Book Image

Containerization with LXC

By : Konstantin Ivanov
Book Image

Containerization with LXC

By: Konstantin Ivanov

Overview of this book

In recent years, containers have gained wide adoption by businesses running a variety of application loads. This became possible largely due to the advent of kernel namespaces and better resource management with control groups (cgroups). Linux containers (LXC) are a direct implementation of those kernel features that provide operating system level virtualization without the overhead of a hypervisor layer. This book starts by introducing the foundational concepts behind the implementation of LXC, then moves into the practical aspects of installing and configuring LXC containers. Moving on, you will explore container networking, security, and backups. You will also learn how to deploy LXC with technologies like Open Stack and Vagrant. By the end of the book, you will have a solid grasp of how LXC is implemented and how to run production applications in a highly available and scalable way.
Table of Contents (17 chapters)
Containerization with LXC
About the Author
About the Reviewer
Customer Feedback


In this chapter, we looked at how to back up LXC containers using Linux native tools such as tar and rsync, and LXC utilities such as lxc-copy. We looked at examples of how to create cold and hot standby LXC container backups using the iSCSI target as the LXC root filesystem and configuration files store. We also looked at how to deploy a shared network filesystem using GlusterFS, and the benefits of running multiple containers on the same filesystem, but on different hosts.

We also touched on how to monitor the state, health, and resource utilization of LXC containers using tools such as Monit and Sensu, and how to trigger actions, such as running a script to act on those alerts.

Finally, we reviewed one of the common autoscaling patterns, combining several tools to automatically create new containers based on alert events.

In the next chapter, we are going to look at a complete OpenStack deployment, which will allow us to create LXC containers utilizing smart schedulers.