Linux Shell Scripting Cookbook - Third Edition

Using Linux containers

Linux Container (lxc) packages provide the basic container functionality used by Docker and LXD container deployment systems.

A Linux container uses kernel level support for Control Groups (cgroups) and the systemd tools described in Chapter 12, Tuning a Linux System. The cgroups support provides tools to control the resources available to a group of programs. This informs kernel control about the resources that are available to the processes running in a container. A container may have limited access to devices, network connectivity, memory, and so on. This control keeps the containers from interfering with each other or potentially damaging the host system.