Book Image

The DevOps 2.3 Toolkit

By : Viktor Farcic
Book Image

The DevOps 2.3 Toolkit

By: Viktor Farcic

Overview of this book

Building on The DevOps 2.0 Toolkit, The DevOps 2.1 Toolkit: Docker Swarm, and The DevOps 2.2 Toolkit: Self-Sufficient Docker Clusters, Viktor Farcic brings his latest exploration of the DevOps Toolkit as he takes you on a journey to explore the features of Kubernetes. The DevOps 2.3 Toolkit: Kubernetes is a book in the series that helps you build a full DevOps Toolkit. This book in the series looks at Kubernetes, the tool designed to, among other roles, make it easier in the creation and deployment of highly available and fault-tolerant applications at scale, with zero downtime. Within this book, Viktor will cover a wide range of emerging topics, including what exactly Kubernetes is, how to use both first and third-party add-ons for projects, and how to get the skills to be able to call yourself a “Kubernetes ninja.” Work with Viktor and dive into the creation and exploration of Kubernetes with a series of hands-on guides.
Table of Contents (18 chapters)
The End
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What now?

The good news is that ReplicaSets are relatively straightforward. They provide a guarantee that the specified number of replicas of a Pod will be running in the system as long as there are available resources. That's the primary and, arguably, the only purpose.

The bad news is that ReplicaSets are rarely used independently. You will almost never create a ReplicaSet directly just as you're not going to create Pods. Instead, we tend to create ReplicaSets through Deployments. In other words, we use ReplicaSets to create and control Pods, and Deployments to create ReplicaSets (and a few other things). We'll get to Deployment soon. For now, please delete your local Minikube cluster. The next chapter will start from scratch.

minikube delete  
If you'd like to know more about ReplicaSets, please explore ReplicaSet v1 apps (