How to Install OpenNebula on Arch Linux

OpenNebula is an open-source cloud computing platform that allows you to create and manage virtualized computing environments. In this tutorial, we will show you how to install OpenNebula on Arch Linux.

Prerequisites

Before we start with the installation process, you need to make sure that your system meets the following requirements:

• Arch Linux installed on a supported architecture
• Root access to the system or a user account with sudo privileges
• A MySQL or MariaDB database server installed and running

Step 1: Update the system

First, you need to update your Arch Linux system’s package repository and installed packages to ensure that you are using the latest available versions of software.

sudo pacman -Syu

Step 2: Install dependencies

OpenNebula has several dependencies that need to be installed before we proceed with the installation. The following command will install all the necessary dependencies:

sudo pacman -S git ruby sqlite3 xmlrpc-c make gcc patch pkg-config openssl rsync

Step 3: Install Ruby gems

To install OpenNebula on Arch Linux, you need to install several Ruby gems. The following command will install all the required Ruby gems:

sudo gem install bundler
sudo bundle install --gemfile /usr/share/one/Gemfile

Step 4: Download and extract OpenNebula

Use the following command to download the latest version of OpenNebula:

curl -O https://github.com/OpenNebula/one/archive/release-6.0.0.tar.gz

Extract the downloaded file to the /tmp/one directory:

tar zxf release-6.0.0.tar.gz -C /tmp

Step 5: Configure and install OpenNebula

The next step is to configure OpenNebula and install it on your system:

cd /tmp/one-release-6.0.0
sudo ./install.sh -d /usr/share/one -l /var/log/one -s /var/lib/one -m /usr/bin -u oneadmin -g one -b

This command will:

• Install OpenNebula in the /usr/share/one directory.
• Store log files in the /var/log/one directory.
• Store data in the /var/lib/one directory.
• Install the OpenNebula binaries in the /usr/bin directory.
• Set the user and group ownership of the OpenNebula directories to oneadmin and one.
• Build and install OpenNebula’s dependencies using the –b flag.

Step 6: Configure MySQL or MariaDB database

OpenNebula requires a MySQL or MariaDB database server to store data. If you haven't installed one yet, run the following command to install MariaDB:

sudo pacman -S mariadb

Once the database server is installed, create a database and user for OpenNebula:

mysql -u root -p

CREATE DATABASE opennebula;
CREATE USER 'opennebula'@'localhost' IDENTIFIED BY 'your_password_here';
GRANT ALL PRIVILEGES ON opennebula.* TO 'opennebula'@'localhost';
FLUSH PRIVILEGES;

Replace your_password_here with a strong password.

Step 7: Configure OpenNebula

The final step is to configure OpenNebula by editing the /etc/one/oned.conf file:

sudo nano /etc/one/oned.conf

In the [DATABASE] section, configure the server, database, user, and password options to match the MySQL/MariaDB credentials you set up in the previous step.

DB = [ DRIVER = "mysql", SERVER = "localhost", PORT = 0, USER = "opennebula", PASSWD = "your_password_here", DB_NAME = "opennebula" ]

Save and close the file.

Step 8: Start and enable OpenNebula

Finally, start and enable the OpenNebula service:

sudo systemctl start opennebula
sudo systemctl enable opennebula

Conclusion

That’s it! You have successfully installed and configured OpenNebula on Arch Linux. You can now use it to create and manage virtualized computing environments.

If you want to self-host in an easy, hands free way, need an external IP address, or simply want your data in your own hands, give IPv6.rs a try!

Alternatively, for the best virtual desktop, try Shells!