Cloud & Networking
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You're reading from  The KCNA Book

Product typeBook
Published inJun 2023
PublisherPackt
ISBN-139781835080399
Edition1st Edition
Tools
Kubernetes
Concepts
Containerization
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Author (1)
Nigel Poulton
Nigel Poulton
author image
Nigel Poulton

Nigel Poulton is a cloud-native subject matter expert who spends his life creating books and training videos on the latest cloud technologies. He is the author of best-selling books on Docker and Kubernetes and the most popular online training videos on the same topic. He is a Docker Captain. Prior to this, Nigel has held various infrastructure roles for large enterprises. When he is not playing with technology, he is dreaming about it. When he is not dreaming about it, he is reading and watching sci-fi. He wishes he lived in the future so he could explore spacetime, the universe, and tons of other mind-blowing stuff. He likes cars, football (soccer), and food. He has a fabulous wife and three children.
Read more about Nigel Poulton

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Primer

Containers are similar to virtual machines – both allow you to run multiple applications on a single physical server. However, there are important differences.

At a high level, containers are more lightweight than virtual machines. This means the same server can run more containers than virtual machines. As they’re both technologies for running applications, containers let you run more applications on your servers. For example, a server that can run 10 virtual machines might be able to run 50 containers. This enables huge cost savings for organisations – you need less infrastructure to run your apps. Being lightweight also means containers start faster than virtual machines and are easier to package and share.

Container workflow

The following list shows the common steps involved in creating and running an application as a container.

  1. A developer writes an application
  2. The application is packaged as a container image
  3. The container image is uploaded...
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The KCNA Book
Published in: Jun 2023Publisher: PacktISBN-13: 9781835080399
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Nigel Poulton

Nigel Poulton is a cloud-native subject matter expert who spends his life creating books and training videos on the latest cloud technologies. He is the author of best-selling books on Docker and Kubernetes and the most popular online training videos on the same topic. He is a Docker Captain. Prior to this, Nigel has held various infrastructure roles for large enterprises. When he is not playing with technology, he is dreaming about it. When he is not dreaming about it, he is reading and watching sci-fi. He wishes he lived in the future so he could explore spacetime, the universe, and tons of other mind-blowing stuff. He likes cars, football (soccer), and food. He has a fabulous wife and three children.
Read more about Nigel Poulton

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