Add Dockerfile

Dockerfile

+FROM node:16-alpine
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+
+# copy project files and folders to the current working directory (i.e. 'app' folder)
+COPY . .
+
+# build app for production with minification
+# RUN npm run build
+
+RUN npm run lint
+EXPOSE 8080
+CMD [ "npm", "run", "serve" ]
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