September 2017
Intermediate to advanced
269 pages
4h 38m
English
Content preview from Kubernetes: Up and Running
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Chapter 1. Introduction
Kubernetes is an open source orchestrator for deploying containerized applications. Kubernetes was originally developed by Google, inspired by a decade of experience deploying scalable, reliable systems in containers via application-oriented APIs.1
But Kubernetes is much more than simply exporting technology developed at Google. Kubernetes has grown to be the product of a rich and growing open source community. This means that Kubernetes is a product that is suited not just to the needs of internet-scale companies but to cloud-native developers of all scales, from a cluster of Raspberry Pi computers to a warehouse full of the latest machines. Kubernetes provides the software necessary to successfully build and deploy reliable, scalable distributed systems.
You may be wondering what we mean when we say “reliable, scalable distributed systems.” More and more services are delivered over the network via APIs. These APIs are often delivered by a distributed system, the various pieces that implement the API running on different machines, connected via the network and coordinating their actions via network communication. Because we rely on these APIs increasingly for all aspects of our daily lives (e.g., finding directions to the nearest hospital), these systems must be highly reliable. They cannot fail, even if a part of the system crashes or otherwise fails. Likewise, they must maintain availability even during software rollouts or other maintenance events. ...
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