Installing Vlad the Deployer on NixOS Latest

Vlad the Deployer is a tool for deploying Ruby on Rails applications. It automates many of the steps required to deploy a Rails application, making it faster and easier to deploy your application to production. In this tutorial, we will show you how to install Vlad the Deployer on NixOS Latest.

Prerequisites

Before we begin, make sure you have the following prerequisites:

• A computer running NixOS Latest
• Ruby and Rails installed on your computer

Step 1: Install Vlad the Deployer

To install Vlad the Deployer, we need to add the vlad package to our NixOS system. To do this, open a terminal and run the following command:

$ sudo nix-env -iA nixos.vlad

This command will install Vlad the Deployer on your system.

Step 2: Configure Vlad the Deployer

Next, we need to configure Vlad the Deployer to work with our Rails application. We will create a deploy.rb file in our Rails application directory and add the following code:

require 'vlad'

set :application, 'my_app'
set :repository,  '[email protected]:myusername/my_app.git'
set :deploy_to,   '/var/www/my_app'

role :app, "my_app.com"
role :web, "my_app.com"
role :db,  "my_app.com", :primary => true

set :user, "deploy"
set :scm, :git
set :branch, "master"
set :deploy_via, :remote_cache

Make sure to replace my_app with the name of your Rails application and myusername with your Github username.

Step 3: Deploy your application

Now that Vlad the Deployer is installed and configured, we can deploy our Rails application to production. To do this, simply run the following command in your Rails application directory:

$ vlad deploy

Vlad the Deployer will take care of the rest and deploy your application to production.

Conclusion

In this tutorial, we showed you how to install and use Vlad the Deployer to deploy your Ruby on Rails application to production. With the right tools and a little know-how, deploying your Rails application to production can be a breeze.