanket/.rvm/gems/ruby-3.0.0/wrappers/ruby;

    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;

    server {
        listen       80;
        server_name  localhost;

        location / {
            root   html;
            index  index.html index.htm;
        }

       error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
    }
}

Replace the code snippet server { … } with the below snippet

server {
listen 80 default_server;
server_name localhost;  ## You can add your ip
passenger_enabled on;
passenger_app_env development;  ## you can add your environment here
root /public;
}

Start NGINX

Run the following command to start Nginx.

sudo /opt/nginx/sbin/nginx

Stop NGINX

Run the below command to stop Nginx.

sudo kill $(cat /opt/nginx/logs/nginx.pid)

Conclusion

I hope the purpose of landing on this tutorial has served you well. Are you keen to learn about ROR? Do you want to dive deep into advanced knowledge of ROR? Then ROR tutorials page is for you! Feel free to visit more such Ruby on Rails tutorials and explore fundamentals of ROR. If you have any questions, feedback, or suggestions, write us back without any hesitation.