Swap and ephemeral fields should be optional

Such as in Nova CLI, during flavor create/update the
swap and ephemeral fields should be optional.
If Nova receive an empty value in swap or ephemeral
field sets it to "0"

Change-Id: I896e4fa842a1cf6213f564d8890931a0818b657a
Closes-Bug: #1480343

openstack_dashboard/dashboards/admin/flavors/tests.py

@@ -257,6 +257,32 @@ class CreateFlavorWorkflowTests(BaseFlavorWorkflowTests):
         self.assertFormErrors(res)
         self.assertContains(res, "field is required")
 
+    @test.create_stubs({api.keystone: ('tenant_list',),
+                        api.nova: ('flavor_list',)})
+    def test_create_flavor_missing_swap_and_ephemeral_fields(self):
+        flavor = self.flavors.first()
+        projects = self.tenants.list()
+
+        # init
+        api.keystone.tenant_list(IsA(http.HttpRequest)).AndReturn([projects,
+                                                                   False])
+
+        # handle
+        api.nova.flavor_list(IsA(http.HttpRequest), None) \
+            .AndReturn(self.flavors.list())
+        self.mox.ReplayAll()
+
+        workflow_data = self._get_workflow_data(flavor)
+        # Swap field empty
+        workflow_data['swap'] = None
+        # Ephemeral field empty
+        workflow_data['eph'] = None
+
+        url = reverse(constants.FLAVORS_CREATE_URL)
+        res = self.client.post(url, workflow_data)
+
+        self.assertFormErrors(res)
+
 
 class UpdateFlavorWorkflowTests(BaseFlavorWorkflowTests):
     @test.create_stubs({api.nova: ('flavor_get',

openstack_dashboard/dashboards/admin/flavors/workflows.py

@@ -50,8 +50,12 @@ class CreateFlavorInfoAction(workflows.Action):
     disk_gb = forms.IntegerField(label=_("Root Disk (GB)"),
                                  min_value=0)
     eph_gb = forms.IntegerField(label=_("Ephemeral Disk (GB)"),
+                                required=False,
+                                initial=0,
                                 min_value=0)
     swap_mb = forms.IntegerField(label=_("Swap Disk (MB)"),
+                                 required=False,
+                                 initial=0,
                                  min_value=0)
 
     class Meta(object):
@@ -188,6 +192,8 @@ class CreateFlavor(workflows.Workflow):
 
     def handle(self, request, data):
         flavor_id = data.get('flavor_id') or 'auto'
+        swap = data.get('swap_mb') or 0
+        ephemeral = data.get('eph_gb') or 0
         flavor_access = data['flavor_access']
         is_public = not flavor_access
 
@@ -198,8 +204,8 @@ class CreateFlavor(workflows.Workflow):
                                                  memory=data['memory_mb'],
                                                  vcpu=data['vcpus'],
                                                  disk=data['disk_gb'],
-                                                 ephemeral=data['eph_gb'],
+                                                 ephemeral=ephemeral,
-                                                 swap=data['swap_mb'],
+                                                 swap=swap,
                                                  flavorid=flavor_id,
                                                  is_public=is_public)
         except Exception: