April 2018
Intermediate to advanced
468 pages
14h 34m
English
Content preview from Mastering Kubernetes - Second Edition
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Blue-green upgrades
Rolling updates are great for availability, but, sometimes, the complexity involved in managing a proper rolling update is considered too high, or it adds a significant amount of work that pushes back more important projects. In these cases, blue-green upgrades provide a great alternative. With a blue-green release, you prepare a full copy of your production environment with the new version. Now you have two copies, old (blue) and new (green). It doesn't matter which one is blue and which one is green. The important thing is that you have two fully-independent production environments. Currently, blue is active and services all requests. You can run all your tests on green. Once you're happy, you flip the switch and green ...
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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.