In this tutorial we will show you how to install Ruby on Rails on CentOS 8. For those of you who didn’t know, Ruby on Rails (RoR) is a framework written in the Ruby programming language that allows you to use Ruby in combination with HTML, CSS, and similar programming languages. It is used by many developers since it makes the application development very simple.
This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Ruby on Rails on a CentOS 8 server.
Install Ruby on Rails on CentOS 8
Step 1. First let’s start by ensuring your system is up-to-date.
sudo dnf update sudo dnf install curl gnupg2 tar
Step 2. Installing Ruby.
Now, we download and run the RVM installation script:
curl -sSL https://get.rvm.io | bash
Finally, the system environment variables need to be refreshed, so that the ruby variables are added:
Then we can check out all the versions of Ruby that we can install with RVM:
rvm list known
And finally install the version we want, in this case, I will choose 2.7.2:
rvm install 2.7.2
When the installation is finished, we can query for the version of Ruby:
Step 3. Installing Rails.
To install Rails on your CentOS 8 system, you can run the following command:
gem install rails
However, we can also specify a specific version:
gem install rails -v [version]
To check the version of Rails, you can execute the command below:
[email@example.com ~]# rails -v Rails 18.104.22.168
Congratulation’s! You have successfully installed Ruby on Rails. Thanks for using this tutorial for installing Ruby on Rails on CentOS 8 systems. For additional help or useful information, we recommend you to check the official Ruby on Rails website.