April 2018
Intermediate to advanced
374 pages
8h 35m
English
Content preview from Kubernetes for Developers
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Example – Python/Flask deployment with ConfigMap
This example builds on our earlier Python/Flask example. This extension will add a ConfigMap that uses both environment variables and structured files, as well as code updates to consume and use those values.
To start, add a ConfigMap with both top-level values and a deeper configuration. The top values will be exposed as environment variables, and the multiline YAML will be exposed as a file inside the container:
# CONFIGURATION FOR THE FLASK APPkind: ConfigMapapiVersion: v1metadata: name: flask-configdata: CONFIG_FILE: “/etc/flask-config/feature.flags“ feature.flags: | [features] greeting=hello debug=true
This ConfigMap is mapped with updates to the Pod specification of the deployment with ...
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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.