build: Improve the backend Makefile

backend/Makefile

@@ -3,17 +3,28 @@ node_modules:
 
 WEBPACK_BUILD := ./node_modules/.bin/webpack-cli --config webpack.config.js
 
+dist/bundle.js: prod
 .PHONY: prod
 prod:
-	${WEBPACK_BUILD} --env.NODE_ENV=production
+	${WEBPACK_BUILD} --mode production
 
 .PHONY: dev
 dev:
-	${WEBPACK_BUILD} --env.NODE_ENV=development
+	${WEBPACK_BUILD} --mode development
 
 .PHONY: start
 start: dev
 	node dist/bundle.js
 
-dockerfile: dist/bundle.js
-	sudo docker build -t lateinicus/server -f Dockerfile dist/
+VERSION := $(shell cat package.json | jq -r ".version")
+CONTAINER_TAG := "lateinicus/server:${VERSION}"
+container: dist/bundle.js
+	@echo Building the container
+	cp wait-for dist/
+	sudo docker build -t ${CONTAINER_TAG} -f Dockerfile dist/
+	rm -f dist/wait-for
+
+	@echo Exporting the container
+	sudo docker save ${CONTAINER_TAG} > backend.tar
+	tar -czf backend.tgz backend.tar
+	rm -f backend.tar