Book Image

Hybrid Cloud for Architects

By : Alok Shrivastwa
Book Image

Hybrid Cloud for Architects

By: Alok Shrivastwa

Overview of this book

Hybrid cloud is currently the buzz word in the cloud world. Organizations are planning to adopt hybrid cloud strategy due to its advantages such as untested workloads, cloud-bursting, cloud service brokering and so on. This book will help you understand the dynamics, design principles, and deployment strategies of a Hybrid Cloud. You will start by understanding the concepts of hybrid cloud and the problems it solves as compared to a stand-alone public and private cloud. You will be delving into the different architecture and design of hybrid cloud. The book will then cover advanced concepts such as building a deployment pipeline, containerization strategy, and data storage mechanism. Next up, you will be able to deploy an external CMP to run a Hybrid cloud and integrate it with your OpenStack and AWS environments. You will also understand the strategy for designing a Hybrid Cloud using containerization and work with pre-built solutions like vCloud Air, VMware for AWS, and Azure Stack. Finally, the book will cover security and monitoring related best practices that will help you secure your cloud infrastructure. By the end of the book, you will be in a position to build a hybrid cloud strategy for your organization.
Table of Contents (19 chapters)
Title Page
Copyright and Credits
Software Hardware List
Packt Upsell
Contributors
Preface
Index

Decoupling the tiers


We know that the application architecture plays a key role to ensure its candidature for Hybrid Cloud and it should be conducive for the use in some of the use cases.

The first thing that we need to do is to decouple the tiers of the applications if it needs to be considered for distributed or the co-existant use cases mentioned in the afore section. Lets take a look at how is it done:

The two major methods used in decoupling the different tiers are:

  • Load balancers 
  • Queues (AMQP - Asynchronous Message Queuing Protocol)/ESB (Enterprise Service Bus) - (in older applications)

Load balancers are normally used when there is a direct call being made to the tier, this could be the user making a call to the web tier or even the web tier making API calls to the application tier. 

An AMQP is normally used when there is a task at hand, and there might be several workers who can pick the task up and do it. 

So, in order to understand this better, the use of a load balancer is more of a...