Andy Spicer andyspicer

Internet Scale Services Checklist

A checklist for designing and developing internet scale services, inspired by James Hamilton's 2007 paper "On Desgining and Deploying Internet-Scale Services."

http://mvdirona.com/jrh/talksandpapers/jamesrh_lisa.pdf

Basic tenets

Does the design expect failures to happen regularly and handle them gracefully?
Have we kept things as simple as possible?

Keybase proof

I hereby claim:

I am andyspicer on github.
I am andyspicer (https://keybase.io/andyspicer) on keybase.
I have a public key ASDoIGGW0SpapXFqAryeupqbK7RYObU3ev-0M_I-2Kx6mwo

To claim this, I am signing this object:

Docker Swarm Mode Ports

Starting with 1.12, Docker Swarm Mode is a built-in solution with built-in key/value store. Easier to get started, and fewer ports to configure.

Inbound Traffic for Swarm Management

TCP port 2377 for cluster management & raft sync communications
TCP and UDP port 7946 for "control plane" gossip discovery communication
UDP port 4789 for "data plane" VXLAN overlay network traffic

AWS Security Group Example

AWS Tip: You should use Security Groups in AWS's "source" field rather then subnets, so SG's will all dynamically update when new nodes are added.

	#!/bin/bash
	#
	# Watch current directory (recursively) for file changes, and execute
	# a command when a file or directory is created, modified or deleted.
	#
	# Written by: Senko Rasic <[email protected]>
	#
	# Requires Linux, bash and inotifywait (from inotify-tools package).
	#
	# To avoid executing the command multiple times when a sequence of

	#!/bin/bash
	######################################################################
	# Raspberry Pi
	#
	# Gross Script by Dweeber (Kevin Reed) <[email protected]>
	# V1.0 2012-09-19
	#
	# Use the vcgencmd to obtain the Temp of the SOC
	# then calculates the F value using bc.
	#

	---
	# ^^^ YAML documents must begin with the document separator "---"
	#
	#### Example docblock, I like to put a descriptive comment at the top of my
	#### playbooks.
	#
	# Overview: Playbook to bootstrap a new host for configuration management.
	# Applies to: production
	# Description:
	# Ensures that a host is configured for management with Ansible.

	#!/usr/bin/env bash

	# Script to reverse engineer the build of a given Debian / Ubuntu server
	# I do this all the time: take an existing server, create a Bash / Ansible / Puppet / Chef
	# built script, to allow Continuous Depoyment.
	# It's tedious, but this script will give you the basics to get started.
	# Make sure you have "sudo" access to get all the details.


	# setup folders

	#!/bin/sh

	apt-get -y install git bc
	git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt
	mkdir /etc/letsencrypt

	;; Credit: Duncan Halliday https://members.iracing.com/jforum/posts/list/1925/3552959.page#11764145

	;; FFB UP

	#IfWinActive, ahk_exe iRacingSim64DX11.exe
	6Joy23::
	IfWinExist ahk_exe irFFB.exe
	{
	WinActivate
	Sleep, 100 ;