Understanding the deployment options for serverless functions

Using a virtual machine or another runtime resource on public clouds for sporadically accessed applications might not be a commercially attractive solution. In such situations, serverless functions come to the rescue. Here, a cloud provider offers dynamically managed resources for your application and only charges you when your application is executed in response to a certain event. In other words, a serverless function is a backend computing method that is an on-demand and a pay-as-you-use service that is only offered on public clouds. We will introduce a few options for deploying serverless functions in the public clouds, as follows:

• AWS Lambda: This is considered to be one of the first service offerings from any of the public cloud providers. AWS Lambda functions can be written in Python, Node.js, Java, PowerShell, Ruby, Java, C#, and Go. AWS Lambda functions can be executed in response to events, such as file...