nsolid-manager/nsolid/console/bin/demo.js

A manager that sets up and runs N|Solid for you

/**
 * All-in-one start script, starts everything you need to try N|Solid Console.
 *
 * 1. Start service dependencies e.g. etcd, nsolid-proxy
 * 2. Start the collector (starts an HTTP server)
 * 3. Simulate some Applications with real Processes
 *
 */

'use strict'

require('./polyfill')

var spawn = require('child_process').spawn
var split = require('split')
var createDebug = require('debug')
var utils = require('./utils')
var which = require('npm-which')(process.cwd())
var config = require('../src/collect/config')

const argv = config(process.argv, `
Boots everything you need to try N|Solid Console.

Usage: $0 [options]`.trim())

// Override `debug`'s default so buffers become strings
createDebug.coerce = function coerce (val) {
  if (val instanceof Error) return val.stack || val.message
  return val.toString()
}

function debugWrap (proc, logger) {
  proc.stdout
  .pipe(process.stdout)

  proc.stderr
  .pipe(split())
  .on('data', logger)

  utils.killOnExit(proc, {killAll: true})
  return proc
}

process
.on('uncaughtException', onError)
.on('unhandledRejection', onError)

function onError (err) {
  if (err) throw err
}

var consoleEnv = Object.assign({}, process.env)

if (argv['include-nsolid-console']) {
  Object.assign(consoleEnv, {
    NSOLID_APPNAME: 'N|Solid',
    NSOLID_SOCKET: ':0',
    NSOLID_HUB: '127.0.0.1:4001',
    NSOLID_TAGS: 'DC'
  })
}

debugWrap(spawn('etcd', ['--cors=*'], {}), createDebug('etcd'))

var pathToProxy = which.sync('nsolid-proxy')

debugWrap(spawn(pathToProxy, {
  cwd: process.cwd(),
  env: consoleEnv
}), createDebug('nsolid-proxy'))

debugWrap(spawn('node', [
  'bin/nsolid-console.js',
  '--port', argv.port,
  '--interval', 1000
].concat(process.argv.slice(2)), {
  env: Object.assign({}, process.env, consoleEnv, {
    NODE_ENV: process.env.NODE_ENV || 'development'
  })
}), createDebug('nsolid-console'))

debugWrap(spawn('nsolid', [
  'bin/simulate.js',
  'test/simulator/scenarios/noop.js@15'
], {
  env: Object.assign({
    NSOLID_APPNAME: 'Shark Attack',
    NSOLID_TAGS: 'DC, us-east-1, Grey Shark'
  }, process.env)
}), createDebug('scenario:SharkAttack'))

debugWrap(spawn('nsolid', [
  'bin/simulate.js',
  'test/simulator/scenarios/noop.js@5'
], {
  env: Object.assign({
    NSOLID_APPNAME: 'Shark Attack',
    NSOLID_TAGS: 'us-west-1, White Shark'
  }, process.env)
}), createDebug('scenario:SharkAttack'))

debugWrap(spawn('nsolid', [
  'bin/simulate.js',
  'test/simulator/scenarios/leaky-http.js@10'
], {
  env: Object.assign({
    NSOLID_APPNAME: 'Beeeeeeeees',
    NSOLID_TAGS: 'us-east-1, Big Bees'
  }, process.env)
}), createDebug('scenario:Beeeeeeeees'))