brianredbeard

#!/bin/bash

set -e -u -o pipefail

# Provide a default list of users.  This can be overriden by supplying the
# environment variable "USERS"
USERS=${USERS:-'brianredbeard chancez crawford ivancherepov kbrwn'}

for name in ${USERS}; do
        curl -Ls http://github.com/${name}.keys | \

brianredbeard

#!/bin/sh

# This script will make two connected output sources mirrors of each other:
#
#
#   +---------------+   +---------------+
#   |               |   |               |
#   |  Primary      |   | DisplayLink   |
#   |  Display      |   | (DP-2-2)      |
#   |  (e-DPI-1)    |   | (Screen 2/3)  |

brianredbeard

QEMU arm64 cloud server emulation

This is basically a rehash of an original post on CNXSoft - all credit (particularly for the Virtio device arguments used below) belongs to the author of that piece.

Download the latest uefi1.img image. E.g. ubuntu-16.04-server-cloudimg-arm64-uefi1.img from https://cloud-images.ubuntu.com/releases/16.04/release/

Download the UEFI firmware image QEMU_EFI.fd from https://releases.linaro.org/components/kernel/uefi-linaro/latest/release/qemu64/

Determine your current username and get your current ssh public key:

brianredbeard

#!/usr/bin/python
#
# Copyright 2017 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#

brianredbeard

# Set the following values before any processing occurs:
#    RS (record separator) to an empty line
#    FS (field separator) to a newline
#    OFS (output field separator) to a comma
BEGIN { RS = "" ; FS = "\n" ; OFS=","}
{ for (i=1;i<=NF;i++) {
# Add a line for each field to be extracted, replacing the field name in
#  all three spots:
       if ($i ~ "^cn: ") { cn=gensub("^cn: ","","g",$i) }
       if ($i ~ "^title: ") { title=gensub("^title: ","","g",$i) }

brianredbeard

#usage "en: <b>Calculate the price of a dual-layer PCB if you order them at OSH Park.</b>"
           "<p>Usage: run oshprice</p>"
           "<p>Author: <author>Arno Moonen &lt;info@arnom.nl&gt;</author><br />"
           "Version: <em>201405042026</em></p>"

// THIS PROGRAM IS PROVIDED AS IS AND WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED

void main() {
	if(!board) {
		// No board

brianredbeard

#!/usr/bin/env python3
# Brian 'redbeard' Harrington
# License: GPLv3
# For my presentations, I'm a huge fan of visual consistency and attribution
# This strips ugliness from assets from the noun projevct and outputs the things
# i need to attribute for my slides
`
import pathlib
import sys

brianredbeard

####
#
# BUILD CONTAINER 
#
####

FROM alpine:latest as build

# Setup a work environment and retrieve the sources

brianredbeard

Container / VM Bridging

About

Traditionally virtual machines and containers are exposed on a bridge which is solely available behind a single IP address exposed behind network/port address translation (NAT/PAT). This is, in general an acceptable practice but leads to some configuration challenges when testing out technologies like network booting of hosts, firewalling, equal cost multipath, etc.

This configuration will allow a user to move the IP address of the host to an internal bridge

brianredbeard

#!/usr/bin/env python

import boto3
import logging
import sys
from pprint import pprint 
from time import sleep

import botocore.exceptions