uran1980

var redis = require("redis")
  , subscriber = redis.createClient()
  , publisher  = redis.createClient();

subscriber.on("message", function(channel, message) {
  console.log("Message '" + message + "' on channel '" + channel + "' arrived!")
});

subscriber.subscribe("test");

uran1980

// http://stackoverflow.com/a/26227662/1527470
const singleton = Symbol();
const singletonEnforcer = Symbol();

class SingletonEnforcer {
  constructor(enforcer) {
    if (enforcer !== singletonEnforcer) {
      throw new Error('Cannot construct singleton');
    }

uran1980

git branch -m old_branch new_branch         # Rename branch locally    
git push origin :old_branch                 # Delete the old branch    
git push --set-upstream origin new_branch   # Push the new branch, set local branch to track the new remote

uran1980

# http://blog.teamtreehouse.com/the-absolute-beginners-guide-to-sass
# Enter the folder you want to convert in your terminal and type in:
# ---------------------------------------------------------------------
# sudo apt get install ruby-sass
# ---------------------------------------------------------------------

sass-convert --from sass --to scss -R .

# where -R means recursively and . means the current directory.

uran1980

/var/log/nginx_*.log {
  daily
  compress
  delaycompress
  rotate 2
  missingok
  nocreate
  sharedscripts
  postrotate
    test ! -f /var/run/nginx.pid || kill -USR1 `cat /var/run/nginx.pid`

uran1980

require 'rubygems'
require 'chef/encrypted_data_bag_item'

secret = Chef::EncryptedDataBagItem.load_secret('data_bag_key')
data = {"id" => "mysql", "root" => "some secret password"}
encrypted_data = Chef::EncryptedDataBagItem.encrypt_data_bag_item(data, secret)

FileUtils.mkpath('data_bags/passwords')
File.open('data_bags/passwords/mysql.json', 'w') do |f|
  f.print encrypted_data.to_json

uran1980

server {
	index index.php;
	set $basepath "/var/www";

	set $domain $host;

	# check one name domain for simple application
	if ($domain ~ "^(.[^.]*)\.dev$") {
		set $domain $1;
		set $rootpath "${domain}";

uran1980

Installing Barracuda and Octopus

$ wget -q -U iCab http://files.aegir.cc/BOA.sh.txt
$ bash BOA.sh.txt
$ boa in-head public server.mydomain.org my@email o1

Now simply watch the progress and choose some platforms to include. Done!

And how to upgrade Barracuda and all Octopus instances?