March 2017
Intermediate to advanced
290 pages
5h 35m
English
Content preview from Troubleshooting DockerBecome 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,
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.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.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.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.
Super-privileged container
This concept is introduced in one of the Project Atomic blogs, by Redhat. It provides the capability to use a special/privileged container as an agent to control the underlying host. If we ship only the application code, we risk turning the container into a black box. There are many benefits to the host of packaging up an agent as a Docker container with the right access. We can bind in devices via -v /dev:/dev, which will help to mount devices inside the container without needing super-privileged access.
Using nsenter trick, allows you to run commands in another namespace, that is, if Docker has its own private mount namespace, with nsenter and the right mode we can reach out to the host and mount things in its namespace. ...
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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.
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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.