In this chapter, we reviewed some of the strategies you can follow for achieving high availability in your cloud application. We emphasized the importance of both designing your application architecture for availability and using the AWS infrastructural services to get the best results. We followed this up with a section on setting up high availability in our sample application.

In the next chapter, we will shift our focus to strategies for designing and implementing security for your cloud application. We will review some approaches for application security using the AWS services. We will also include a hands-on section that will walk you through the process of implementing security in our sample application.