Add preliminary Dockerfile.

Author: mpawlik

Dockerfile

@@ -0,0 +1,17 @@
+
+FROM node:8.4.0
+
+WORKDIR /usr/src/app
+
+COPY package.json .
+
+RUN npm install
+
+COPY . .
+
+ENV PORT=80
+ENV REDIS_HOST=redis
+
+EXPOSE ${PORT}
+
+CMD [ "npm", "start" ]