In this chapter, we reviewed some of the strategies you can follow for achieving scalability for your cloud applications. We emphasized the importance of both designing your application architecture for scalability and using AWS infrastructural services to get the best results. We followed this up with sections on implementing API-driven applications and streaming applications using AWS services. Finally, we implemented auto scaling for our sample application.

In the next chapter, we will shift our focus to strategies for achieving high availability for your cloud-based applications. We will review some application architectural principles and AWS infrastructural features to implement high availability. We will also include a hands-on section that will walk you through the process of implementing high availability in the sample application.