How to Install Ruby on Rails on Debian 12

If you’re looking to Install Ruby on Rails on Debian 12, you’re in the right place! Ruby on Rails is a powerful framework for building web applications, and setting it up on Debian 12 is straightforward. Here’s how I did it: Step 1: Update Your System

Before installing anything, update your system to ensure all packages are up to date: bash Copy

sudo apt update && sudo apt upgrade -y

Step 2: Install Dependencies

Ruby on Rails requires several dependencies. Install them using: bash Copy

sudo apt install curl git build-essential libssl-dev libreadline-dev zlib1g-dev libsqlite3-dev

Step 3: Install Ruby Using rbenv

The default Ruby version on Debian 12 might be outdated, so we’ll use rbenv to install and manage Ruby versions:

Install rbenv and ruby-build:
bash
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curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-installer | bash

Add rbenv to your shell:
Add the following lines to your ~/.bashrc file:
bash
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export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

Then, reload your shell:
bash
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source ~/.bashrc

Install Ruby:
Install the latest stable version of Ruby (e.g., Ruby 3.2.2):
bash
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rbenv install 3.2.2
rbenv global 3.2.2

Verify the installation:
bash
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ruby -v

You should see the installed Ruby version.

Step 4: Install Rails

With Ruby installed, you can now install Rails: bash Copy

gem install rails

Verify the installation: bash Copy

rails -v

Step 5: Set Up a Database

Rails applications typically use a database. Install MySQL or PostgreSQL based on your preference. Option 1: Install MySQL bash Copy

sudo apt install mysql-server libmysqlclient-dev

Configure MySQL and create a database for your Rails app. Option 2: Install PostgreSQL bash Copy

sudo apt install postgresql postgresql-contrib libpq-dev

Set up a PostgreSQL user and database for your Rails app. Step 6: Create a New Rails Application

Now that everything is set up, create a new Rails application: bash Copy

rails new myapp -d mysql # Use postgresql if you installed PostgreSQL cd myapp

Step 7: Configure the Database

Edit the config/database.yml file to match your database settings. For example, for MySQL: yaml Copy

default: &default adapter: mysql2 encoding: utf8mb4 pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %> username: root password: yourpassword socket: /var/run/mysqld/mysqld.sock

Run the database setup: bash Copy

rails db:setup

Step 8: Start the Rails Server

Finally, start the Rails server: bash Copy

rails server

Visit http://localhost:3000 in your browser to see your Rails app in action! Troubleshooting Common Issues

Ruby Installation Fails:
Ensure all dependencies are installed and try again.

Database Connection Issues:
Double-check your database.yml file and ensure the database service is running.

Permission Errors:
Use sudo where necessary or adjust file permissions.

Why Install Ruby on Rails on Debian 12?

Debian 12 is a stable and secure operating system, making it an excellent choice for hosting Ruby on Rails applications. By following this guide, you can set up a robust development environment that’s ready for building modern web applications. Conclusion

If you’re looking to Install Ruby on Rails on Debian 12, this guide provides a clear and actionable roadmap. Whether you’re a beginner or an experienced developer, this setup will give you a solid foundation for your Rails projects. If you found this guide helpful, feel free to share it and link back to it for others who want to Install Ruby on Rails on Debian 12.