Serverless

Serverless is a cloud computing execution model where AWS manages the infrastructure so you can focus solely on your code. In AWS, serverless primarily refers to AWS Lambda, which lets you run code in response to events without provisioning or managing servers. Key characteristics of serverless in AWS include: 1. No server management: AWS handles all physical servers, infrastructure scaling, patching, and maintenance. 2. Automatic scaling: Resources scale automatically based on workload demands. 3. Pay-per-use pricing: You only pay for the compute time consumed, not for idle capacity. 4. Built-in availability and fault tolerance: AWS ensures high availability across multiple Availability Zones. AWS serverless services include: - AWS Lambda: Run code in response to triggers, with zero administration of infrastructure - Amazon API Gateway: Create, publish and manage APIs at scale - Amazon DynamoDB: Fully managed NoSQL database service - AWS Step Functions: Coordinate multiple AWS services into serverless workflows - Amazon S3: Object storage with event triggers for Lambda - Amazon SNS/SQS: Messaging and queuing services that can trigger Lambda functions - AWS AppSync: Managed GraphQL service Benefits for businesses: 1. Reduced operational costs: No infrastructure management means lower operational overhead 2. Faster time to market: Developers can focus on code rather than infrastructure 3. Scalability: Automatic scaling handles varying workloads efficiently 4. Innovation acceleration: Lower barriers to experimentation Limitations include potential cold starts, maximum execution duration limits, and vendor-specific implementations. Serverless is ideal for event-driven applications, microservices, backend APIs, data processing, and intermittent workloads.

Serverless is a cloud computing execution model where AWS manages the infrastructure so you can focus solely on your code. In AWS, serverless primarily refers to AWS Lambda, which lets you run code i…

Concepts covered: AWS Fargate, AWS Lambda