Joost van der Laan javdl

Kubernetes clusters using preemtible instances

Motivation

People experimenting with kubernetes clusters on the GKE not necessarily have money to keep a full cluster on at all time. GKE clusters can be easily resized, but this still incurs in the full instance cost when the cluster is up.

Google has added preemptible instances that are ideal for many

The perfect Varnish configuration for WordPress, Joomla, Drupal & other (common) CMS based websites

Updated on December 15th, 2021

IMPORTANT: Read this before implementing one of the configuration files below (for either Varnish 3.x or 4.x+).

USE: Replace the contents of the main Varnish configuration file located in /etc/varnish/default.vcl (root server access required - obviously) with the contents of the configuration you'll use (depending on your Varnish version) from the 2 examples provided below.

IMPORTANT: The following setup assumes a 180 sec (3 minute) cache time for cacheable content that does not have the correct cache-control HTTP headers. You can safely increase this to 300 sec (or more) for less busier sites or drop it to 60 sec or even 30 sec for high traffic sites. It obviously depends on your use case.

In this gist I would like to describe an idea for GraphQL subscriptions. It was inspired by conversations about subscriptions in the GraphQL slack channel and different GH issues, like #89 and #411.

Conceptual Model

At the moment GraphQL allows 2 types of queries:

query
mutation

Reference implementation also adds the third type: subscription. It does not have any semantics yet, so here I would like to propose one possible semantics interpretation and the reasoning behind it.

##Philips

###Hue http://www2.meethue.com/en-us/the-range/hue/

Name	Capabilities	Cost	lumen output
A19 Connected Bulb	Color Tunable White	$59.95	600 @ 4000K 510 @ 3000K 360 @ 2000K 550 @ 6500K
BR30 Connected Bulb	Color Tunable White	$59.95	630 @ 4000K 538 @ 3000K 376 @ 2000K 581 @ 6500K
GU10 Connected Bulb	ColorTunable White	$59.95	300 @ 4000K 210 @ 3000K 145 @ 2000K 230 @ 6500K

	#!/bin/bash

	#New Relic API Key see https://docs.newrelic.com/docs/apis/rest-api-v2/requirements/api-key#creating
	NR_API_KEY="INSERT_API_KEY_HERE"

	#Find New Relic App Name, if your top level folder is not the name of your application change the below two lines to simply NR_APP_NAME="MY_APP_NAME".
	NR_APP_NAME=$(git rev-parse --show-toplevel)
	NR_APP_NAME=$(basename "$NR_APP_NAME")

	#Get the current git branch

	// Load fonts async by default
	// Load sync from SW cache when available.
	//
	// Snippet assumes your Service Worker caches fonts as part of installation, so that
	// an 'activated' Service Worker means the fonts are cached with 100% confidence.
	if (
	'serviceWorker' in navigator &&
	navigator.serviceWorker.controller !== null &&
	navigator.serviceWorker.controller.state === 'activated'
	) {

	#!/bin/bash

	# Atom on Ubuntu
	# Tested on Ubuntu 14.04 LTS

	# Add repository for Atom
	sudo add-apt-repository ppa:webupd8team/atom -y

	# Install Atom and Git
	sudo apt-get update

	# Original blog post: <https://mnx.io/blog/a-proper-server-naming-scheme/>
	# Original word list: <http://web.archive.org/web/20091003023412/http://tothink.com/mnemonic/wordlist.txt>
	# Sample usage: `curl <gist> \| tail --lines +4 \| shuf \| head --lines 1`
	acrobat
	africa
	alaska
	albert
	albino
	album
	alcohol

	#!/bin/sh

	# PATH TO YOUR HOSTS FILE
	ETC_HOSTS=/etc/hosts

	# DEFAULT IP FOR HOSTNAME
	IP="127.0.0.1"

	# Hostname to add/remove.
	HOSTNAME=$1