Charlie Knudsen charliek

Make it real

Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.

Ship it

Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.

Do it with style

Rectifier

The diode bridge is the simplest rectifier I know.

Rectifier lets you share a directory with a docker container (just like $yourvm shared folders).

You don't have to install anything in your containers, and you only need to install diod in the host. diod is packaged on Ubuntu/Debian distros, and will automatically be apt-get install-ed if needed.

Since it uses diod to make a bridge, I called it rectifier. Yeah, that sucks, so if you have a better name, I'll steal it!

	#!/bin/bash -e

	IFADDR="192.168.3.1/24"

	if [[ ! ip link show docker0 ]]; then
	ip link add docker0 type bridge
	ip addr add "$IFADDR" dev docker0
	ip link set docker0 up
	iptables -t nat -A POSTROUTING -s "$IFADDR" ! -d "$IFADDR" -j MASQUERADE
	fi

	package com.example.rx_okhttp;

	import com.squareup.okhttp.OkHttpClient;
	import org.apache.http.*;
	import org.apache.http.entity.InputStreamEntity;
	import org.apache.http.message.BasicHeader;
	import org.apache.http.message.BasicHttpResponse;
	import rx.Observable;
	import rx.Observer;
	import rx.Scheduler;

	#!/usr/bin/env python

	"""
	This module will bootstrap a machine using chef. The purpose of this
	script is actually to work with AWS Auto Scaling Groups. The user data
	for the Launch Configuration is set to download this script and then
	run it. This is also stores the results in a private gist and sends
	a message to logstash with the results.
	"""

	apply plugin:'groovy'
	apply plugin:'idea'

	repositories { mavenCentral() }

	dependencies {
	groovy 'org.codehaus.groovy:groovy-all:1.8.4'
	}

	task makeDirs(description:'make all dirs for project setup') << {

	apply plugin:'groovy'
	apply plugin:'idea'

	repositories { mavenCentral() }

	dependencies {
	groovy 'org.codehaus.groovy:groovy-all:1.8.2'
	}

	task makeDirs(description:'make all dirs for project setup') << {

	# Source accepts the protocol region:// with the host as the bucket
	# access_key_id and secret_access_key are just that

	# for the eu-west-1 region:
	s3_file "/var/bulk/the_file.tar.gz" do
	source "s3-eu-west-1://your.bucket/the_file.tar.gz"
	access_key_id your_key
	secret_access_key your_secret
	owner "root"
	group "root"

	eventsource
	go-eventsource
	client/client