Creating last_scan_reports table

it belongs to an isomorphic "resource"

db/migrate/20170925155201_create_scan_result.rb

@@ -0,0 +1,10 @@
+class CreateScanResult < ActiveRecord::Migration[5.0]
+  def change
+    create_table :scan_results do |t|
+      t.string :scan_status
+      t.string :scan_result_message
+      t.string :scan_type
+      t.belongs_to :resource, :polymorphic => true, :type => :bigint
+    end
+  end
+end

db/schema.yml

@@ -747,6 +747,12 @@ container_images:
 - old_ems_id
 - deleted_on
 - type
+scan_results:
+- scan_status
+- scan_result_message
+- scan_type
+- resource_type
+- resource_id
 container_label_tag_mappings:
 - id
 - labeled_resource_type