The news, tech exhibitions, and industry conferences have been all over serverless computing lately. Despite being a notion that has been around since 2006, “serverless” is still a relatively new term. Many individuals appear to think that the serverless computing model is the logical next step in the development of computing. In this piece, we’ll examine some fundamental ideas behind serverless computing, an event-driven fully managed computing service.
What Exactly Is Serverless?
In the serverless application delivery paradigm, cloud providers automatically intercept user requests and computing events to dynamically distribute and scale compute resources, enabling you to execute applications without having to install, configure, manage, or maintain server infrastructure.
Hostless (apps aren’t housed on a server), stateless (interactions and data aren’t kept), elastic (resources may be scaled up and down without restrictions), distributed (many services are connected for seamless operation), and event-driven applications are all made possible by serverless technology.
Serverless adoption is rising at the same time as cloud adoption. Serverless computing and serverless consulting, in many ways, realize the full promise of cloud computing, allowing for real-time resource allocation, scaling up or down, and resource-based billing. It ensures that when there are no user requests, and the program is effectively dormant, resources are scaled down to zero automatically. As a result, there are significant cost reductions and increased scalability.
Applications of Serverless
Serverless architecture is ideal for use cases including microservices, mobile backends, and data and event stream processing due to the distinctive combination of qualities and advantages it offers.
Serverless and Microservices
Today, serverless technology is most frequently used to enable microservice architectures. Small services that perform a specific task and interact with one another via APIs are the main goal of the microservices architecture: https://itoutposts.com/. Although PaaS or containers may also be used to create and manage microservices, serverless has gained popularity because of its advantages over these technologies, including tiny amounts of code, inherent automated scalability, quick deployment, and no-charge idle capacity.
In a serverless platform, each operation (or function) may be converted into an HTTP endpoint that is prepared for consumption by web clients. These are referred to as web activities when they are set up for the web. Once you have web actions, you can combine them with an API gateway, adding more security, OAuth support, rate restriction, and custom domain support to create a fully functional API.
Serverless is well suited for tasks like data enrichment, transformation, validation, and cleansing; processing PDFs; normalizing audio; rotating images (sharpening, reducing noise, creating thumbnails); optical character recognition (OCR); and transcoding videos. These tasks can all be performed on structured text, audio, image, and video data. Throughout the projected period, the serverless computing market is anticipated to grow at a high CAGR of around 23.17%.
How Do Alternative Cloud Backend Approaches Compare to Serverless?
The terms “serverless computing” are frequently used interchangeably with “backend as a service” and “platform as a service.”
- A cloud provider provides backend services like data storage as part of the backend-as-a-service (BaaS) business model so that developers may concentrate on building front-end code. BaaS apps might not adhere to either of these standards, whereas serverless applications are event-driven and run on the edge.
- Operating systems and middleware are only examples of the platform-as-a-service (PaaS) concept, which lets developers rent all the tools they need from a cloud provider to create and deploy applications. The scalability of PaaS apps is less straightforward than that of serverless applications.
- Cloud suppliers who host infrastructure on behalf of their clients are collectively referred to as “infrastructure as a service” (IaaS). However, serverless and IaaS are not the same thing. IaaS providers may offer the serverless capability.
A cloud-native development methodology called serverless enables developers to create and execute apps without worrying about managing servers.
Servers still exist in serverless architecture but are not involved in creating apps. A cloud provider takes care of establishing, maintaining, and expanding the server infrastructure. Developers merely need to bundle their code in containers for deployment.