Added 'instance_count' feature for EC2 driver

git-svn-id: https://svn.apache.org/repos/asf/incubator/deltacloud/trunk@1064070 13f79535-47bb-0310-9956-ffa450edef68

server/lib/deltacloud/base_driver/features.rb

@@ -197,5 +197,12 @@ def features_for_operation(collection, operation)
       end
     end
 
+    declare_feature :instances, :instance_count do
+      description "Number of instances to be launch with at once"
+      operation :create do
+        param :instance_count,  :string,  :optional
+      end
+    end
+
   end
 end

server/lib/deltacloud/drivers/ec2/ec2_driver.rb

@@ -41,6 +41,7 @@ def supported_collections
         feature :instances, :user_data
         feature :instances, :authentication_key
         feature :instances, :security_group
+        feature :instances, :instance_count
         feature :images, :owner_id
         feature :buckets, :bucket_location
         feature :instances, :register_to_load_balancer
@@ -132,12 +133,12 @@ def images(credentials, opts={})
                 convert_image(image)
               end
             end
-          else
-            owner_id = opts[:owner_id] || "amazon"
-            safely do
-              img_arr = ec2.describe_images_by_owner(owner_id, "machine").collect do |image|
-                convert_image(image)
-              end
+            return img_arr
+          end
+          owner_id = opts[:owner_id] || "amazon"
+          safely do
+            img_arr = ec2.describe_images_by_owner(owner_id, "machine").collect do |image|
+              convert_image(image)
             end
           end
           img_arr = filter_on( img_arr, :architecture, opts )
@@ -184,6 +185,10 @@ def create_instance(credentials, image_id, opts={})
           instance_options.merge!(:availability_zone => opts[:realm_id]) if opts[:realm_id]
           instance_options.merge!(:instance_type => opts[:hwp_id]) if opts[:hwp_id]
           instance_options.merge!(:group_ids => opts[:security_group]) if opts[:security_group]
+          instance_options.merge!(
+            :min_count => opts[:instance_count],
+            :max_count => opts[:instance_count]
+          ) if opts[:instance_count] and opts[:instance_count].length!=0
           safely do
             new_instance = convert_instance(ec2.launch_instances(image_id, instance_options).first)
             # TODO: Rework this to use client_id for name instead of tag

server/views/instances/new.html.haml

@@ -1,27 +1,35 @@
-%h1 New Instance
+%h1 Launch new Instance
 
+%h3{:class => "description"}= @image.description
 %h2= @image.id
-%h3= @image.description
 
-%form{ :action => instances_url, :method => :post }
+%form{ :action => instances_url, :method => :post, :class => :new_instance }
   %input{ :name => :image_id, :type => :hidden, :value => @instance.image_id }/
   %p
     %label
-      Instance Name:
-      %input{ :name => 'name', :size => 30 }/
+      Name:
+    %input{ :name => 'name', :size => 30, :type => :text }/
+  -if driver_has_feature?(:instance_count)
+    %p
+      %label
+        Number of instances:
+      %input{ :type => :text, :value => "1", :name => :instance_count }
   -if driver_has_feature?(:register_to_load_balancer)
     %p
       %label
-        Assign to load balancer:
-        %select{:name => 'load_balancer_id'}
-          %option{:value => ""}
-          - @load_balancers.each do |load_balancer|
-            %option{:value => load_balancer.id} #{load_balancer.id}
+        Load balancer to assign:
+      %select{:name => 'load_balancer_id'}
+        %option
+        - @load_balancers.each do |load_balancer|
+          %option{:value => load_balancer.id} #{load_balancer.id}
   -if driver_has_feature?(:authentication_key)
     %p
       %label
         Instance Keyname:
-        %input{:name => 'keyname', :size => 30 }
+      %select{:name => 'keyname'}
+        %option
+        - @keys.each do |key|
+          %option{ :value => key.id } #{key.id}
   - if !@hardware_profiles.empty?
     %h3 What size machine?
     - for hwp in @hardware_profiles