Create lambda layer to send profiling data from a lambda function to a pyroscope server

[petethepig]

AWS Lambda has this concept of layers. We should create a pyroscope layer that would allow people to relay data from lambdas to pyroscope.

I created a repo here

Rough plan

I haven't spent too much time researching lambda layers, but it seems to me that we could do something like:

• [ ] create a layer
• [ ] make it start an http server
• [ ] the server would basically be a relay that would listen for requests and proxy them to an actual pyroscope server
• [ ] we could have configuration work via environment variables

Reference Materials

• docs on layers
• honeycomb lambda extension — this is a good example of a layer implementation.
• otel lambda layer — this app is much larger but still is an interesting example of what is possible with these layers

[lizthegrey]

oooh I am very keenly interested in this. however, discovering all currently running lambdas likely won't work; you'll want to push, not pull.

[eh-am]

Implemented here https://github.com/pyroscope-io/pyroscope-lambda-extension