Book Image

The Definitive Guide to Modernizing Applications on Google Cloud

By : Steve (Satish) Sangapu, Dheeraj Panyam, Jason Marston
Book Image

The Definitive Guide to Modernizing Applications on Google Cloud

By: Steve (Satish) Sangapu, Dheeraj Panyam, Jason Marston

Overview of this book

Legacy applications, which comprise 75–80% of all enterprise applications, often end up being stuck in data centers. Modernizing these applications to make them cloud-native enables them to scale in a cloud environment without taking months or years to start seeing the benefits. This book will help software developers and solutions architects to modernize their applications on Google Cloud and transform them into cloud-native applications. This book helps you to build on your existing knowledge of enterprise application development and takes you on a journey through the six Rs: rehosting, replatforming, rearchitecting, repurchasing, retiring, and retaining. You'll learn how to modernize a legacy enterprise application on Google Cloud and build on existing assets and skills effectively. Taking an iterative and incremental approach to modernization, the book introduces the main services in Google Cloud in an easy-to-understand way that can be applied immediately to an application. By the end of this Google Cloud book, you'll have learned how to modernize a legacy enterprise application by exploring various interim architectures and tooling to develop a cloud-native microservices-based application.
Table of Contents (26 chapters)
1
Section 1: Cloud-Native Application Development and App Modernization in Google Cloud
5
Section 2: Selecting the Right Google Cloud Services
10
Section 3: Rehosting and Replatforming the Application
17
Section 4: Refactoring the Application on Cloud-Native/PaaS and Serverless in Google Cloud

Using Cloud Memorystore

As we learned in the Designing for scalability and availability section, Cloud Memorystore is fully managed, highly available, and scalable Redis as a Service. We will be using this to handle user sessions for our application. To use Cloud Memorystore with our application, we will need to perform two activities. The first activity is to provision an instance of Cloud Memorystore, the second activity is to update our Regional Managed Instance Group to use this instance.

Provisioning a Cloud Memorystore instance

We will now provision our Cloud Memorystore instance by performing the following steps:

  1. From the navigation menu, select Memorystore:

    Figure 11.3 – Navigation menu: Memorystore

  2. Click CREATE INSTANCE:

    Figure 11.4 – CREATE INSTANCE

  3. On the Create a Redis instance page, provide an Instance ID and Display name:

    Figure 11.5 – Instance ID and Display name

  4. Select the Tier and Region. As this is not a production system...