nickcharlton

// In the rare case you actually want a syncronous request
// this will wait until the data arrives before continuing
// down the file.
//
// The service where this is used fetches configuration data
// from an external service in order to run.

const axios = require('axios')

let done = false

nickcharlton

class Resource
  def validate
    missing = self.class.required_attributes[self.class.name].select do |key|
      instance_variable_get("@#{key}").nil?
    end

    if missing.any?
      raise StandardError, "Missing attributes: #{missing.join(', ')}"
    end
  end

nickcharlton

This is a particularly knarly problem, as assuming you just want to write a shell script that operates on the local system, it's very difficult to achieve.

This gives the following output when run:

/vmfs/volumes/5a551f9a-fc78330f-f85f-000c290b7d1b/debian-9-x64/debian-9-x64.vmdk
/vmfs/volumes/5a551f9a-fc78330f-f85f-000c290b7d1b/ubuntu-1604-x64/ubuntu-1604-x64.vmdk

/vmfs/volumes/5a551f9a-fc78330f-f85f-000c290b7d1b/ubuntu-1604-x64/ubuntu-1604-x64-000002.vmdk

nickcharlton

Installing PostGIS valid for PostgreSQL 9.6.2

PostGIS marks PostgreSQL as a dependency. As I write this Postgres 10 has just been released, but we don't yet want that as it'd be far ahead of Heroku Postgres.

To be able to install a valid PostGIS for 9.6.2 we need to do something like this:

% cd $(brew --repo homebrew/core)

nickcharlton

netcalc

netcalc is an extraction of Terraform's string interpolation methods for handling CIDR network strings. It uses [go-cidr][] so that the output would be exactly the same as the original.

I threw this together to allow me to understand the kinds of network a [few][example1] [examples][example2] of [Kubernetes][] ended up constructing.

nickcharlton

source "https://rubygems.org"

gem "fastlane"

nickcharlton

#
# Based upon: https://help.ubuntu.com/12.04/installation-guide/example-preseed.txt
#

# localisation
d-i debian-installer/locale string en_US.utf8
d-i console-keymaps-at/keymap select us

# networking
d-i netcfg/choose_interface select auto

nickcharlton

#!/bin/bash

set -e

plugin_dir=~/.jenkins/plugins
installed=()
discovered_dependencies=()
dependencies_to_install=()

mkdir -p $plugin_dir

nickcharlton

require "octokit"
require "csv"

Octokit.configure do |c|
  c.login = "nickcharlton"
  c.password = ENV["HOMEBREW_GITHUB_API_TOKEN"]
end

Octokit.auto_paginate = true

nickcharlton

#!/bin/bash

# set a root password of "vagrant"
debconf-set-selections <<< "mysql-server mysql-server/root_password password vagrant"
debconf-set-selections <<< "mysql-server mysql-server/root_password_again password vagrant"

apt-get install -qy libmysqlclient-dev mysql-server-5.5

# enable listening on all addresses
sed -i.bak "s/bind-address\s*= 127.0.0.1/bind-address = 0.0.0.0/g" /etc/mysql/my.cnf