May 2017
Beginner
268 pages
6h 1m
English
Content preview from Puppet 4.10 Beginner's Guide - Second EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Managing Docker images
Of course, it's very useful to be able to download and run public images from Docker Hub or other registries, but to unlock the real power of Docker we need to be able to build and manage our own images too.
Building images from Dockerfiles
As we saw in the previous examples, if you don't already have the specified container image on your system, Puppet's docker::image resource will pull it from Docker Hub for you and save it locally.
The docker::image resource is most useful, however, for actually building Docker images. This is usually done using a Dockerfile, so here is an example Dockerfile we can use to build an image (Dockerfile.hello):
FROM library/alpine:3.1 CMD /bin/sh -c "while true; do echo Hello, world; sleep 1; ...
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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.