Mike Dillion mikedillion

Auto-enable Local HTTP Caching in Test Kitchen

Note: total experiment and hack, looks nasty, could be awesome:

Setup

Drop the kitchen.local.yml into $HOME/.kitchen/config.yml
Install polipo (with Mac: brew install polipo, with Ubuntu: apt-get install polipo)
Drop polipo-start and polipo-console somewhere useful (perhaps $HOME/bin?)

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

Anonymising PDFs

PDF metadata

Metadata in PDF files can be stored in at least two places:

the Info Dictionary, a limited set of key/value pairs
XMP packets, which contain RDF statements expressed as XML

PDF files

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

logstash queries graphed with graphite.

Operation: Decouple whisper from graphite.

Method: Create a graphite function that does a date histogram facet query against elasticsearch for a given query string for the time period viewed in the current graph.

Reason: graphite has some awesome math functions. Wouldn't it be cool if we could use those on logstash results?

The screenshot below is using logstash to watch the twitter stream of keywords "iphone" "apple" and "samsung" - then I graph them each, so we get an idea of popularity. As a bonus, I also do a movingAverage() on the iphone curve to show you why this is awesome.

	[MASTER]

	# Specify a configuration file.
	#rcfile=

	# Python code to execute, usually for sys.path manipulation such as
	# pygtk.require().
	#init-hook=

	# Profiled execution.

	#!/usr/bin/perl -w # camel code
	use strict;

	$_='ev
	al("seek\040D
	ATA,0, 0;");foreach(1..3)
	{<DATA>;}my @camel1hump;my$camel;
	my$Camel ;while( <DATA>){$_=sprintf("%-6
	9s",$_);my@dromedary 1=split(//);if(defined($
	_=<DATA>)){@camel1hum p=split(//);}while(@dromeda

	;SMBDIS.ASM - A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY
	;by doppelganger ([email protected])

	;This file is provided for your own use as-is. It will require the character rom data
	;and an iNES file header to get it to work.

	;There are so many people I have to thank for this, that taking all the credit for
	;myself would be an unforgivable act of arrogance. Without their help this would
	;probably not be possible. So I thank all the peeps in the nesdev scene whose insight into
	;the 6502 and the NES helped me learn how it works (you guys know who you are, there's no

	#!/bin/sh
	### BEGIN INIT INFO
	# Provides: gunicorn_scweb
	# Required-Start: $network $local_fs
	# Required-Stop:
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: SimpleCounter Web
	# Description: Yumemi Inc.
	#### END INIT INFO

	from json import load, JSONEncoder
	from optparse import OptionParser
	from re import compile

	float_pat = compile(r'^-?\d+\.\d+(e-?\d+)?$')
	charfloat_pat = compile(r'^[\[,\,]-?\d+\.\d+(e-?\d+)?$')

	parser = OptionParser(usage="""%prog [options]

	Group multiple GeoJSON files into one output file.