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@joeyAghion
joeyAghion / simple_redis_profile.rb
Created October 13, 2010 16:00
By sampling keys from your redis databases, this script tries to identify what types of keys are occupying the most memory.
#!/usr/bin/env ruby
# Evaluates a sample of keys/values from each redis database, computing statistics for each key pattern:
# keys: number of keys matching the given pattern
# size: approximation of the associated memory occupied (based on size/length of value)
# percent: the proportion of this 'size' relative to the sample's total
#
# Copyright Weplay, Inc. 2010. Available for use under the MIT license.
@reu
reu / deploy.rb
Created November 6, 2010 12:41
Capistrano deploy recipe for database configuration
# Bundler Integration
require "bundler/capistrano"
# Application Settings
set :application, "yourapplicationname"
set :user, "serveruser"
set :deploy_to, "/home/#{user}/rails-applications/#{application}"
set :rails_env, "production"
set :use_sudo, false
set :keep_releases, 3
@niklas
niklas / rails-fields-with-errors-get-class-by-nokogiri.rb
Created January 9, 2011 21:03
Add .error CSS class to all invalid form fields. Rails wraps them in div.fieldWithErrors, which still sucks in 3.0
# put this in config/initializer/fields_with_errors.rb
ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
if html_tag =~ /<(input|label|textarea|select)/
error_class = 'error'
doc = Nokogiri::XML(html_tag)
doc.children.each do |field|
unless field['type'] == 'hidden'
unless field['class'] =~ /\berror\b/
@andruby
andruby / deploy.rb
Created January 26, 2011 19:48
Start and Stop tasks for resque workers, with capistrano deploy hook (without God)
after "deploy:symlink", "deploy:restart_workers"
##
# Rake helper task.
# http://pastie.org/255489
# http://geminstallthat.wordpress.com/2008/01/27/rake-tasks-through-capistrano/
# http://ananelson.com/said/on/2007/12/30/remote-rake-tasks-with-capistrano/
def run_remote_rake(rake_cmd)
rake_args = ENV['RAKE_ARGS'].to_s.split(',')
cmd = "cd #{fetch(:latest_release)} && #{fetch(:rake, "rake")} RAILS_ENV=#{fetch(:rails_env, "production")} #{rake_cmd}"
@fnichol
fnichol / README.md
Created March 12, 2011 20:52
Download a cacert.pem for RailsInstaller

Why?

There is a long standing issue in Ruby where the net/http library by default does not check the validity of an SSL certificate during a TLS handshake. Rather than deal with the underlying problem (a missing certificate authority, a self-signed certificate, etc.) one tends to see bad hacks everywhere. This can lead to problems down the road.

From what I can see the OpenSSL library that Rails Installer delivers has no certificate authorities defined. So, let's go fetch some from the curl website. And since this is for ruby, why don't we download and install the file with a ruby script?

Installation

The Ruby Way! (Fun)

@wxmn
wxmn / redis_helper.rb
Created March 31, 2011 13:23
How to Build a Fast News Feed in Redis and Rails
module RedisHelper
# decode Redis value back to Ruby object
def self.decode(json)
self.new(ActiveSupport::JSON.decode(json)["#{self.name.downcase}"])
end
# encode Ruby object for Redis
def encoded
self.updated_at = nil
self.to_json
@codypo
codypo / monitex
Created April 6, 2011 14:21
Monit example for restarting a service on excessive memory consumption
# Relevant example from our monitrc file.
check process couchdb with pidfile /usr/local/var/run/couchdb/couchdb.pid
start program = "/etc/init.d/couchdb start"
stop program = "/etc/init.d/couchdb stop"
if cpu > 60% for 2 cycles then alert
if cpu > 80% for 5 cycles then restart
if memory usage > 70% MB for 5 cycles then restart
@timmyomahony
timmyomahony / nginx.conf
Created June 26, 2011 13:29
Python, UWSGI, Supervisor & Nginx
upstream uwsgi {
ip_hash;
server 127.0.0.1:40000;
}
server {
listen 80;
server_name www.domain.com;
root /sites/mysite/;
access_log /sites/mysite/log/nginx/access.log;
@viola
viola / gist:1070410
Created July 7, 2011 20:00
Example of fetching Hash (key,value) to the simple_form collection.
-- model
some sort of constant hash:
HASH_NAME = {
0 => "Choose:",
1 => "On-Campus Recruiting - CSO",·
2 => "CSO Staff Referral",
3 => "Faculty Contact",·
4 => "Career Day",·
5 => "CSO Summer Job Listing",·
6 => "Alumni Contact",·
@RiANOl
RiANOl / gist:1077760
Last active April 13, 2024 06:17
AES128 / AES256 CBC with PKCS7Padding in Ruby
require "openssl"
require "digest"
def aes128_cbc_encrypt(key, data, iv)
key = Digest::MD5.digest(key) if(key.kind_of?(String) && 16 != key.bytesize)
iv = Digest::MD5.digest(iv) if(iv.kind_of?(String) && 16 != iv.bytesize)
aes = OpenSSL::Cipher.new('AES-128-CBC')
aes.encrypt
aes.key = key
aes.iv = iv