As organizations increasingly adopt Cloud Computing , they have begun to realize the importance of adapting to a new hybrid reality. The cloud is no longer far from physically stored data, but now they work together effectively. In other words, IT is beginning to see the need to modernize to meet the new needs of companies.
Due to these changes in corporate infrastructure, hybrid solutions and software are being adopted, which allow people to connect to data stored anywhere, whether locally, in the cloud or in a hosted service operation. One technology that has arrived to help this process is Serverless Computing.
Content
What is Serverless Computing?
What is FaaS?
How does FaaS compare to other models?
Why should IT teams prepare?
What does the company gain from implementing serverless computing?
What is Serverless Computing?
Serverless computing is an approach that enables software to be deployed independently of the infrastructure. This is possible by automating the entire process of creation, deployment, and on-demand services. In this way, the user only registers the functions and resources they need.
The beginnings of Serverless Computing can be traced back to Amazon's announcement of AWS Lambda in 2014, which introduced a new system architecture for applications running in the cloud. In this model, there is no definitive process running on a server and waiting for HTTP requests or API calls, but rather an event mechanism that triggers the execution of a piece of code, usually just a function, on one of the AWS servers.
Serverless computing is known as an event-driven infrastructure, meaning cloud providers only execute code when needed. As such, it is classified as FaaS.
What is FaaS?
FaaS (Function as a Service) is a model in which codes are written independently of the server on which they will run. This allows IT to focus on the application that needs to be built. The cloud provider is responsible for finding the server on which the code should run, scaling it up when necessary canadian ceo email list and shutting it down once execution is complete. The codes are programmed to perform only a specific function. This way, the code is executed only when triggered by an event. In addition, the user is only charged for the resources consumed when the code is executed. This type of functionality is also called Yet Another as a Service (YAaaS), one of many that have emerged since the consolidation of cloud computing.
How does FaaS compare to other models?
Serverless is different from other cloud services, such as IaaS (Infrastructure as a Service) and PaaS (Platform as a Service). In these models, users need to spin up virtual machines and deploy the codebase. This is why Serverless is considered the next step in the cloud, making scalability easier, as well as providing greater agility, speed, and cost reduction for the company.
While PaaS is not designed for on-demand applications, FaaS delivers exactly that. Therefore, the main difference between FaaS and PaaS is scale. In FaaS-based systems, function calls start in milliseconds to allow for individual event handling. Even if PaaS is configured to autoscale, it will not execute on demand. Therefore, the FaaS model is much more efficient when it comes to costs.