CHAPTER 12: SECURITY AND FUNCTION AS A SERVICE
In this chapter, I describe how the security services defined within the SRM, and depicted in Figure 7, may be delivered by consumers implementing a service using a FaaS Cloud.
FaaS is the latest evolution of the Cloud model and it takes abstraction to its ultimate form: the running of individual ephemeral functions. With FaaS, there is no monolithic application constantly running in the background, instead, functions are triggered and executed on demand. In many ways, FaaS is similar to PaaS: consumers must still code the individual functions that make up their service, but the ephemeral nature of functions drives a number of different considerations (explored in this chapter).
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