Prompt
I'm building a lightweight microservice and don't want to manage EC2; what platform makes sense?
Latest observation
If you want to avoid managing EC2 for a lightweight microservice, the usual best fit is serverless or a managed container platform.
Good options
-
AWS Lambda
Best if your service is event-driven, HTTP-based, or runs short requests.
Pros: no servers, scales automatically, pay per use
Cons: cold starts, runtime limits, not ideal for long-lived processes -
AWS App Runner
Good if you already have a containerized microservice and want the simplest “deploy a container and go” experience.
Pros: very low ops, automatic scaling, supports containers
Cons: less control than ECS/EKS, fewer advanced networking knobs -
AWS Fargate (with ECS)
Good if you want containers without managing EC2 instances.
Pros: no server management, more flexible than Lambda, works well for APIs/services
Cons: more setup than App Runner/Lambda
Quick recommendation
- Small HTTP API or event handler: Lambda
- Containerized microservice and want simplicity: App Runner
- Containerized microservice needing more control: ECS on Fargate
If you tell me:
- whether it’s HTTP API vs background job,
- whether it’s containerized, and
- expected traffic,
I can recommend the best one more precisely.