October 2020
Beginner
250 pages
6h 21m
English
Content preview from Docker Deep Dive
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6: Images
In this chapter we’ll dive deep into Docker images. The aim of the game is to give you a solid understanding of what Docker images are, how to perform basic operations, and how they work under-the-hood.
We’ll see how to build new images with our own applications inside of them in a later chapter.
We’ll split this chapter into the usual three parts:
- The TLDR
- The deep dive
- The commands
Docker images - The TLDR
A Docker image is a unit of packaging that contains everything required for an application to run. This includes; application code, application dependencies, and OS constructs. If you have an application’s Docker image, the only other thing you need to run that application is a computer running Docker.
If you’re a former VM ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.