[rackspace|auto_scale] adding autoscale examples

lib/fog/rackspace/examples/auto_scale/add_policy.rb

@@ -0,0 +1,68 @@
+#!/usr/bin/env ruby
+
+# This example demonstrates adding a poicy to an auto scaling group with the Rackpace Open Cloud
+
+require 'fog'
+
+def get_user_input(prompt)
+  print "#{prompt}: "
+  gets.chomp
+end
+
+def get_user_input_as_int(prompt)
+  str = get_user_input(prompt)
+  str.to_i
+end
+
+# Use username defined in ~/.fog file, if absent prompt for username.
+# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
+def rackspace_username
+  Fog.credentials[:rackspace_username] || get_user_input("Enter Rackspace Username")
+end
+
+# Use api key defined in ~/.fog file, if absent prompt for api key
+# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
+def rackspace_api_key
+  Fog.credentials[:rackspace_api_key] || get_user_input("Enter Rackspace API key")
+end
+
+def select_group(groups)
+  abort "\nThere are not any scaling groups in the Chicago region. Try running create_scaling_group.rb\n\n" if groups.empty?
+
+  puts "\nSelect Group For New Policy:\n\n"
+  groups.each_with_index do |group, i|
+    config = group.group_config
+    puts "\t #{i}. #{config.name}"
+  end
+
+  select_str = get_user_input "\nEnter Group Number"
+  groups[select_str.to_i]
+end
+
+
+# create auto scaling service
+auto_scale_service = Fog::Rackspace::AutoScale.new({
+  :rackspace_username   => rackspace_username,
+  :rackspace_api_key    => rackspace_api_key,
+  :rackspace_region => :ord # Use Chicago Region
+})
+
+
+# retrieve list of scaling groups
+groups = auto_scale_service.groups
+
+# prompt group
+group = select_group(groups)
+
+# prompt for policy name
+policy_name = get_user_input "Enter name for policy"
+
+# prompt for cool down period for policy
+cooldown = get_user_input_as_int "Enter cool down period in seconds"
+
+# prompt for change increment
+change = get_user_input_as_int "Enter change increment"
+
+group.policies.create :name => policy_name, :cooldown => cooldown, :type => 'webhook', :change => change
+
+puts "Policy #{policy_name} was successfully added to group"

lib/fog/rackspace/examples/auto_scale/delete_scaling_group.rb

@@ -0,0 +1,61 @@
+#!/usr/bin/env ruby
+
+# This example demonstrates deleting an auto scaling group with the Rackpace Open Cloud
+
+require 'fog'
+
+def get_user_input(prompt)
+  print "#{prompt}: "
+  gets.chomp
+end
+
+# Use username defined in ~/.fog file, if absent prompt for username.
+# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
+def rackspace_username
+  Fog.credentials[:rackspace_username] || get_user_input("Enter Rackspace Username")
+end
+
+# Use api key defined in ~/.fog file, if absent prompt for api key
+# For more details on ~/.fog refer to http://fog.io/about/getting_started.html
+def rackspace_api_key
+  Fog.credentials[:rackspace_api_key] || get_user_input("Enter Rackspace API key")
+end
+
+def select_group(groups)
+  abort "\nThere are not any groups to delete in the Chicago region. Try running create_scaling_group.rb\n\n" if groups.empty?
+
+  puts "\nSelect Group To Delete:\n\n"
+  groups.each_with_index do |group, i|
+    config = group.group_config
+    puts "\t #{i}. #{config.name}"
+  end
+
+  select_str = get_user_input "\nEnter Group Number"
+  groups[select_str.to_i]
+end
+
+
+# create auto scaling service
+auto_scale_service = Fog::Rackspace::AutoScale.new({
+  :rackspace_username   => rackspace_username,
+  :rackspace_api_key    => rackspace_api_key,
+  :rackspace_region => :ord # Use Chicago Region
+})
+
+
+# retrieve list of scaling groups
+groups = auto_scale_service.groups
+
+# prompt for group to delete
+group = select_group(groups)
+
+# min_entities and max_entities must be 0 before deleting group
+config = group.group_config
+config.min_entities = 0
+config.max_entities = 0
+config.save
+
+# delete group
+group.destroy
+
+puts "\nScaling Group '#{config.name}' has been destroyed\n\n"