Krittanon Wisedchart krittanon-w

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

RPC vs REST

Here's a brief analysis of RPC vs. REST based on one person's opinion.

RPC
REST (URL-based)
- Contracts

What this?

So one of the painful points of using docker on OS X is that you need to run a virtualbox VM, which often suffers from performance issues. With xhyve, a OS X virtualization system, and docker-machine-xhyve you can now have docker use the native OS X hypervisor to run containers.

No more dealing with virtualbox shenanigans!

In this script, I've also set up a way to autoconfigure terminal sessions to load docker's environment vars (dependent on docker-machine) so you do not have to run eval $(docker-machine env whatever) every time you open a new terminal window.

Requirements

We are building a Node.js service which will need asynchronous support for tasks like sending emails. Here's our evaluation:

kue
- https://github.com/Automattic/kue
- Good: Seems well documented
- Good: Supports retries and backoff
- Good: Uses Redis so 1 less thing to maintain
- Bad: Only supports Redis so have to wary of key eviction at later stages of growth
- Bad: Slow to resolve issues
http://isitmaintained.com/project/Automattic/kue

Please see the original article for a full explanation. Please feel free to comment, question and criticize there as well!

Prerequisites

Requires https://www.npmjs.com/package/simple-free-encryption-tool

Notes

compiled from multiple sources and much trial and error, feel free to use and pass on
this is not exhaustive, it's meant only as a guide


	FILE SPACING:

	# double space a file
	sed G

	# double space a file which already has blank lines in it. Output file
	# should contain no more than one blank line between lines of text.
	sed '/^$/d;G'

	trait Base {
	def greeting: String
	def from: String
	def greetingAgain: String = greeting + " Again"
	}

	trait Core extends Base {
	override def greeting = "Hello"
	override def from = "Patrick"
	}

	-- Inspired by Linux alt-drag or Better Touch Tools move/resize functionality

	function get_window_under_mouse()
	-- Invoke `hs.application` because `hs.window.orderedWindows()` doesn't do it
	-- and breaks itself
	local _ = hs.application

	local my_pos = hs.geometry.new(hs.mouse.getAbsolutePosition())
	local my_screen = hs.mouse.getCurrentScreen()

	var amqp = require('amqplib')

	var open = require('amqplib').connect('amqp://localhost');

	const connect = (url = 'amqp://localhost') => {
	return new Promise((resolve, reject) => {
	amqp.connect(url)
	.then(conn => resolve(conn))
	.catch(err => reject(err))
	})