Book Image

Containerization with LXC

Book Image

Containerization with LXC

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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface

LXC container hooks


LXC provides a convenient way to execute programs during the life cycle of containers. The following table summarizes the various configuration options available to allow this feature:

Option

Description

lxc.hook.pre-start

A hook to be run in the host namespace before the container ttys, consoles, or mounts are loaded

lxc.hook.pre-mount

A hook to be run in the container's filesystem namespace, but before the rootfs has been set up

lxc.hook.mount

A hook to be run in the container after mounting has been done, but before the pivot_root

lxc.hook.autodev

A hook to be run in the container after mounting has been done and after any mount hooks have run, but before the pivot_root

lxc.hook.start

A hook to be run in the container right before executing the container's init

lxc.hook.stop

A hook to be run in the host's namespace after the container has been shut down

lxc.hook.post-stop

A hook to be run in the host's namespace after the container has been shut down...