Added Dockerfile

Dockerfile

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+FROM node:9
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install app dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+# where available (npm@5+)
+COPY package*.json ./
+
+RUN npm install --only=production
+
+# Bundle app source
+COPY . .
+
+VOLUME /usr/src/app/data
+RUN npm run reset-db
+
+EXPOSE 3000
+CMD [ "npm", "start" ]