add Dockerfile

Author: beardicus

Dockerfile

@@ -0,0 +1,17 @@
+# use the latest node LTS release
+FROM node:carbon
+WORKDIR /usr/src/app
+
+# copy package.json and package-lock.json and install packages. we do this
+# separate from the application code to better use docker's caching
+# `npm install` will be cached on future builds if only the app code changed
+COPY package*.json ./
+RUN npm install
+
+# copy the app
+COPY . .
+
+# expose port 3000 and start the app
+EXPOSE 3000
+CMD [ "npm", "start" ]
+