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A sysadmin's guide to containers

Aug 28, 2018, 08:00 (0 Talkback[s])
(Other stories by Daniel J Walsh)

The term "containers" is heavily overused. Also, depending on the context, it can mean different things to different people.

Traditional Linux containers are really just ordinary processes on a Linux system. These groups of processes are isolated from other groups of processes using resource constraints (control groups [cgroups]), Linux security constraints (Unix permissions, capabilities, SELinux, AppArmor, seccomp, etc.), and namespaces (PID, network, mount, etc.).

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