Erik Kristensen ekristen

Create Pushover account
Create a new Application in the Pushover site.
You should now have a token and user id. You will need this for the webhook
Go to the Datadog webhooks integration
Enter Pushover for the name.
Under URL enter `https://api.pushover.net/1/messages.json?token=YOURPUSHOVERAPPTOKEN&user=YOURPUSHOVERUSERID
Under Custom Payload, enter {"title":"$EVENT_TITLE","message":"$EVENT_MSG"}
Check both Use Custom Payload and Encode as form
Create a monitor that notifies @webhook-pushover
Boom, you are done

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

How to Change Open Files Limit on OS X and macOS

This text is the section about OS X Yosemite (which also works for macOS Sierra) from https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/#mac-os-x

The last time i visited this link it was dead (403), so I cloned it here from the latest snapshot in Archive.org's Wayback Machine https://web.archive.org/web/20170523131633/https://docs.basho.com/riak/kv/2.1.4/using/performance/open-files-limit/

Mac OS X

To check the current limits on your Mac OS X system, run:

Kubernetes and Arm

Getting rke and Rancher setup to run kubernetes on arm is interesting. There is no official support yet via rancher, although there is interest and some work done towards those efforts. This is my attempt at getting a cluster of 3 Pis (2 3Bs and 1 3B+) provisioned and registered to a rancher 2 server.

Prep

I've successfully completed this both with Hypriot OS 1.9.0 and the arm64 builds https://github.com/DieterReuter/image-builder-rpi64 Both times I used the same basic cloud-init setup

	#!/bin/bash
	#
	# Author: masa
	# Date: 2014-11-11
	#
	# A script for automatically creating (from a template), starting, stopping and running
	# a command on multiple Minecraft server instances.
	# The goal is to quickly generate a huge Minecraft world in a multiprocessor environment.
	# The script is currently built around running 16 separate instances at once,
	# and the world it will generate is 50k x 50k blocks (about, a little more since it is 100 x 100 region files).

	/*
	Setup:
	npm install ws

	Usage:
	Create an API key in Rancher and start up with:

	node socket.js address.of.rancher:8080 access_key secret_key project_id
	*/
	var WebSocket = require('ws');

	# Build environment. I use vagrant ubuntu/trusty64

	sudo apt-get install build-essential git-core
	sudo git clone https://github.com/raspberrypi/tools.git /opt/tools

	export CCPREFIX="/opt/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-"

	# Get ffmpeg and x264 repos

	git clone git://source.ffmpeg.org/ffmpeg.git

	global
	log /dev/log local0
	log /dev/log local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon
	maxconn 2048

	global
	log /dev/log local0
	log /dev/log local1 notice
	chroot /var/lib/haproxy
	stats socket /run/haproxy/admin.sock mode 660 level admin
	stats timeout 30s
	user haproxy
	group haproxy
	daemon
	maxconn 2048

	const redisClient = redis.createClient(REDIS_URL);
	const listeners = Object.create(null);

	function addListener(channel, listener) {
	if (!listeners[channel]) {
	listeners[channel] = [];
	redisClient.subscribe(channel);
	}

	listeners[channel].push(listener);