November 2017
Intermediate to advanced
298 pages
7h 10m
English
Content preview from Deployment with Docker
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DNS configuration
Speaking of DNS, we should probably talk a bit about Docker DNS handling. By default, Docker Engine uses the DNS settings from the host, but in some advanced deployment settings where the network that the cluster is being deployed in is within an already built-out network, there may be times when the engine or the container needs to be configured with a custom DNS setting or the DNS search prefix (also know as the domain name). In such cases, you are able to override the default DNS settings of the Docker Engine easily by adding the dns and/or dns-search parameters to /etc/docker/daemon.json and restarting the daemon. Both parameters allow multiple values and are pretty self-explanatory:
{ ... "dns": ["1.2.3.4", "5.6.7.8", ...Become 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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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.