Running single Queue & Scheduler on boot of the web sever.

kernel.js

...

if (process.env.exec_mode === 'cluster_mode') {
  if (Number(process.env.NODE_APP_INSTANCE) === 0) {
    runKue()
    runScheduler()
  }
} else {
  runKue()
  runScheduler()
}

function runKue() {
  const Kue = use('Adonis/Addons/Kue')
  Kue.listen()
}

function runScheduler() {
  const Scheduler = use('Adonis/Addons/Scheduler')
  Scheduler.run()
}