Merge pull request #2057 from icco/fix_image_test

[google|compute] Fix insert disk to deal with changes to insert image.

lib/fog/google/examples/launch_micro_instance.rb

@@ -1,16 +1,21 @@
 def test
   connection = Fog::Compute.new({ :provider => "Google" })
   time = Time.now.utc.to_i
-  disk = connection.disks.create({:name => 'foggydisk', :size_gb => 10, :zone_name => 'us-central1-a', :image_name => 'centos-6-v20130522'})
+  disk = connection.disks.create({
+    :name => 'foggydisk',
+    :size_gb => 10,
+    :zone_name => 'us-central1-a',
+    :image_name => 'centos-6-v20130522',
+  })
 
   disk.wait_for { disk.ready? }
   params = {
     :name => "fog-smoke-test-#{Time.now.to_i}",
     :machine_type => "f1-micro",
-      :zone_name => "us-central1-a",
-      :disks => [ disk.get_as_boot_disk(true) ],
-      :kernel => 'gce-v20130522',
-      :user => ENV['USER']
+    :zone_name => "us-central1-a",
+    :disks => [ disk.get_as_boot_disk(true) ],
+    :user => ENV['USER'],
+    :kernel => 'gce-v20130522',
   }
 
   server = connection.servers.bootstrap params

lib/fog/google/requests/compute/insert_disk.rb

@@ -18,12 +18,19 @@ module Fog
             'project' => @project,
             'zone' => zone_name
           }
+
           if image_name
-            # We don't know the owner of the image.
-            image = images.create({:name => image_name})
+            begin
+              image = images.get(image_name)
+            rescue Fog::Errors::Error
+              # We don't know the owner of the image.
+              image = images.create({:name => image_name})
+            end
+
             @image_url = @api_url + image.resource_url
             parameters['sourceImage'] = @image_url
           end
+
           body_object = {
             'name' => disk_name,
             'sizeGb' => disk_size,