Book Image

Hybrid Cloud Infrastructure and Operations Explained

By : Mansura Habiba
Book Image

Hybrid Cloud Infrastructure and Operations Explained

By: Mansura Habiba

Overview of this book

Most organizations are now either moving to the cloud through modernization or building their apps in the cloud. Hybrid cloud is one of the best approaches for cloud migration and the modernization journey for any enterprise. This is why, along with coding skills, developers need to know the big picture of cloud footprint and be aware of the integration models between apps in a hybrid and multi-cloud infrastructure. This book represents an overview of your end-to-end journey to the cloud. To be future agnostic, the journey starts with a hybrid cloud. You'll gain an overall understanding of how to approach migration to the cloud using hybrid cloud technologies from IBM and Red Hat. Next, you’ll be able to explore the challenges, requirements (both functional and non-functional), and the process of app modernization for enterprises by analyzing various use cases. The book then provides you with insights into the different reference solutions for app modernization on the cloud, which will help you to learn how to design and implement patterns and best practices in your job. By the end of this book, you’ll be able to successfully modernize applications and cloud infrastructure in hyperscaler public clouds such as IBM and hybrid clouds using Red Hat technologies as well as develop secure applications for cloud environments.
Table of Contents (16 chapters)
1
Part 1: Moving to Hybrid Cloud
5
Part 2: Cloud-Native Methods, Practices, and Technology
8
Part 3: Elements of Embedded Linux

A reference solution for application modernization

We are using a monolithic application deployed on the Liberty WebSphere Application Server (WAS) for this reference solution. Figure 5.3 depicts the application migration plan for this use case using the Re-Platform and Re-Host patterns. In the legacy platform, applications are not implemented following the extended Twelve-Factor App methodology. Therefore, they are not cloud-ready and cannot be migrated as is. In addition, some frameworks, such as Spring Boot, provide very comprehensive and easy-to-configure features that can expedite the re-factoring of monolithic applications to make them cloud-ready. In this case, only re-host or lift-and-shift can be used, as VM-to-VM is not sufficient for modernization.

Re-Platforming is also necessary to get the most efficient results. For a successful Re-Platform migration, applications should be Re-Architected and re-factored as part of modernization to make them cloud-ready through Re...