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You're reading from  Mastering Kubernetes, - Third Edition

Product typeBook
Published inJun 2020
PublisherPackt
ISBN-139781839211256
Edition3rd Edition
Tools
Kubernetes
Concepts
Containerization
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Author (1)
Gigi Sayfan
Gigi Sayfan
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Gigi Sayfan

Gigi Sayfan has been developing software for 25+ years in domains as diverse as instant messaging, morphing, chip fabrication process control, embedded multimedia applications for game consoles, brain-inspired ML, custom browser development, web services for 3D distributed game platforms, IoT sensors, virtual reality, and genomics. He has written production code in languages such as Go, Python, C, C++, C#, Java, Delphi, JavaScript, and even Cobol and PowerBuilder for operating systems such as Windows (3.11 through 7), Linux, macOS, Lynx (embedded), and Sony PlayStation. His technical expertise includes databases, low-level networking, distributed systems, containers, unorthodox user interfaces, modern web applications, and general SDLC.
Read more about Gigi Sayfan

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Kubernetes runtimes

Kubernetes originally only supported Docker as a container runtime engine. But that is no longer the case. Kubernetes now supports several different runtimes:

  • Docker (via a CRI shim)
  • rkt (direct integration to be replaced with Rktlet)
  • CRI-O
  • Frakti (Kubernetes on the Hypervisor, previously Hypernetes)
  • rktlet (CRI implementation for rkt)
  • CRI-containerd

The major design policy is that Kubernetes itself should be completely decoupled from specific runtimes. The Container Runtime Interface (CRI) enables it.

In this section, you'll get a closer look at the CRI and get to know the individual runtime engines. At the end of this section, you'll be able to make a well-informed decision about which runtime engine is appropriate for your use case and under what circumstances you may switch or even combine multiple runtimes in the same system.

The container runtime interface (CRI)

The CRI is a collection...

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Mastering Kubernetes, - Third Edition
Published in: Jun 2020Publisher: PacktISBN-13: 9781839211256
© 2020 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Gigi Sayfan

Gigi Sayfan has been developing software for 25+ years in domains as diverse as instant messaging, morphing, chip fabrication process control, embedded multimedia applications for game consoles, brain-inspired ML, custom browser development, web services for 3D distributed game platforms, IoT sensors, virtual reality, and genomics. He has written production code in languages such as Go, Python, C, C++, C#, Java, Delphi, JavaScript, and even Cobol and PowerBuilder for operating systems such as Windows (3.11 through 7), Linux, macOS, Lynx (embedded), and Sony PlayStation. His technical expertise includes databases, low-level networking, distributed systems, containers, unorthodox user interfaces, modern web applications, and general SDLC.
Read more about Gigi Sayfan

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