adam buxton abuxton

using Ansible command line:

ansible-playbook --connection=local 127.0.0.1 playbook.yml

using inventory:

127.0.0.1 ansible_connection=local

Comprehensions in Python the Jedi way

by Bjørn Friese

Beautiful is better than ugly. Explicit is better than implicit.

-- The Zen of Python

I frequently deal with collections of things in the programs I write. Collections of droids, jedis, planets, lightsabers, starfighters, etc. When programming in Python, these collections of things are usually represented as lists, sets and dictionaries. Oftentimes, what I want to do with collections is to transform them in various ways. Comprehensions is a powerful syntax for doing just that. I use them extensively, and it's one of the things that keep me coming back to Python. Let me show you a few examples of the incredible usefulness of comprehensions.

This uses terraform's template_file resource to generate a yaml properties file for serverspec to use.

create the Rakefile in your terraform project root
create a spec directory and put spec_helper.rb in it
create the templates/properties.tmpl.yml file
create the serverspec.tf
terraform apply

tests

Tests will be matched based on roles defined for a given node.

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)

IRC Reference

by xero updated 10.29.24

Facebook: Unfollow people and pages

See comments section for more up-to-date versions of the script. The original script is from 2014 and will not work as is.

Open news feed preferences on your Facebook menu (browser)
Click people or pages
Scroll down (or click see more) until your full list is loaded
Run the script in your browser console

Facebook will block this feature for you while you use it, depending on how much entities you try to unfollow. It automatically unblocks in a couple of hours and you will be able to continue.

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

Git-workflow vs feature branching

When working with Git, there are two prevailing workflows are Git workflow and feature branches. IMHO, being more of a subscriber to continuous integration, I feel that the feature branch workflow is better suited, and the focus of this article.

If you are new to Git and Git-workflows, I suggest reading the atlassian.com Git Workflow article in addition to this as there is more detail there than presented here.

I admit, using Bash in the command line with the standard configuration leaves a bit to be desired when it comes to awareness of state. A tool that I suggest using follows these instructions on setting up GIT Bash autocompletion. This tool will assist you to better visualize the state of a branc

	node_group { 'PE Master':
	ensure => present,
	classes => {
	'pe_repo' => {},
	'pe_repo::platform::el_7_x86_64' => {},
	'puppet_enterprise::profile::master' =>
	{
	'code_manager_auto_configure' => true,
	'file_sync_enabled' => true,
	'r10k_private_key' => $code_manager_private_key_path,

	# Nginx proxy for Elasticsearch + Kibana
	#
	# In this setup, we are password protecting the saving of dashboards. You may
	# wish to extend the password protection to all paths.
	#
	# Even though these paths are being called as the result of an ajax request, the
	# browser will prompt for a username/password on the first request
	#
	# If you use this, you'll want to point config.js at http://FQDN:443/ instead of
	# http://FQDN:9200