Serverless

Serverless is a cloud execution model where the provider manages server infrastructure and automatically scales based on demand.

What is Serverless?

Serverless computing is a cloud execution model where the cloud provider dynamically manages the allocation and provisioning of servers. Applications scale automatically based on demand, and billing is based on actual resource consumption rather than pre-purchased capacity.

Serverless Types

FaaS (Functions as a Service): AWS Lambda, Azure Functions, Google Cloud Functions
Serverless Containers: AWS Fargate, Cloud Run, Azure Container Instances
Serverless Databases: DynamoDB, Aurora Serverless, Firestore
Serverless Storage: S3, Cloud Storage, Azure Blob Storage

Benefits

No server management, automatic scaling, pay-per-use pricing, reduced operational overhead, and faster time to market.

Common Misconceptions

"Serverless means no servers" - Servers exist, you just don't manage them
"Serverless is always cheaper" - Depends on workload patterns
"Serverless is for everything" - Not suited for long-running processes