Docker -> add docker files

.dockerignore

@@ -0,0 +1 @@
+node_modules/

Dockerfile

@@ -0,0 +1,20 @@
+# pull official base image
+FROM node:13.12.0-alpine
+
+# set working directory
+WORKDIR /app
+
+# install app dependencies
+
+COPY package.json ./
+COPY package-lock.json ./
+
+RUN npm install --silent
+
+# add app
+COPY . ./
+
+CMD ["npm", "build"]
+
+# start app
+CMD ["npm", "start"]