BUILD.md

Build

This Lumo AWS Lambda runtime relies on a lumo binary to be built and deployed.

Compiling Lumo with Musl

In order to avoid library mismatch AWS suggests to statically compile binaries and this is exactly what we are going to do thanks to Andrea Richiardi's docker-lumo-musl.

First things first, pull down the docker image:

docker pull arichiardi/lumo-musl-ami

Second, clone lumo:

git clone [email protected]:anmonteiro/lumo   # anywhere on your filesystem

Finally, build using the image:

docker run -v /path/to/lumo:/lumo -v $HOME/.m2:/root/.m2 -v $HOME/.boot/cache:/.boot/cache --rm arichiardi/lumo-musl-ami

The /root/.m2 and /.boot/cache mappings are optional but recommended for avoiding downloading dependencies multiple times.

The (long) process will compile the lumo static binary under /path/to/lumo/build.

Building the runtime and publishing it as a Lambda layer

The supplied Makefile in this repo will take care of the details:

make clean # (if necessary)
LUMO_BIN_PATH=/path/to/lumo make # point to lumo binary from the step above
make publish