Serverless computing is a model of cloud computing where the cloud provider manages the underlying infrastructure and automatically allocates resources as needed to execute code. This means that developers do not have to worry about server management or provisioning, and they can focus solely on writing code.
In a serverless architecture, functions (also known as “serverless functions” or “lambda functions”) are triggered by events, such as HTTP requests or changes to data in a database. When an event is triggered, the cloud provider automatically provisions the necessary compute resources to execute the function, and then deallocates those resources once the function has completed.
AWS offers a number of serverless computing services, including AWS Lambda, AWS Fargate, and AWS App Runner. AWS Lambda is a serverless computing service that lets you run code without provisioning or managing servers. AWS Fargate is a serverless compute engine that lets you run containers without having to manage the underlying infrastructure. AWS App Runner is a fully managed service that makes it easy to build, deploy, and scale containerized applications quickly.
Some benefits of serverless computing include reduced operational costs, improved scalability, faster time-to-market, and increased developer productivity. However, there are also some challenges associated with serverless computing, such as cold start latency, limited control over the underlying infrastructure, and potential vendor lock-in.