Added docker image

Dockerfile

@@ -0,0 +1,9 @@
+FROM node:10-alpine
+
+WORKDIR /app
+
+ADD package.json .
+RUN npm install
+ADD index.js .
+
+CMD npm start

Makefile

@@ -0,0 +1,18 @@
+.DEFAULT_GOAL := default
+
+IMAGE := docker.cloud.cluster.fun/averagemarcus/cors-proxy:latest
+
+.PHONY: docker-build # Build the docker image
+docker-build:
+	@docker build -t $(IMAGE) .
+
+.PHONY: publish # Publish the docker image to the Artifactory registry
+publish:
+	@docker push $(IMAGE)
+
+.PHONY: help # Show this list of commands
+help:
+	@grep '^.PHONY: .* #' Makefile | sed 's/\.PHONY: \(.*\) # \(.*\)/\1: \2/' | expand -t20
+
+default: docker-build publish
+