Tim Sandquist tsndqst

This uses terraform's template_file resource to generate a yaml properties file for serverspec to use.

create the Rakefile in your terraform project root
create a spec directory and put spec_helper.rb in it
create the templates/properties.tmpl.yml file
create the serverspec.tf
terraform apply

tests

Tests will be matched based on roles defined for a given node.

Humans build and fix systems.
Humans get tired and stressed, they feel happy and sad.
Systems don't have feelings yet. They only have SLAs.
Humans need to switch off and on again.
The wellbeing of human operators impacts the reliability of systems.
Alert Fatigue == Human Fatigue
Automate as much as possible, escalate to a human as a last resort.
Document everything. Train everyone. Save time.
Kill the shame game.
Human issues are system issues.

Setup

Add this to your .profile, .bashrc, .zshrc...

decode_base64_url() {
  local len=$((${#1} % 4))
  local result="$1"
  if [ $len -eq 2 ]; then result="$1"'=='
  elif [ $len -eq 3 ]; then result="$1"'=' 
  fi
 echo "$result" | tr '_-' '/+' | openssl enc -d -base64

#Introduction to Devops Resources:

##Chapter 1

2015 State of DevOps Report https://puppet.com/resources/white-paper/2015-state-of-devops-report

Knight Capital https://en.wikipedia.org/wiki/Knight_Capital_Group

awesome histograms

good implementations

articles

This is how I manage docker with ipv6 and dhcp-pd in arch linux

/etc/dhcpcd.conf

  duid
  persistent
  option rapid_commit
  option classless_static_routes
  option ntp_servers

	require 'gsl'
	require 'time'

	module Diskalerter
	class ThresholdEstimator
	attr_reader :timestamps, :signal, :threshold, :now

	# timestamps - a list of timestamps in epoch milliseconds
	# signal - a list of values for the provided timestamps
	# threshold - the "exhaustion" threshold (e.g., 100 for a percentage signal)

	# MikroTik (RouterOS) script for automatically setting DNS records
	# for clients when they obtain a DHCP lease.
	#
	# author SmartFinn <https://gist.github.com/SmartFinn>

	:local dnsTTL "00:15:00";
	:local token "$leaseServerName-$leaseActMAC";

	# Normalize hostname (e.g. "-= My Phone =-" -> "My-Phone")
	# - truncate length to 63 chars

	" Name: modified nofrils
	" Author: adg
	" URL: based on https://github.com/robertmeta/nofrils
	" (see this url for latest release & screenshots)
	" License: OSI approved MIT license
	" Modified: 2016 Feb 26

	hi clear
	if exists("syntax_on")
	syntax reset