Deploying an Ubuntu 20.04 LTS (Focal Fossa) Instance on Scaleway

• Ubuntu
• focal-fossa

Ubuntu is one of the most popular Linux distributions. First released in 2004, Ubuntu quickly became the favorite Linux distribution for users around the world, mostly because it is easy to install and use.

Ubuntu is developed and maintained by the company Canonical and a large community. Their commercial and community teams release new versions of the distribution every six months and collaborate to produce a single, high-quality release with long-term support (LTS) every two years.

In this tutorial, you will learn how to deploy an Instance with Ubuntu 20.04 LTS (Focal Fossa) from the Scaleway console and configure it for hosting your apps and websites.

Before you start

To complete the actions presented below, you must have:

• A Scaleway account logged into the console
• Owner status or IAM permissions allowing you to perform actions in the intended Organization
• An SSH key
• Basic knowledge of Linux commands

Deploying your Ubuntu Linux Instance from the Scaleway console

1. Click Instances in the Compute section of the side menu. The Instances page displays.
2. Click Create Instance. The Instance creation wizard displays.
3. Configure your Instance:
   • Choose an Availability Zone
     • An Availability Zone refers to the geographical location in which your Instance will be created.
   • Select the Instance type
     • Scaleway provides different Instance types, designed for specific use cases. Choose the configuration that fits your requirements.
   • Choose an image for your Instance
     • Select the Ubuntu 20.04 Focal Fossa image from the OS images tab.
   • Configure the storage options
     • For the ease of this tutorial, leave the default storage options in place.
   • Enter a name and optional tags
     • Tags can help to organize your Instances
   • Check your SSH key displays in the list of keys authorized to access the Instance.
   • Click Create Instance to create the Instance.

Once your Instance is ready, it displays in the list of your Instances.

Logging into the root account

1. Click your Instance name on the Instances list. Your Instance’s information displays.
2. Navigate to the SSH command section and click Copy to copy the command into the clipboard.
3. Open a terminal and paste the command in the terminal:

    ssh root@your_instance_id
   

   Tip

   A warning about host authenticity appears upon the first connection to the Instance. Accept it to proceed.

Updating your system

Ubuntu uses the Advanced Packaging Tool (APT) to manage its 60,000+ pre-compiled software packages. The APT package index is a collection of available packages, and it generates the repositories defined in the file /etc/apt/sources.list, and from the directory /etc/apt/sources.list.d.

1. Run the following command to update the APT package index:

   apt update
   

2. Upgrade the packages already installed on your Instance to the latest version available in Ubuntu’s repositories by running the following command:

   apt upgrade
   

To install additional software packages, use the apt install command:

apt install packagename

Adding regular users on Ubuntu

As previously mentioned, we do not recommend always connecting to your Instance as root. Instead, create additional regular users to log into your Instance.

1. Run the following command to create a new user, named scaler:

   adduser scaler
   

2. Answer the questions, starting with the account password. Make sure to use a strong password and optionally fill in any of the other information. Confirm the response to each question by pressing Enter.
3. Add the users to the superdoers group (sudo) to be able to launch administrative tasks from this user, without the need to log in as root.

   adduser scaler sudo
   

   You can now run commands with administrative permissions by prefixing your command with sudo. For example: sudo apt upgrade.
4. Add the public SSH key information for the user by opening the file ~/.ssh/authorized_keys in a text editor and pasting the public key:

   nano ~/.ssh/authorized_keys
   

   Tip

   You can generate your SSH key pair on Linux or macOS directly from a terminal. On computers running Windows you can use PuTTYgen to generate your key pair.