Makefile

# Variables

# Info about supported regions
# https://developer.amazon.com/docs/custom-skills/host-a-custom-skill-as-an-aws-lambda-function.html
#AWS_REGION ?= "eu-west-1"
#ROLE_ARN ?= "arn:aws:iam::527878234180:role/themoviedb_alexa"
#LAMBDA_NAME ?= "TheMoviedbAlexa"
#ALEXA_SKILL_ID ?= "amzn1.ask.skill.ef144e1e-bf0e-4306-a9f6-c05a7d92d6f0"

AWS_REGION ?= "eu-west-1"
ROLE_ARN ?= ""
LAMBDA_NAME ?= "TheMoviedbAlexa"
ALEXA_SKILL_ID ?= ""

include .secret.env

.PHONY: help
.DEFAULT_GOAL := help

# Targets

release: ## Generates a lambda release
	$(MAKE) deps
	mix build_lambda

package: ## Generates a zip with an AWS lambda bootstrap release
	$(MAKE) release
	mix package

deps: ## Retrieves the project dependencies
	mix deps.get

DOCKER_TAG ?= "docker_themoviebd_alexa"
DEST_FILE ?= "./output"
docker_build: ## Creates a docker build image to be used for making releases
	@echo "Build docker image ${DOCKER_TAG}"
	@docker build --quiet -t ${DOCKER_TAG} .

docker_run: ## Executes a container using the build image
	@echo "Execute build in container"
	@docker run --name ${DOCKER_TAG} ${DOCKER_TAG}

docker_copy: ## Copies the release generated by the build image into the output directory
	@echo "Copy build file to ${DEST_FILE}"
	@docker cp ${DOCKER_TAG}:/output/lambda.zip ${DEST_FILE}
	@docker rm ${DOCKER_TAG}

docker_package: ## Creates the build image, runs the release and copies the generated bootstrap package
	$(MAKE) docker_build
	$(MAKE) docker_run
	$(MAKE) docker_copy

LAMBDA_PATH ?= "${DEST_FILE}/lambda.zip"
create_lambda: ## Creates an AWS lambda
	@echo "Creating lambda"
	@aws lambda create-function \
		--region ${AWS_REGION} \
		--function-name ${LAMBDA_NAME} \
		--handler Elixir.ThemoviedbAlexa:handle \
		--role ${ROLE_ARN} \
		--runtime provided \
		--zip-file fileb://${LAMBDA_PATH}
	@echo "done!"

update_lambda: ## Updates an AWS lambda
	@echo "Update lambda"
	@aws lambda update-function-code \
		--region ${AWS_REGION} \
		--function-name ${LAMBDA_NAME} \
		--zip-file fileb://${LAMBDA_PATH} \
		--publish
	@echo "done!"

add_skill_permission: ## Adds lambda permissions to an Alexa skill
	@echo "Add skill permission"
	@aws lambda add-permission \
	  --region ${AWS_REGION} \
		--function-name ${LAMBDA_NAME} \
		--statement-id 1 \
		--action lambda:InvokeFunction \
		--principal alexa-appkit.amazon.com \
		--event-source-token ${ALEXA_SKILL_ID}
	@echo "done!"

test_lambda: ## Sends a test JSON object to the lambda
	aws lambda invoke \
		--function-name ${LAMBDA_NAME} \
		--region ${AWS_REGION} \
		--log-type Tail \
		--payload '{"msg": "a fake request"}' \
 		outputfile.txt

help: ## Prints this help
	@grep -h -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'