Grant Firefishy

Pushing to Multiple Git Repos

If a project has to have multiple git repos (e.g. Bitbucket and Github) then it's better that they remain in sync.

Usually this would involve pushing each branch to each repo in turn, but actually Git allows pushing to multiple repos in one go.

If in doubt about what git is doing when you run these commands, just

Prerequisites : the letsencrypt CLI tool

This method allows your to generate and renew your Lets Encrypt certificates with 1 command. This is easily automatable to renew each 60 days, as advised.

You need nginx to answer on port 80 on all the domains you want a certificate for. Then you need to serve the challenge used by letsencrypt on /.well-known/acme-challenge. Then we invoke the letsencrypt command, telling the tool to write the challenge files in the directory we used as a root in the nginx configuration.

I redirect all HTTP requests on HTTPS, so my nginx config looks like :

server {

Docker Machine OSX Autostart

This is a simple launchd config that will start your default docker-machine on startup. You can customize the machine that is started by updating lines 11 and 16 with the correct machine name.

Install

Copy the file com.docker.machine.default.plist below to ~/Library/LaunchAgents/com.docker.machine.default.plist.
Run the following in a terminal: launchctl load ~/Library/LaunchAgents/com.docker.machine.default.plist
Profit!

Edward Snowden at IETF 93

Edward Snowden answered questions after a showing of CITIZENFOUR at the IETF93 meeting; this is a transcript of the video recording.

For more information, see the Internet Society article.

Introduction
Scale of Pervasive Monitoring
Returning to the US
Preserving the Internet

Configuration Management System (CMS)/ Configuration Management Database (CMDB)

Overview

The Configuration Management System (CMS) is a set of tools and data that is used for collecting, storing, managing, updating, analyzing and presenting data about all configuration items and their relationships. A CMS may manage more than one physical Configuration Management Databases (CMDB). Its underlying structure is defined by the Configuration Model, a logical model of the IT organization’s service assets. The CMS is used to store information on all Configuration Items (CIs) under the control of Configuration Management. CIs can be of various types: the CMS almost always covers services and IT infrastructure, but might also cover other item types like policies, project documentation, employees, suppliers, etc.

Configuration Model and CI Types

I've been interested in computer vision for a long time, but I haven't had any free time to make any progress until this holiday season. Over Christmas and the New Years I experimented with various methodologies in OpenCV to detect road signs and other objects of interest to OpenStreetMap. After some failed experiments with thresholding and feature detection, the excellent /r/computervision suggested using the dlib C++ module because it has more consistently-good documentation and the pre-built tools are faster.

After a day or two figuring out how to compile the examples, I finally made some progress:

Compiling dlib C++ on a Mac with Homebrew

Clone dlib from Github to your local machine:

	<!-- Avoid the M.A.D. Gadget vulnerability in certain apache commons-collections versions -->
	<project>
	<!-- ... -->
	<build>
	<plugins>
	<plugin>
	<artifactId>maven-enforcer-plugin</artifactId>
	<executions>
	<execution>
	<goals><goal>enforce</goal></goals>

	LoadModule mapcache_module /usr/lib/apache2/modules/mod_mapcache.so
	<VirtualHost *:80>
	# The ServerName directive sets the request scheme, hostname and port that
	# the server uses to identify itself. This is used when creating
	# redirection URLs. In the context of virtual hosts, the ServerName
	# specifies what hostname must appear in the request's Host: header to
	# match this virtual host. For the default virtual host (this file) this
	# value is not decisive as it is used as a last resort host regardless.
	# However, you must set it for any further virtual host explicitly.
	#ServerName www.example.com

	#!/usr/bin/env ruby

	require 'selenium-webdriver'

	wd = Selenium::WebDriver.for :remote, url: 'http://10.3.1.7:4444/wd/hub', desired_capabilities: :chrome
	wd.navigate.to 'https://snipt.net/restrada/python-selenium-workaround-for-full-page-screenshot-using-chromedriver-2x/'

	# Get the actual page dimensions using javascript
	#
	width = wd.execute_script("return Math.max(document.body.scrollWidth, document.body.offsetWidth, document.documentElement.clientWidth, document.documentElement.scrollWidth, document.documentElement.offsetWidth);")

	$ wp post list --format=ids \| xargs wp post update --comment_status=closed

	# Output:
	# Success: Updated post 2514.
	# Success: Updated post 2511.
	# Success: Updated post 2504.
	# Success: Updated post 2499.
	# Success: Updated post 2441.
	# etc...