Nedumaran Rajagopal neduma

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

A Guide to Rust Syntax

A very brief guide to Rust syntax. It assumes you are already familiar with programming concepts.

This was written in 2014. It is not a good reference for Rust today, though the content is still correct.

cheats.rs looks like a good alternative.

Assert macro

Working with ansible-vault

I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

What you'll need

nginx
nginx-x-rid-header module (https://github.com/newobj/nginx-x-rid-header)

Why?

We want to track image downloads from client side and in javascript we cannot get the header values:(.

Logging

FIRST THINGS FIRST Resist the temptation to buy the first bike you see. Look at a few of them to get a better idea of the used bike market/options before you buy one. Bring a friend to help you stick to your guns, or to help you load your new bikes onto a truck, or as ballast in case the bike has a centerstand and you wish to inspect the front wheel. Bike-savvy friends may also notice things that you forgot to check. Make sure they also read this guide ahead of time. Bring a flashlight to aid inspection. Even in daylight. Request that the owner not have the bike warmed up when you get there, but tell him/her to make sure that the bike will start. If the owner asks why, tell them that you want to test the bike's ability to start when cold. (It's a lot easier for engines to start when pre-warmed.) You needn't follow these instructions in any particular order, or even follow them at all, but if you are going to read them, you should probably do so before you get to the seller's house. If you're new to motorcycli

	#!/bin/bash

	set -e

	if [ $# -eq 0 ]; then
	echo "USAGE: $0 plugin1 plugin2 ..."
	exit 1
	fi

	plugin_dir=/var/lib/jenkins/plugins

	---
	- name: Add Percona apt signing key
	sudo: yes
	apt_key: keyserver=keys.gnupg.net id=1C4CBDCDCD2EFD2A state=present

	- name: Add Percona repository
	sudo: yes
	apt_repository: repo='deb http://repo.percona.com/apt trusty main' state=present

	- name: Add Percona source repository

	# Ask for the user password
	# Script only works if sudo caches the password for a few minutes
	sudo true

	# Install kernel extra's to enable docker aufs support
	# sudo apt-get -y install linux-image-extra-$(uname -r)

	# Add Docker PPA and install latest version
	# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
	# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

	{
	"AWSTemplateFormatVersion": "2010-09-09",
	"Description": "Create and assign an IAM Policy to an existing group to allow users to manage their own credentials and MFA.",
	"Parameters": {
	"Group": {
	"Description": "Assign the IAM policy to an existing group",
	"Type": "String"
	}
	},
	"Resources": {

	interfaces {
	vti vti0 {
	address <CGW_INTERNAL_IP_A>/30
	description "VPC Tunnel A"
	mtu 1436
	}
	vti vti1 {
	address <CGW_INTERNAL_IP_B>/30
	description "VPC Tunnel B"
	mtu 1436