November 2022
Intermediate to advanced
264 pages
6h 14m
English
Content preview from Operating OpenShift
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Chapter 1. Introduction
Operating distributed software is a difficult task. It requires humans with a deep understanding of the system they maintain. No matter how much automation you create, it will never replace highly skilled operations personnel.
OpenShift is a platform, built to help software teams develop and deploy their distributed software. It comes with a large set of tools that are built in or can be deployed easily. While it can be of great help to its users and can eliminate a lot of traditionally manual operations burdens, OpenShift itself is a distributed system that needs to be deployed, operated, and maintained.
Many companies have platform teams that provide development platforms based on OpenShift to software teams so the maintenance effort is centralized and the deployment patterns are standardized across the organization. These platform teams are shifting more and more into the direction of Site Reliability Engineering (SRE) teams, where software development practices are applied to operations tasks. Scripts are replaced by proper software solutions that can be tested more easily and deployed automatically using continuous integration/continuous delivery (CI/CD) systems. Alerts are transformed from simple cause-based alerts like “a high amount of memory is used on Virtual Machine 23” into symptom-based alerts based on Service Level Objectives (SLO) that reflect customer experience, like “processing of requests takes longer than we expect it to.” ...
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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.