How to Install Judge0 CE on Fedora Server Latest

Judge0 CE is an open-source online code execution engine that enables developers to execute code in multiple languages. In this tutorial, we will guide you through the process of installing Judge0 CE on a Fedora Server Latest.

Prerequisites

To install Judge0 CE on Fedora, you will need:

A server running Fedora Server Latest.
Root or sudo access.

Step 1: Install Dependencies

Before installing Judge0, you need to install some dependencies. Run the following command to install them:

sudo dnf install -y @development-tools redis rabbitmq-server

Step 2: Install Ruby and RVM

To install Judge0, you need to have Ruby installed on your system. We recommend using the RVM (Ruby Version Manager) to install Ruby. Run the following commands to install RVM and Ruby:

sudo dnf install -y gnupg2
gpg2 --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
curl -sSL https://get.rvm.io | bash -s stable --ruby

After installing Ruby and RVM, run the following command to activate RVM:

source /etc/profile.d/rvm.sh

Step 3: Install Judge0

You can now install Judge0 CE using the following command:

gem install judge

Step 4: Configure Judge0

After installation, you need to configure Judge0. Run the following command to create the configuration file:

judge0-cli config

The configuration file will be created in the ~/.judge0-cli/config.yml directory.

Open the file using a text editor and modify the following settings:

# judge0-dir: /var/lib/judge0
redis-uri: redis://localhost:6379/0
rabbitmq-uri: amqp://guest:guest@localhost:5672/

Make sure to uncomment the judge0-dir setting and set the correct directory path to store the submissions.

After updating the configuration file, run the following command to start the Judge0 services:

sudo systemctl start judge0

You can also enable the services to start automatically during system boot by using the following command:

sudo systemctl enable judge0

Step 5: Verify Judge0 Installation

To verify if Judge0 is installed properly, run the following command:

judge0-cli ping

You should see a message similar to the following:

pong

Conclusion

In this tutorial, we have shown you how to install Judge0 CE on a Fedora Server Latest. You can now use Judge0 to execute code in multiple languages online.