template validation

devops-service/db/mongo/models/stack_template/stack_template_base.rb

@@ -1,16 +1,21 @@
 require 'tempfile'
 require 'securerandom'
+require "db/mongo/models/model_with_provider"
 
 module Devops
   module Model
     class StackTemplateBase < MongoModel
 
+      include ModelWithProvider
+
       attr_accessor :id, :template_body, :provider
 
       types id: {type: String, empty: false},
             provider: {type: String, empty: false},
             template_body: {type: String, empty: false}
 
+      set_validators ::Validators::StackTemplate::TemplateContent
+
       def initialize(attrs)
         self.id = attrs['id']
         self.template_body = attrs['template_body']

devops-service/db/validators/stack_template/template_content.rb

@@ -0,0 +1,15 @@
+module Validators
+  class StackTemplate::TemplateContent < Base
+
+    def valid?
+      @model.provider_instance.validate_template(@model.template_body)
+      true
+    end
+
+    def message
+      "Invalid groups '#{@invalid_groups.join("', '")}'."
+    end
+
+  end
+end
+

devops-service/providers/ec2.rb

@@ -237,6 +237,11 @@ module Provider
       end
     end
 
+    def validate_stack_template template
+      r = cloud_formation.validate_template({'TemplateBody' => template})
+      pp r.body
+    end
+
     def delete_stack(stack)
       cloud_formation.delete_stack(stack.name)
     end

devops-service/providers/openstack.rb

@@ -224,6 +224,11 @@ module Provider
       end
     end
 
+    def validate_stack_template template
+      r = orchestration.validate_template({'template' => template})
+      pp r.body
+    end
+
     def delete_stack(stack)
       orchestration.delete_stack(Fog::Orchestration::OpenStack::Stack.new({'id' => stack.id, 'stack_name' => stack.name}))
     end