I've been trying to understand how to setup systems from
the ground up on Ubuntu. I just installed redis
onto
the box and here's how I did it and some things to look
out for.
To install:
By default, Rails applications build URLs based on the primary key -- the id
column from the database. Imagine we have a Person
model and associated controller. We have a person record for Bob Martin
that has id
number 6
. The URL for his show page would be:
/people/6
But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6
here, is called the "slug". Let's look at a few ways to implement better slugs.
#Mobile Device Detection via User Agent RegEx
Yes, it is nearly 2012 and this exercise has been done to death in every imaginable language. For my own purposes I needed to get the majority of non-desktop devices on to a trimmed down, mobile optimized version of a site. I decided to try and chase down an up-to-date RegEx of the simplest thing that could possibly work.
I arrived at my current solution after analyzing 12 months of traffic over 30+ US based entertainment properties (5.8M+ visitors) from Jan - Dec 2011.
The numbers solidified my thoughts on the irrelevancy of including browsers/OSes such as Nokia, Samsung, Maemo, Symbian, Ipaq, Avant, Zino, Bolt, Iris, etc. The brass tacks of the matter is that you certainly could support these obscure beasts, but are you really going to test your site on them? Heck, could you even find one?! Unless the folks that pay you are die hard Treo users my guess is "No".
Interestingly enough my research shows that /Mobile/ is more efficient than **/iP(
# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed. | |
# We use latest stable nginx with fresh **openssl**, **zlib** and **pcre** dependencies. | |
# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module | |
# | |
# Deployment structure | |
# | |
# SERVER: | |
# /etc/init.d/nginx (1. nginx) | |
# /home/app/public_html/app_production/current (Capistrano directory) | |
# |
################################################################################ | |
# script: Base.coffee | |
# author: Ryan Florence <[email protected]> | |
# license: MIT-Style License | |
# | |
# A surprisingly useful base class for CoffeeScript. Inspired by my old | |
# friend, MooTools Class. Provides default options, mixins, and custom events. | |
class Base | |
defaults: {} |
This configuration works with Upstart on Ubuntu 12.04 LTS
The reason why it needs to be done this way (i.e. with the pre-start
and post-stop
stanzas), is because Upstart
is unable to track whever Unicorn master process re-execs itself on hot deploys. One can use it without hot-deploys
and run Unicorn in foreground also, it then only needs one exec stanza.
This presumes you are not using RVM, so no voodoo dances.
Updated for Rails 4.0.0+
Set up the bower
gem.
Follow the Bower instructions and list your dependencies in your bower.json
, e.g.
// bower.json
{
Create droplet of your liking (ubuntu 12.10 x32)
ssh to root in terminal with your server ip
ssh [email protected]
Add ssh fingerprint and enter password provided in email
# unicorn | |
description "unicorn ruby app server" | |
start on (local-filesystems and net-device-up IFACE=lo and runlevel [2345]) | |
stop on runlevel [!2345] | |
env WORKDIR=/data | |
env PIDFILE=/data/tmp/pids/unicorn.pid | |
env CFGFILE=/data/config/unicorn.rb |
(function() { | |
var CSSCriticalPath = function(w, d, opts) { | |
var opt = opts || {}; | |
var css = {}; | |
var pushCSS = function(r) { | |
if(!!css[r.selectorText] === false) css[r.selectorText] = {}; | |
var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/); | |
for(var i = 0; i < styles.length; i++) { | |
if(!!styles[i] === false) continue; | |
var pair = styles[i].split(": "); |