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Azure for Architects

Azure for Architects

By : Modi, Jack Lee, Rithin Skaria
3.5 (4)
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Azure for Architects

Azure for Architects

3.5 (4)
By: Modi, Jack Lee, Rithin Skaria

Overview of this book

Thanks to its support for high availability, scalability, security, performance, and disaster recovery, Azure has been widely adopted to create and deploy different types of application with ease. Updated for the latest developments, this third edition of Azure for Architects helps you get to grips with the core concepts of designing serverless architecture, including containers, Kubernetes deployments, and big data solutions. You'll learn how to architect solutions such as serverless functions, you'll discover deployment patterns for containers and Kubernetes, and you'll explore large-scale big data processing using Spark and Databricks. As you advance, you'll implement DevOps using Azure DevOps, work with intelligent solutions using Azure Cognitive Services, and integrate security, high availability, and scalability into each solution. Finally, you'll delve into Azure security concepts such as OAuth, OpenConnect, and managed identities. By the end of this book, you'll have gained the confidence to design intelligent Azure solutions based on containers and serverless functions.
Table of Contents (21 chapters)
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20
Index

Virtual nodes

One of the limitations of virtual kubelet is that the Pods deployed on virtual kubelet providers are isolated and do not communicate with other Pods in the cluster. If there is a need for the Pods on these providers to talk to other Pods and nodes in the cluster and vice versa, then virtual nodes should be created. Virtual nodes are created on a different subnet on the same virtual network that is hosting Kubernetes cluster nodes, which can enable communication between Pods. Only the Linux operating system is supported, at the time of writing, for working with virtual nodes.

Virtual nodes give a perception of a node; however, the node does not exist. Anything scheduled on such a node actually gets created in Azure Container Instances. Virtual nodes are based on virtual kubelet but have the extra functionality of seamless to-and-fro communication between the cluster and Azure Container Instances.

While deploying Pods on virtual nodes, the Pod definition should contain...

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