OpenShift for Developers: A Guide for Impatient Beginners 2nd Edition

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ISBN-13: 978-1098103361
ISBN-10: 109810336X
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From the Publisher

From the Preface

Software serves more people more critically than ever before. These two demands are generalized as scale and reliability. Over the past decade, the software industry has pursued scale and reliability with tactics, infrastructure, and cultural initiatives like DevOps, which sees developers share the operational responsibility of keeping applications running.

One set of tactics is the automation of operations chores: writing software to run your software. The automation of repetitive toil is among the keystones of Site Reliability Engineering (SRE), an IT discipline defined by the O’Reilly title of the same name. DevOps and its younger cousin GitOps both apply SRE’s automation ideas to development machinery and to the practice of building software. The simplest form might be the triggering of automatic construction and deployment processes whenever an application’s source code changes.

Modern software infrastructure pursues scale and reliability through distributed computing. Despite all the syllables, distributed computing just means making many computers act like one big computer. The assembled system can do more work (scale), and it can cast understudies for potential points of failure (reliability).

Kubernetes is a system for managing applications on distributed computers by encapsulating them in discrete, interchangeable artifacts called containers. Kubernetes can manage where and when containers run without knowing all about them and their dependencies. Kubernetes is termed a container orchestrator.

OpenShift uses Kubernetes orchestration at its core to harness computers together into a cluster. The computers that form the cluster are called nodes. OpenShift defines how those nodes relate and how work is performed on them. By packaging core distributed computing primitives with tools, policies, and interfaces for using them, OpenShift helps teams adopt modern practices from DevOps and GitOps and automate repetitive processes according to SRE precepts.

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About the Author

Joshua Wood is a Principal OpenShift Developer Advocate at Red Hat. Co-author of Kubernetes Operators (O’Reilly, 2020), he was formerly responsible for documentation at CoreOS. Wood has worked in roles from sysadmin to CTO to build utility computing with open source software. He likes fast cars, slow boats, and writing short autobiographies.

Brian Tannous is a Principal Developer Advocate at Red Hat. He has held development, marketing, and advocacy roles in both mobile and open source technology. He is a technology nerd who likes aviation, sustainability, and writing minimal bios.

Product details

  • Publisher ‏ : ‎ O'Reilly Media; 2nd edition (September 28, 2021)
  • Language ‏ : ‎ English
  • Paperback ‏ : ‎ 148 pages
  • ISBN-10 ‏ : ‎ 109810336X
  • ISBN-13 ‏ : ‎ 978-1098103361
  • Item Weight ‏ : ‎ 8.6 ounces
  • Dimensions ‏ : ‎ 7 x 0.5 x 9 inches
  • Customer Reviews:
    5.0 out of 5 stars 2 ratings

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Reviewed in the United States on October 6, 2021
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