AWS Bites

143. Is App Runner better than Fargate?

9 snips
May 8, 2025
The podcast dives into migrating a web app built with Rust and Solid.js from an on-prem server to the cloud. It compares AWS App Runner with Fargate, showcasing App Runner's simplicity and cost-effectiveness for lighter applications. Listeners learn about the seamless GitHub integration for automation and the complexities of autoscaling. The discussion highlights when App Runner excels and when Fargate is the better choice, offering practical insights for developers seeking a smoother deployment experience.
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ANECDOTE

Real Migration Use Case

  • Luciano migrated a monolithic Rust and Solid.js web app originally running on-prem to AWS App Runner.
  • The project served as a safe test bed to experiment with App Runner with minimal risk.
INSIGHT

App Runner Simplifies Container Ops

  • Fargate involves managing many AWS components like VPCs, ALBs, subnets, IAM roles, and ECS clusters.
  • App Runner abstracts and automates this complexity, offering a simpler way to deploy and scale containers.
INSIGHT

App Runner Pricing Model Explained

  • App Runner pricing includes memory allocated even when containers are frozen and CPU usage only when active.
  • The baseline cost for an always-on single container is around $5/month for memory plus additional CPU costs when running requests.
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