console - brunch build --production fails with "watch vendor ENOSPC"

[fvanderbiest]

error: watch vendor ENOSPC
  at _errnoException (util.js:1022:11)
  at FSWatcher.start (fs.js:1374:19)
  at Object.fs.watch (fs.js:1400:11)
  at createFsWatchInstance (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:37:15)
  at setFsWatchListener (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:74:15)
  at FSWatcher.NodeFsHandler._watchWithNodeFs (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:228:14)
  at FSWatcher.NodeFsHandler._handleDir (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:407:19)
  at FSWatcher.<anonymous> (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:455:19)
  at FSWatcher.<anonymous> (/home/c2c/workspace/georchestra/console/src/main/webapp/console/node_modules/chokidar/lib/nodefs-handler.js:460:16)
  at FSReqWrap.oncomplete (fs.js:153:5)

workaround found on jestjs/jest#3254 (comment):

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p