New initializes a new engine.

NewInput returns a new Input object with no source attached.

NewOutput returns a new Output object with no destinations attached.

Tail reads from `src` line per line, and returns the last `n` lines as an array.

The Engine is the core of Docker.

A job is the fundamental unit of work in the docker engine.

Installer is a standard interface for objects which can "install" themselves on an engine by registering handlers.