adding simple dockerfile

.dockerignore

@@ -0,0 +1 @@
+.git

Dockerfile

@@ -0,0 +1,13 @@
+FROM node:8
+
+WORKDIR /srv
+
+COPY package*.json ./
+
+RUN npm install
+
+COPY . ./
+
+EXPOSE 8080
+
+CMD ["node", "index.js"]