Script for upgrading the number of CPU cores and the amount of memory in SoftLayer Computing instances

softlayer_upgrade.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'softlayer_api'

if ARGV.size != 3
  STDERR.puts "USAGE: #{$0} hostname cores mem"
  exit 1
end

hostname, cores, mem = ARGV
cores     = cores.to_i
mem       = mem.to_i

def client(service)
  service_options = {
    :username => ENV['SL_USERNAME'],
    :api_key => ENV['SL_API_KEY']
  }
  if %x{hostname -f}.chomp =~ /.private$/
    service_options[:endpoint_url] = SoftLayer::API_PRIVATE_ENDPOINT
  end

  SoftLayer::Service.new "SoftLayer_#{service}", service_options
end

## Find the guest by hostname

guests = client('Account').object_mask('id', 'hostname').getHourlyVirtualGuests
unless guest = guests.detect {|g| g['hostname'] == hostname}
  STDERR.puts "Cannot find host #{hostname}"
  exit 2
end

## Get price ids

items = client('Product_Package').object_with_id(46).object_mask('description', 'capacity', {'prices' => 'id'}, {'categories' => 'id'}).getItems
prices = items.map do |item|
  if (item['categories'].detect {|c| c['id'] == 80} and item['capacity'] == cores.to_s and item['description'] !~ /^Private/) or
     (item['categories'].detect {|c| c['id'] == 3} and item['capacity'] == mem.to_s)
    item['prices'].first
  end
end.compact

## Submit upgrade order

order = {
  'complexType' => 'SoftLayer_Container_Product_Order_Virtual_Guest_Upgrade',
  'virtualGuests' => [guest],
  'prices' => prices,
  # MAINTENANCE_WINDOW will be parsed with PHP's strtotime()
  'properties' => [{ :name => 'MAINTENANCE_WINDOW', :value => 'now'}]
}

order_client = client('Product_Order')
begin
  order_client.verifyOrder(order)
  order_client.placeOrder(order)
rescue SoftLayer::SoftLayerAPIException => err
  STDERR.puts "There has been a problem with the upgrade request:\n  #{err}"
  exit 3
end