jthomas

OpenWhisk Workshop

Hello 👋.

This workshop will teach you how to develop serverless applications, composed of loosely coupled microservice-like functions, using an open-source serverless platform.

Starting with getting the development environment set up, it'll move onto creating, deploying and invoking serverless functions for multiple runtimes. Once you are comfortable creating serverless functions, the next step is to connect functions to events, like message queues, allowing microservices to fire automatically. Finally, we'll demonstrate how to expose serverless functions as public API endpoints, allowing to build serverless web applications.

Welcome to the future of cloud development, you'll never want to manage another server again 😎.

jthomas

$ docker run -p 5601:5601 -p 9200:9200 -p 5000:5000 -it --name old_elk sebp/elk:es241_l240_k461

jthomas

var openwhisk = require('openwhisk');
var request = require('request-promise');

function getNextSunrise(lat, lng, when) {
  const options = {
    uri: 'https://api.sunrise-sunset.org/json',
    qs: { lat: lat, lng: lng, when: when },
    json: true
  }

jthomas

const openwhisk = require('openwhisk');

const main = async evt => {
    const count = (evt.count || 0) + 1

    // use client library to retrieve current function configuration
    const ow = openwhisk()
    const action = await ow.actions.get('counter')
    
    // update default parameters with new value

jthomas

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jthomas

{
  "name": "tf-js",
  "version": "1.0.0",
  "main": "script.js",
  "license": "MIT",
  "dependencies": {
    "@tensorflow-models/mobilenet": "^0.2.2",
    "@tensorflow/tfjs": "^0.12.3",
    "@tensorflow/tfjs-node": "^0.1.9",
    "jpeg-js": "^0.3.4"

jthomas

const tf = require('@tensorflow/tfjs')
const mobilenet = require('@tensorflow-models/mobilenet');
require('@tensorflow/tfjs-node')

const jpeg = require('jpeg-js');

const NUMBER_OF_CHANNELS = 3
const MODEL_PATH = 'mobilenet/model.json'

let mn_model

jthomas

'use strict';

const { Worker } = require('worker_threads');
const os = require('os')
const threadCount = os.cpus().length

const compute_primes = async (start, range) => {
  return new Promise((resolve, reject) => {
    let primes = []
    console.log(`adding worker (${start} => ${start + range})`)

jthomas

'use strict';

const min = 2

function main(params) {
  const { start, end } = params
  console.log(params)
  const primes = []
  let isPrime = true;
  for (let i = start; i < end; i++) {

jthomas

'use strict';
const { Worker, isMainThread, parentPort, workerData } = require('worker_threads');

const min = 2

function generatePrimes(start, range) {
  const primes = []
  let isPrime = true;
  let end = start + range;
  for (let i = start; i < end; i++) {