Book Image

Mastering Ubuntu Server - Third Edition

By : Jay LaCroix
Book Image

Mastering Ubuntu Server - Third Edition

By: Jay LaCroix

Overview of this book

Ubuntu Server has taken data centers around the world by storm. Whether you're deploying Ubuntu for a large-scale project or for a small office, it is a stable, customizable, and powerful Linux distribution with innovative and cutting-edge features. For both simple and complex server deployments, Ubuntu's flexible nature can be easily adapted to meet to the needs of your organization. This third edition is updated to cover the advancements of Ubuntu 20.04 LTS and further train you to understand how to use Ubuntu Server, from initial deployment to creating production-ready resources for your network. The book begins with the concepts of user management, group management, and file system permissions. Continuing into managing storage volumes, you will learn how to format storage devices, utilize logical volume management, and monitor disk usage. Later, you will learn how to virtualize hosts and applications, which will include setting up QEMU & KVM, as well as containerization with both Docker and LXD. As the book continues, you will learn how to automate configuration with Ansible, as well as take a look at writing scripts. Lastly, you will explore best practices and troubleshooting techniques when working with Ubuntu Server that are applicable to real-world scenarios. By the end of this Ubuntu Server book, you will be well-versed in Ubuntu server’s advanced concepts and attain the required proficiency needed for Ubuntu Server administration.
Table of Contents (26 chapters)
24
Another Book You May Enjoy
25
Index

Managing LXD containers

With Docker out of the way, let's take a look at how to run containers with LXD. Let's dive right in and install the required package:

sudo snap install lxd

As you can see, installing LXD is just as easy as installing Docker. In fact, managing containers with LXD is very straightforward as well, as you'll soon see. Installing LXD gives us the lxc command, which is the command we'll use to manage LXD containers. Before we get going though, we should add our user account to the lxd group:

sudo usermod -aG lxd <yourusername>

Make sure you log out and log in for the changes to take effect. Just like with the docker group with Docker, the lxd group will allow our user account to manage LXD containers.

Next, we need to initialize our new LXD installation. We'll do that with the lxd init command:

lxd init

The output will look similar to the following screenshot:

Figure 17.3: Setting up LXD with...