How to deploy Angular project using Docker

const express = require('express');

const app = express();
const config = {
  root: __dirname + '/dist',
  port: process.env.PORT || 4200
};

//Static resources app.use('/', express.static(config.root));

//All routes go to index.html
app.all('*', function (req, res) {
  res.sendfile(config.root + '/index.html');
});
app.listen(config.port, () => {
  console.log("running……");
})

FROM node:13.3.0-alpine3.10

ENV PORT=4200 \
  NODE_ENV=production

# Install express and angular/cli
RUN npm install [email protected] -g \
  && npm install -g @angular/cli
# Create the app directory RUN mkdir -p /app
# Copy the code to the App directory COPY ./app
WORKDIR /app

# Install dependencies and build the program. Since I need to reverse proxy to a subdirectory, I add the base-href parameter RUN npm install && ng build --base-href /manage/ --prod

EXPOSE ${PORT}

ENTRYPOINT ["node", "/app/server.js"]