rmoriz

Federated Chef-server'ish with consul.

Why?

Why not? I thought it'd be interesting, and maybe useful.

Goals

No centralized chef-server
Nodes still know about eachother (so chef-searchs work)
Use consul-templates / services for things that need to be updated 'realtime'
Use chef resources for installation and configuration of the rest

CoreOS mdadm RAID1 for ROOT

Setup SoftwareRAID for the CoreOS root partition without data-loss.
Only for ext4!
The Trick is to use the right volume label and fs-types :)
We assume CoreOS is on /dev/sdaX and the second RAID Device is /dev/sdb
Drawback: only / gets mirrored, Node goes down when sda fails

Boot into any recovery system like Grml
If not already done: install CoreOS

Requirements

VirtualBox
Vagrant
Packer
a Mac with a lot of Memory/CPU/Disk
great Templates/Tools from https://github.com/timsutton/osx-vm-templates

Steps

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

	"""
	Custom parser for nginx log suitable for use by Datadog 'dogstreams'.
	To use, add to datadog.conf as follows:
	dogstreams: [path to ngnix log (e.g: "/var/log/nginx/access.log"]:[path to this python script (e.g "/usr/share/datadog/agent/dogstream/nginx.py")]:[name of parsing method of this file ("parse")]
	so, an example line would be:
	dogstreams: /var/log/nginx/access.log:/usr/share/datadog/agent/dogstream/nginx.py:parse
	Log of nginx should be defined like that:
	log_format time_log '$time_local "$request" S=$status $bytes_sent T=$request_time R=$http_x_forwarded_for';
	when starting dd-agent, you can find the collector.log and check if the dogstream initialized successfully
	"""

	#!/usr/bin/env ruby

	require 'chef-api'
	require 'fauxhai'

	include ChefAPI::Resource

	ChefAPI.configure do \|config\|
	config.endpoint = 'http://HOSTNAME:4545'
	config.client = 'admin'

	#!/usr/bin/env ruby

	###################################################
	## Display screen dimensions in macOS using ruby ##
	##################################################
	# found https://developer.apple.com/reference/coregraphics/1456395-cgdisplaybounds?language=objc
	# --> use CoreGraphics framework
	# --> CGRect CGDisplayBounds(CGDirectDisplayID display);

	#############################################

	#!/usr/bin/swift

	// DISCLAIMER

	// This script modifies an unencrypted file associated with the trial version of Final Cut Pro.
	// Under the DMCA (17 U.S.C. § 1201), this modification does not qualify as circumvention of a technological
	// protection measure (TPM), as it does not involve bypassing encryption, authentication, or similar protections.
	// Distributing this code is therefore legal under the DMCA.

	// This script is intended for educational and research purposes, such as exploring trial-related file structures,

	brew cask install xquartz
	brew install amiaopensource/amiaos/decklinksdk
	brew tap homebrew-ffmpeg/ffmpeg
	brew install homebrew-ffmpeg/ffmpeg/ffmpeg $(brew options homebrew-ffmpeg/ffmpeg/ffmpeg --compact)

	// 3D Dom viewer, copy-paste this into your console to visualise the DOM as a stack of solid blocks.
	// You can also minify and save it as a bookmarklet (https://www.freecodecamp.org/news/what-are-bookmarklets/)
	(() => {
	const SHOW_SIDES = false; // color sides of DOM nodes?
	const COLOR_SURFACE = true; // color tops of DOM nodes?
	const COLOR_RANDOM = false; // randomise color?
	const COLOR_HUE = 190; // hue in HSL (https://hslpicker.com)
	const MAX_ROTATION = 180; // set to 360 to rotate all the way round
	const THICKNESS = 20; // thickness of layers
	const DISTANCE = 10000; // ¯\\_(ツ)_/¯