Website Backup To Amazon S3 Storage

#!/usr/bin/ruby
require 'rubygems'
require 'aws/s3'
require 'net/smtp'
 
AWS::S3::Base.establish_connection!(
  :access_key_id     => 'Your S3 Access Key Goes Here',
  :secret_access_key => 'Your S3 Secret Access Key Goes Here'
)
 
$bucket = 'bucket_name_goes_here'
db_host = 'localhost'
db_user = 'database_username'
db_pass = 'database_password'
db_name = 'database_name'
site_dir = '/full/path/to/website/root'
$backup_name = 'example_com_backup'
$notify_on_error = true
$notify_from = 'myself@example.com'
$notify_to = 'myself@example.com'
$notify_port = 25
$notify_server = 'mail.example.com'
$notify_domain = 'example.com'
$notify_user = 'myself+example.com'
$notify_pass = 'emailpassword'
$notify_authtype = :plain
 
def store_file(file)
  file_base = File.basename(file)
  object_path = $backup_name+"/"+file_base
  response = AWS::S3::S3Object.store(object_path, open(file), $bucket)
  if response.error? and $notify_on_error
    error_email("Failed to store #{file}")
  end
end
 
def error_email(message)  
  #http://www.ruby-doc.org/stdlib/libdoc/net/smtp/rdoc/index.html
  Net::SMTP.start($notify_server, $notify_port, $notify_domain, $notify_user, $notify_pass, $notify_authtype) do |smtp|
    smtp.open_message_stream($notify_from, [$notify_to]) do |f|
      f.puts "From: #{$notify_from}"
      f.puts "To: #{$notify_to}"
      f.puts 'Subject: Website Backup Script Error'
      f.puts message
    end
  end
end
 
#get database dump
db_file = "#{$backup_name}.sql"
if(system("mysqldump --add-drop-table --user=#{db_user} --password=#{db_pass} --host=#{db_host} #{db_name} > #{db_file}"))
  store_file(db_file)  
else
  error_email("Failed to create #{db_file}")
end
File.delete(db_file)
 
#get filesystem tar.gz
site_file = File.join(Dir.getwd, "#{$backup_name}.tar.gz")
Dir.chdir(site_dir)
if(system("tar -czf #{site_file} *"))
  store_file(site_file)
else
  error_email("Failed to create #{site_file}")
end
File.delete(site_file)