Defining a cloud migration strategy for legacy systems

As the cloud becomes ever more popular, more organizations are looking to migrate into the cloud for their legacy application modernization needs. You learned about various cloud migration techniques in Chapter 5, Cloud Migration and Hybrid Cloud Architecture Design. The cloud provides you with the flexibility to scale your application while keeping costs low and helps you to achieve desirable performance, high availability, and reliability while maintaining application security.

Cloud providers such as AWS, Microsoft Azure, and GCP provide many options out of the box that can help you to modernize your system. For example, you can take a serverless approach to build a microservice using AWS Lambda and Amazon API Gateway, with Amazon DynamoDB as the backend. We discussed various legacy system modernization techniques and their application in the context of moving to the cloud in the previous section. The flow illustrated in...