Deploying Code as Serverless functions

  • App code and dependencies are packaged into .zip files, with a a single entry point function.
  • Example of cloud services that provide this: AWS Lambda, Google Cloud Functions.
  • These services provide instant scaling upto 10,000+ requests per second, load balancing, etc.
  • No worry of servers going down
  • Only pay for compute time.

    • Cons
  • Entire deployment package has to fit within 500 MB, <5 minutes execution time and < 3 GB memory (on AWS Lambda)
  • Only CPU execution. No GPU!!

    • Other Pros
  • Canarying: Easy to have 2 versions of Lambda functions in production.
  • Easy to switch back to the previous version of the function.