Adding example to bootstrap server with custom ssh_key

lib/fog/rackspace/examples/compute_v2/bootstrap_server.rb

@@ -0,0 +1,98 @@
+#!/usr/bin/env ruby
+
+# This example demonstrates creating a server with the Rackpace Open Cloud
+
+require 'rubygems' #required for Ruby 1.8.x
+require 'fog'
+require 'base64' #required to encode files for personality functionality
+require 'sshkey' #required to generate ssh keys. 'gem install sshkey'
+
+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
+
+# Generates a ssh key using the SSHKey library. The private key is avaialble via
+# the '.private_key' and the public key is avaialble via '.ssh_public_key'
+def generate_ssh_key
+  SSHKey.generate
+end
+
+# create Next Generation Cloud Server service
+service = Fog::Compute.new({
+  :provider             => 'rackspace',
+  :rackspace_username   => rackspace_username,
+  :rackspace_api_key    => rackspace_api_key,
+  :version => :v2,  # Use Next Gen Cloud Servers
+  :rackspace_region => :ord #Use Chicago Region
+})
+
+# pick the first flavor
+flavor = service.flavors.first
+
+# pick the first Ubuntu image we can find
+image = service.images.find {|image| image.name =~ /Ubuntu/}
+
+# prompt for server name
+server_name = get_user_input "\nEnter Server Name"
+
+# generate the ssh key
+ssh_key = generate_ssh_key
+
+# reload flavor in order to retrieve all of its attributes
+flavor.reload
+
+puts "\nNow creating server '#{server_name}' the following with specifications:\n" 
+puts "\t* #{flavor.ram} MB RAM"
+puts "\t* #{flavor.disk} GB"
+puts "\t* #{flavor.vcpus} CPU(s)"
+puts "\t* #{image.name}"
+puts "\n"
+
+begin
+  # bootstrap server
+  server = service.servers.bootstrap :name => server_name, 
+                                     :flavor_id => flavor.id, 
+                                     :image_id => image.id,
+                                     :private_key => ssh_key.private_key,
+                                     :public_key => ssh_key.ssh_public_key
+
+  if server.ready?
+    puts "[DONE]\n\n"
+
+    puts "The server has been successfully created.\n"
+    puts "Write the following ssh keys to you ~/.ssh directory in order to log in\n\n"
+    puts "+++++++++++PRIVATE_KEY (~/.ssh/fog_key)++++++++++++"
+    puts ssh_key.private_key
+    puts "++++++++++PUBLIC_KEY (~/.ssh/fog_key.pub)++++++++++"
+    puts ssh_key.ssh_public_key
+    puts "+++++++++++++++++++++++++++++++++++++++++++++++++++i\n\n"
+
+    puts "You can then log into the server using the following command\n"
+    puts "ssh #{server.username}@#{server.public_ip_address}\n\n"
+  else
+    puts "An error occured, please try again"
+  end
+  
+rescue Fog::Errors::TimeoutError
+  puts "[TIMEOUT]\n\n"
+  
+  puts "This server is currently #{server.progress}% into the build process and is taking longer to complete than expected."
+  puts "You can continute to monitor the build process through the web console at https://mycloud.rackspace.com/\n\n" 
+end
+
+puts "To delete the server please execute the delete_server.rb script\n\n"
+
+