Serverless deployment, also known as Function-as-a-Service (FaaS), is a method of deploying and running application code without the need for provisioning or managing servers. Instead of running on a traditional server, the code is executed in response to specific events or triggers, such as an HTTP request, a message in a queue, or a scheduled task.

One popular framework for Serverless deployment is AWS Lambda and it’s Serverless Application Model (SAM) which is a tool that makes it easy to build and deploy serverless applications. SAM is an extension of AWS CloudFormation, which is a service that helps users’ model and provision AWS resources.

To deploy an application using SAM, you create a SAM template that defines the resources that your application needs, such as AWS Lambda functions, Amazon API Gateway, and Amazon DynamoDB tables. You then use the AWS CLI (Command Line Interface) or the AWS Management Console to deploy your application. SAM then creates the necessary resources and configures them for you.

The deployment process typically includes the following steps:

1. Create a SAM template that defines your application’s resources
2. Package and upload your application code and dependencies to an S3 bucket
3. Use SAM to deploy your application to your AWS environment.
4. Test your application and make any necessary adjustments.

Once your application is deployed, you can use the AWS Management Console or the AWS CLI to monitor and manage your application’s resources. With Serverless deployment, you only pay for the resources that you use, and you don’t have to worry about provisioning or managing servers.

In summary, Serverless deployment is a way to deploy and run application code without the need for provisioning or managing servers. It allows you to focus on writing code, rather than managing infrastructure, and it can help you reduce costs and increase scalability.