from_cloud.rb

#!/usr/bin/env ruby
# This script downloads the current backup from Rackspace Cloud file storage as made by the too cloud script and mounts the raw disk image checking the contents of the /var/log/date file for validity of the current date. (which was created by an hourly cronjob on the live running guest before the backup was taken).
require 'rubygems'
require 'cloudfiles'

guest = ARGV[0]
path = ARGV[1] ||= "/opt/dump"
container = ARGV[2] ||= "eudc"


def check_file(path, filename)
  system("cat #{path}/#{filename}* >> #{path}/#{filename}.gz")
  puts "SHA1SUM of compressed backup: "
  system("sha1sum #{path}/#{filename}.gz")
  system("gunzip #{path}/#{filename}.gz")
  system("/sbin/losetup -o 1048576 /dev/loop5 #{path}/#{filename}")
  system("/bin/mount /dev/loop5 /mnt -t ext4 -o defaults,noatime,nodiratime,ro,errors=remount-ro")
  if File.exists?("/mnt/var/log/date")
    puts "\n\nBackup from: "
    system("cat /mnt/var/log/date\n")
  else
    puts "\n\nBackup Error - Check download files\n"
  end
  system("/bin/umount /dev/loop5")
  system("/sbin/losetup -d /dev/loop5")
#  system("rm -rf #{path}/#{filename}*")
end

def list_file(guest, container, cf, path)
  cfcontainer = cf.container("#{container}")
  cloud_files = cfcontainer.objects
  cloud_list = Array.new()
  cloud_day = String.new()
  cloud_files.each do |cloud_file|
    if cloud_file =~ /#{guest}/
      puts "Matched: #{cloud_file}"
      cloud_list.push(cloud_file) 
    end
  end
  unless cloud_list.empty?
    cloud_list.each do |list_file|
      if list_file =~ /\.00/
        cloud_day = "#{list_file.split('.')[0]}.#{list_file.split('.')[1]}"
        puts "Found 00 file for backup set: #{cloud_day}"
      end
    end
    cloud_list.each do |list_file|
      if list_file =~ /#{cloud_day}/
        puts "Collecting File from rackspace: #{list_file}"
        cmd = "curl -o #{path}/#{list_file} -H 'X-Auth-Token: #{cf.authtoken}' https://#{cf.storagehost}/v1/MossoCloudFS_d6b9d71d-fd4c-44d6-9a7e-6578cad25d3a/#{container}/#{list_file}"
        system(cmd)
      end
    end
    check_file(path, cloud_day)
  end
end

if !(guest)
 puts "No guest code entered"
  exit 1
end
unless File.directory?(path)
  puts "Dump Directory #{path} does not exist!"
  exit 1
end

cf = CloudFiles::Connection.new(:username => "XXXXXX", :api_key => "XXXXXXXXX", :auth_url => CloudFiles::AUTH_UK)
list_file(guest, container, cf, path)