option to specify listening port

[laynr]

Desire a way to specify listening port to aws-lambda-rie.

This could be with an ENV in the Dockerfile similar to "DOCKER_LAMBDA_API_PORT" in lambci/docker-lambda#235

Or with an argument to aws-lambda-rie like -p80 or at least by mapping like -p80:8080. so the lambda_entrypoint.sh would look like

#!/bin/sh
if [ -z "${AWS_LAMBDA_RUNTIME_API}" ]; then
  exec /usr/local/bin/aws-lambda-rie -p80 $RUNTIME_ENTRPOINT
else
  exec $RUNTIME_ENTRPOINT
fi 

I am aware of the docker option docker run -p 80:8080 but I am asking for a way to do it in the dockerfile as an ENV or modifying the entrypoint script when calling aws-lambda-rie.

ENV AWS_LAMBDA_RUNTIME_API 127.0.0.1:80 resulted in "Failed to get next"

[regmicmahesh]

+1

[rmzi]

+1

[cibinmathew]

@laynr
Instead of ric, by any chance are you looking for using custom port in local using rie (https://github.com/aws/aws-lambda-runtime-interface-emulator)

[talkopeliovich]

This is acutely relevant when running tests mocking several lambdas & a secrets manager. Secrets manager on host cannot be accessed without jumping through ip table hoops. Getting an option to specify ports would let us use network=host and not worry about lambdas listening on the same port.