arifsetiawan

Introduction to Kafka

Kafka acts as a kind of write-ahead log (WAL) that records messages to a persistent store (disk) and allows subscribers to read and apply these changes to their own stores in a system appropriate time-frame.

Terminology:

• Producers send messages to brokers
• Consumers read messages from brokers
• Messages are sent to a topic

arifsetiawan

/*
 * Selenium WebDriver JavaScript test with Mocha and NodeJS
 * 
 * Start with: SELENIUM=PATH_TO_SELENIUM_JAR/selenium-server-standalone-2.31.0.jar mocha -t 10000 -R list google-sample.js
 * 
 * Download selenium-server-standalone-2.31.0.jar from https://selenium.googlecode.com/files/selenium-server-standalone-2.31.0.jar
 * 'sudo su' and 'npm install -g colors mocha selenium-webdriver'
 * 
 * http://visionmedia.github.io/mocha/
 * https://code.google.com/p/selenium/wiki/WebDriverJs

arifsetiawan

Setting up a SSL Cert from Comodo

I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.

These are the steps I went through to set up an SSL cert.

Purchase the cert

arifsetiawan

---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my 
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description: 
#   Ensures that a host is configured for management with Ansible.

arifsetiawan

<?xml version="1.0"?>
<settings>
	<console change_refresh="10" refresh="100" rows="32" columns="120" buffer_rows="9999" buffer_columns="0" shell="" init_dir="E:\ArifSetiawan" start_hidden="0" save_size="0">
		<colors>
			<color id="0" r="0" g="0" b="0"/>
			<color id="1" r="0" g="0" b="128"/>
			<color id="2" r="0" g="150" b="0"/>
			<color id="3" r="0" g="150" b="150"/>
			<color id="4" r="170" g="25" b="25"/>
			<color id="5" r="128" g="0" b="128"/>

arifsetiawan

	// execute("GET","url","Body")
	private class ApiClient extends AsyncTask<String, Void, String> {

		// This runs in other thread
		@Override
		protected String doInBackground(String... params) {

			String method = params[0];
			String url = params[1];
			String body = params[2];

arifsetiawan

Deploy Node.js app

SSH to VM

$ ssh [email protected] -i MyAzure.key

Create setup script

arifsetiawan

Working with Azure CLI

1. Install Node.js

Go to http://nodejs.org/ and choose your installer

2. Install azure cli

Project page Documentation

arifsetiawan

var B = require("bluebird/js/main/promise")();
var Bproto = B.prototype;

var deferredPrototype = B.pending().constructor.prototype;

deferredPrototype.makeNodeResolver = function() {
        return this.asCallback;
};

function bind(fn, ctx) {

arifsetiawan

<?php

//
// Here, we define route and its auth requirements
function getAcl() {

  $acls = array(
      "/secret"    => array("member"),
      "/moresecret" => array("member","subscribe")
  );