Re-architecting as microservices without containers - AWS Prescriptive Guidance

Re-architecting as microservices without containers

AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers, creating workload-aware cluster scaling logic, maintaining event integrations, or managing runtimes. Lambda runs your function only when needed and scales automatically, from a few requests per day to thousands per second. You pay only for the compute time that you consume—there is no charge when your code isn’t running. In this approach, a monolithic application is broken down into smaller services, where each service serves a single purpose. If the service isn’t constantly running, it can be implemented as a Lambda function; otherwise, the service should run in a container.

Use cases

You can use this migration strategy in the following scenarios:

  • You want to break your monolithic system into microservices.

  • You have the resources and time available for refactoring.

  • You can resolve all .NET Framework dependencies.

  • Your applications do not run constantly; they run for a very short period of time.


This migration approach provides the following benefits, when compared with on-premises .NET applications:

  • Faster innovation because it’s easier to add new features in a microservices architecture

  • High availability and reliability

  • Increased agility and on-demand scalability

  • Independent deployment and modern CI/CD pipelines

  • Strong module boundaries and technical diversity

  • Cost savings

  • Reduced infrastructure provisioning efforts


  • Effort and cost of refactoring

  • Operational complexity

  • No support for long-running applications

AWS services

These are some of the important AWS services that you can use to develop a microservices architecture with AWS Lambda:


AWS Professional Services offers custom tools and services to help you refactor your monolithic applications into microservices.

Deployment decisions

This migration and modernization approach is supported by AWS Lambda

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