mmrwoods

Make me a new CentOS linode

Notes:

• Instructions written for CentOS 6.3
• Change, me, myhost, myip etc. to your username, hostname, ip address and so on.
• Run all commands as root unless otherwise directed.
• You might want to look at mounting /var and /home on separate partitions.
• I've just allowed all members of the wheel group to operate as root. This is the height of laziness and highlights the fact that I'm just a developer that's stolen a sysadmin's

mmrwoods

#!/usr/bin/env ruby

require 'bundler'
require 'hirb'
require 'csv'

lock_file = Bundler::LockfileParser.new(Bundler.read_file("Gemfile.lock"))

def url_for(spec)
  case spec.source

mmrwoods

#!/usr/bin/env ruby

# Dumb-ass backup - better than no backup!
#
# Run nightly and enjoy daily, weekly and monthly filesystem backups
#
# - default destination directory is /var/local/backup
# - latest, daily, weekly and monthly sub-directories are created
# - latest directory should only ever contain the latest backup
# - latest backup copied to daily, weekly and monthly directories as required

mmrwoods

require 'active_support'
require 'hirb'
require 'debugger'

user = 'thickpaddy' # FIXME: get from argv

def send_request(url, content=nil)
  curl_opts = ["--max-time 30", "--silent"]
  if content
    curl_opts << "--header 'Content-Type: application/json'"

mmrwoods

module Importing
  module HumanAttributeNameWriters

    def self.included(base)
      base.new # Force activerecord to initialize attributes

      # only allow accessible attributes that are not foreign keys or nested attributes
      foreign_keys = Agent.reflect_on_all_associations.map(&:association_foreign_key)
      allowed_attributes = base.accessible_attributes.select do |name|
        name.present? && !foreign_keys.include?(name) && !name.match(/_attributes$/)

mmrwoods

namespace :account do

  desc "Change the deploy user password"
  task :reset_password do
    deploy_user = user
    deploy_pass = generate_password
    as_sudo_user do
      find_servers.each do |server|
        if read_file("/etc/passwd", :hosts => server.host).lines.grep(/#{deploy_user}:/).any?
          run "echo \"#{deploy_user}:#{deploy_pass}\" | #{sudo} chpasswd", :hosts => server.host

mmrwoods

# Rails email validator is required by the secure validatable module in devise security extension
# However, it handles internation domain names and does mx lookups by default, and there's no easy way to change this default.
class EmailValidator
  def validate_mx?
    options[:validate_mx] == true
  end
  def allow_idn?
    options[:allow_idn] == true
  end
end

mmrwoods

module ActiveRecord
  module NestedAttributes
    module ClassMethods

      # Skips validation of associated objects unless nested attributes have been provided.
      #
      # This is a horrid workaround for the fact that nested_attributes_for sets the autosave
      # option for each assocation to true, which causes validation to fail for associated
      # objects that have been loaded, whether any nested attributes have been provided or not.
      # This causes problems with the parent object is updated from forms that don't include

mmrwoods

require 'highline/import'

def highlight(str)
  "\e[33m" + str + "\e[0m"
end

def run_cmd(cmd)
  say highlight "Executing \"#{cmd}\""
  Timeout::timeout(30) do
    IO.popen(cmd).each{ |line| print line }

mmrwoods

class Address < ActiveRecord::Base

  attr_accessible :line_1, :line_2, :line_3, :town, :region, :postcode

  validates :line_1, :postcode, :presence => true
  validates :postcode, :postcode => true, :allow_blank => true

  after_validation do
    self.postcode = PostalCode.new(self.postcode).to_formatted_s
  end