wilhelm-murdoch

#!/usr/bin/env bash

set -eo pipefail

[[ -n "${VERBOSE}" ]] && set -x

read text

while [[ $index -lt "${#text}" ]]; do
  swap=$(( $RANDOM % 10 ))

wilhelm-murdoch

Keybase proof

I hereby claim:

• I am wilhelm-murdoch on github.
• I am wilhelm (https://keybase.io/wilhelm) on keybase.
• I have a public key ASBZm_maWfr3d882kURWC8C-i0iQFkBeuNWDtW2xi6sPxgo

To claim this, I am signing this object:

wilhelm-murdoch

#!/usr/bin/env bash

set -eo pipefail

[[ -n "${VERBOSE}" ]] && set -x

metadata() {
  curl -s --connect-timeout 2 --fail "http://169.254.169.254/latest/meta-data/$*"
}

wilhelm-murdoch

#!/usr/bin/env bash

set -eo pipefail

[[ -n "${VERBOSE}" ]] && set -x

for region in $(aws ec2 describe-regions | jq -r '.Regions[].RegionName'); do
  for sg in $(aws ec2 describe-security-groups --region="${region}" | jq -r '.SecurityGroups[].GroupId'); do
    if [[ $(aws ec2 describe-network-interfaces --region="${region}" --filters Name=group-id,Values="${sg}" | jq -r '.NetworkInterfaces | length') -eq 0 ]]; then
      echo "${sg} in ${region}"

wilhelm-murdoch

#!/usr/bin/env python

import ipaddr

accounts = {
    'flood-beta': {
        'public': [
            '10.1.32.0/20',
            '10.1.96.0/20',
            '10.1.160.0/20'

wilhelm-murdoch

Kubernetes on DigitalOcean with CoreOS

Let's look at an example of how to launch a Kubernetes cluster from scratch on DigitalOcean, including kubeadm, an Nginx Ingress controller, and Letsencrypt certificates.

Overview

Environment

We'll be creating a four-node cluster (k8s-master, k8s-000...k8s-002), load balancer, and ssl certificates.

Table of Contents

1. Install Kubernetes

wilhelm-murdoch

Gost - A simple command line utility for easily creating Gists for Github

        Usage:
         gost (--file=<file> | --clip) [--name=<name>] [--description=<description>] [--token=<token>] [--public]
         gost (--help | --version)

        Options:
          -t --token=<token>             Optional Github API authentication token. If excluded, your Gist will be created anonymously.
          -f --file=<file>               Create a Gist from file.
          -n --name=<name>               Optional name for your new Gist.

wilhelm-murdoch

Gost - A simple command line utility for easily creating Gists for Github

        Usage:
         gost (--file=<file> | --clip) [--name=<name>] [--description=<description>] [--token=<token>] [--public]
         gost (--help | --version)

        Options:
          -t --token=<token>             Optional Github API authentication token. If excluded, your Gist will be created anonymously.
          -f --file=<file>               Create a Gist from file.
          -n --name=<name>               Optional name for your new Gist.

wilhelm-murdoch

Gost - A simple command line utility for easily creating Gists for Github

        Usage:
         gost (--file=<file> | --clip) [--name=<name>] [--description=<description>] [--token=<token>] [--public]
         gost (--help | --version)

        Options:
          -t --token=<token>             Optional Github API authentication token. If excluded, your Gist will be created anonymously.
          -f --file=<file>               Create a Gist from file.
          -n --name=<name>               Optional name for your new Gist.

wilhelm-murdoch

/**
 * Number Filter
 * @Param input The number to format
 * @Param fractionSize Nubmer of decimal places to round to; defaults to 2
 * @Param groupSep Number group separator; defaults to a single space ' '
 * @Param decimalSep Decimal place separator; defaults to single period
 * @return string, ex: 1 234 345
 */
var DECIMAL_SEP = '.' // change to override default
var GROUP_SEP   = ' ' // change to override default