[openstack|identity] Update Fog to Accomodate Tenant Deletion Workaround

Workflow

Signed-off-by: Nelvin Driz <nelvindriz@live.com>

lib/fog/openstack/identity.rb

@@ -38,6 +38,7 @@ module Fog
       request :get_user_by_id
       request :get_user_by_name
       request :add_user_to_tenant
+      request :remove_user_from_tenant
 
       request :list_endpoints_for_token
       request :list_roles_for_user_on_tenant

lib/fog/openstack/models/identity/tenant.rb

@@ -20,6 +20,11 @@ module Fog
             :user   => user)
         end
 
+        def users
+          requires :id
+          connection.users(:tenant => self)
+        end
+
         def destroy
           requires :id
           connection.delete_tenant(self.id)

lib/fog/openstack/models/identity/users.rb

@@ -7,8 +7,11 @@ module Fog
       class Users < Fog::Collection
         model Fog::Identity::OpenStack::User
 
+        attribute :tenant
+
         def all
-          load(connection.list_users.body['users'])
+          tenant_id = tenant.id || nil
+          load(connection.list_users(tenant_id).body['users'])
         end
 
         def find_by_id(id)

lib/fog/openstack/requests/identity/delete_tenant.rb

@@ -4,7 +4,7 @@ module Fog
       class Real
         def delete_tenant(id)
           request(
-            :expects => [200],
+            :expects => [200, 204],
             :method  => 'DELETE',
             :path    => "tenants/#{id}"
           )

lib/fog/openstack/requests/identity/list_users.rb

@@ -2,17 +2,18 @@ module Fog
   module Identity
     class OpenStack
       class Real
-        def list_users
+        def list_users(tenant_id = nil)
+          path = tenant_id ? "tenants/#{tenant_id}/users" : 'users'
           request(
             :expects => [200, 204],
             :method  => 'GET',
-            :path    => 'users'
+            :path    => path
           )
         end
       end # class Real
 
       class Mock
-        def list_users
+        def list_users(tenant_id = nil)
           response = Excon::Response.new
           response.status = 200
           response.body = { 'users' => self.data[:users].values }

lib/fog/openstack/requests/identity/remove_user_from_tenant.rb

@@ -0,0 +1,20 @@
+module Fog
+  module Identity
+    class OpenStack
+      class Real
+        def remove_user_from_tenant(tenant_id, user_id, role_id)
+          request(
+            :expects => [200, 204],
+            :method  => 'DELETE',
+            :path    => "/tenants/#{tenant_id}/users/#{user_id}/roles/OS-KSADM/#{role_id}"
+          )
+        end
+      end # class Real
+
+      class Mock
+        def remove_user_from_tenant(tenant_id, user_id, role_id)
+        end # def remove_user_from_tenant
+      end # class Mock
+    end # class OpenStack
+  end # module Identity
+end