Rust AWS Lambda Builder and Runner

.dockerignore

target/*

Dockerfile.lambda-builder

FROM lambci/lambda-base:build

ENV RUSTUP_HOME=/usr/local/rustup \
    CARGO_HOME=/usr/local/cargo \
    PATH=/usr/local/cargo/bin:$PATH \
    RUST_VERSION=1.27.2

RUN curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain stable --no-modify-path -y && \
    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
    rustup --version; \
    cargo --version; \
    rustc --version; \
    yum install gcc -y
  

Makefile

BINARY_NAME=lambda-test
RELEASE_FOLDER=target/x86_64-unknown-linux-gnu/release
USERID=$(shell id -u ${USER})
GROUPID=$(shell id -g ${USER})

target/docker-image: Dockerfile.lambda-builder
	docker build -t rust-amazonlinux -f Dockerfile.lambda-builder .
	touch $@

target/cached_data:
	mkdir -p target/cached_data

${RELEASE_FOLDER}/${BINARY_NAME}: target/cached_data src/*.rs
	docker run --rm \
		-v ${PWD}/target/cached_data:/usr/local/cargo/registry \
		-v ${PWD}:/code \
		-w /code \
		-u ${USERID}:${GROUPID} \
		rust-amazonlinux \
		bash -c ' \
			set -e -x; \
			cargo build --target x86_64-unknown-linux-gnu --release; \
			du -h ${RELEASE_FOLDER}/${BINARY_NAME}; \
			strip ${RELEASE_FOLDER}/${BINARY_NAME}; \
			du -h ${RELEASE_FOLDER}/${BINARY_NAME}; \
		'

main.zip: target/docker-image ${RELEASE_FOLDER}/${BINARY_NAME}
	cp ${RELEASE_FOLDER}/${BINARY_NAME} main
	zip -D main.zip main
	du -h main.zip
	rm -rf main

run: target/docker-image ${RELEASE_FOLDER}/${BINARY_NAME}
	docker run --rm \
		-v "${PWD}/${RELEASE_FOLDER}/":/var/task \
		lambci/lambda:go1.x \
		${BINARY_NAME} \
		'{"some": "event"}'

.PHONY=run