June 2016
Intermediate to advanced
334 pages
6h 6m
English
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Understanding a plugin
So far, we have established that all the plugins that we have installed have actually nothing to do with Docker directly, so what does a plugin do?
Docker describes a plugin as:
"Docker plugins are out-of-process extensions which add capabilities to the Docker Engine."
This is exactly what we have seen when installing third-party tools, they all run alongside Docker as separate daemons.
Let's assume that we are going to be creating a volume plugin called mobyfs for the remainder of this chapter. The mobyfs plugin is a fictional service which is written in Go and it runs as a daemon.
Discovery
Typically, a plugin will be installed on the same host as the Docker binary. We can register our mobyfs plugin with Docker by creating the ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.