metadata cache update

circle/dashboard/forms.py

@@ -92,12 +92,15 @@ class VmSaveForm(OperationForm):
                            help_text=_('Human readable name of template.'))
     datastore = forms.ModelChoiceField(queryset=None, initial=0, empty_label=None, 
                     help_text=_('Backing file location'))
+    overlay_path = forms.ModelChoiceField(queryset=None, initial=0, empty_label=None, 
+                    help_text=_('Overlay image dir'))
 
     def __init__(self, *args, **kwargs):
         default = kwargs.pop('default', None)
         clone = kwargs.pop('clone', False)
         super(VmSaveForm, self).__init__(*args, **kwargs)
         self.fields['datastore'].queryset = DataStore.objects.all()
+        self.fields['overlay_path'].queryset = DataStore.objects.all()
         if default:
             self.fields['name'].initial = default
         if clone:
@@ -856,6 +859,10 @@ class VmCreateDiskForm(OperationForm):
         help_text=_('Size of disk to create in bytes or with units '
                     'like MB or GB.'))
     datastore = forms.ModelChoiceField(queryset=None, initial=0, empty_label=None)
+    cache_size = forms.CharField(
+        widget=FileSizeWidget, initial=(1 << 20), label=_('Metadata cache size'),
+        help_text=_('Metadata cache size, '
+                    'like KB, MB'))
 
     def __init__(self, *args, **kwargs):
         default = kwargs.pop('default', None)
@@ -871,6 +878,13 @@ class VmCreateDiskForm(OperationForm):
                                           " GB or MB!"))
         return size_in_bytes
 
+    def clean_cache_size(self):
+        size_in_kbytes = self.cleaned_data.get("cache_size")
+        if not size_in_kbytes.isdigit() and len(size_in_kbytes) > 0:
+            raise forms.ValidationError(_("Invalid format, you can use "
+                                          " KB or MB!"))
+        return int(size_in_kbytes) / 1024
+
 
 class VmDiskExportForm(OperationForm):
     exported_name = forms.CharField(max_length=100, label=_('Filename'))

circle/storage/models.py

@@ -363,7 +363,8 @@ class Disk(TimeStampedModel):
             'size': self.size,
             'base_name': self.base.filename if self.base else None,
             'type': 'snapshot' if self.base else 'normal',
-            'cache_size': self.cache_size
+            'cache_size': self.cache_size,
+            'base_dir':  self.base.datastore.path if self.base else None,
         }
 
     def get_remote_queue_name(self, queue_id='storage', priority=None,

circle/vm/operations.py

@@ -292,12 +292,12 @@ class CreateDiskOperation(InstanceOperation):
     accept_states = ('STOPPED', 'PENDING', 'RUNNING')
     concurrency_check = False
 
-    def _operation(self, user, size, activity, datastore, name=None):
+    def _operation(self, user, size, activity, datastore, name=None, cache_size=1024):
         from storage.models import Disk
 
         if not name:
             name = "new disk"
-        disk = Disk.create(size=size, name=name, datastore=datastore.name, type="qcow2-norm")
+        disk = Disk.create(size=size, name=name, datastore=datastore.name, type="qcow2-norm", cache_size=cache_size)
         disk.full_clean()
         devnums = list(ascii_lowercase)
         for d in self.instance.disks.all():