March 2020
Beginner
592 pages
14h 14m
English
Content preview from Learn Docker - Fundamentals of Docker 19.x - Second Edition
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Blue-green deployments
In blue-green deployments, the current version of the application service, called blue, handles all the application traffic. We then install the new version of the application service, called green, on the production system. The new service is not wired with the rest of the application yet.
Once green is installed, we can execute smoke tests against this new service and, if those succeed, the router can be configured to funnel all traffic that previously went to blue to the new service, green. The behavior of green is then observed closely and, if all success criteria are met, blue can be decommissioned. But if, for some reason, green shows some unexpected or unwanted behavior, the router can be reconfigured to return ...
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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.