Ryan Flores refactor8

Delete all containers
```
 $ docker ps -q -a | xargs docker rm
```

-q prints only the container IDs -a prints all containers

Notice that it uses xargs to issue a remove container command for each container ID

Delete all untagged images

My Blog

Running

Setup:

% docker-compose run --rm -u root web bash -c "mkdir -p /bundle/vendor && chown railsuser /bundle/vendor"
% docker-compose run --rm web bundle install
% docker-compose run --rm web bundle exec rake db:setup

Using OS X as a Syslog Server

This document describes how to set up an OS X to be a syslog server that logs messages from the local network. It was largely meant for my own purposes so that I don't forget what I did, but feel free to use it for your own purposes.

A problem with just "turning this on" is that you will not see the correct hostname in the syslog entries. What we will do is use

	digraph architecture {
	rankdir=LR;

	subgraph client_side_apps {
	front_end -> {auth_api, my_app_api};
	extension -> {auth_api, my_app_api};

	{rank=same; front_end, extension, auth_api};
	}

	vi /etc/environment

	add these lines...

	LANG=en_US.utf-8
	LC_ALL=en_US.utf-8

	.git
	.gitignore
	doc
	.yardoc
	coverage
	jsdoc
	tmp
	log
	README.md
	public/uploads/

	# Call scopes directly from your URL params:
	#
	# @products = Product.filter(params.slice(:status, :location, :starts_with))
	module Filterable
	extend ActiveSupport::Concern

	module ClassMethods

	# Call the class methods with the same name as the keys in <tt>filtering_params</tt>
	# with their associated values. Most useful for calling named scopes from

	# lib/custom_logger.rb
	class CustomLogger < Logger
	def format_message(severity, timestamp, progname, msg)
	"#{timestamp.to_formatted_s(:db)} #{severity} #{msg}\n"
	end
	end

	logfile = File.open("#{Rails.root}/log/custom.log", 'a') # create log file
	logfile.sync = true # automatically flushes data to file
	CUSTOM_LOGGER = CustomLogger.new(logfile) # constant accessible anywhere

	# Set iTerm2 tab titles
	tabTitle() { echo -ne "\033]0;"$*"\007"; }

	# Always list directory contents and set title upon 'cd'
	cd() { builtin cd "$@"; ls -lFah; tabTitle ${PWD##*/}; }

	class InitialMigration < ActiveRecord::Migration[5.0]
	def change
	enable_extension "pgcrypto" unless extension_enabled?("pgcrypto")
	end
	end