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Docker and Kubernetes for Java Developers by Jaroslaw Krochmalski

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Basic Kubernetes concepts

A cluster is a group of nodes; they can be physical servers or virtual machines that have the Kubernetes platform installed. The basic Kubernetes architecture is presented in the following diagram:

As you can see, the Kubernetes cluster consists of a Master node and a number of worker nodes with some components inside. While it may look scary and complicated at first glance, it will be easier to understand if we describe the concepts one by one, starting with the Pod.

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