docusaurus/lib/webpack/server.js

const path = require('path');
const staticSiteGenerator = require('static-site-generator-webpack-plugin');
const webpackNiceLog = require('webpack-nicelog');
const createBaseConfig = require('./base');

module.exports = function createProdConfig(props) {
  const config = createBaseConfig(props, true);

  config.entry('main').add(path.resolve(__dirname, '../core/serverEntry.js'));

  config.target('node');

  config.output.filename('server.bundle.js').libraryTarget('commonjs2');

  // Workaround for Webpack 4 Bug (https://github.com/webpack/webpack/issues/6522)
  config.output.globalObject('this');

  const {siteConfig, docsData, pagesData} = props;

  // static site generator webpack plugin
  const paths = [...docsData, ...pagesData].map(data => data.path);
  config.plugin('siteGenerator').use(staticSiteGenerator, [
    {
      entry: 'main',
      locals: {
        baseUrl: siteConfig.baseUrl
      },
      paths
    }
  ]);
  // show compilation progress bar and build time
  config
    .plugin('niceLog')
    .use(webpackNiceLog, [{name: 'Server', color: 'yellow'}]);

  return config;
};