Merge branch 'feature-node-info' into 'master'

Add feature: Node Info

Requires vmdriver@93d05776f

circle/dashboard/templates/dashboard/node-detail/resources.html

@@ -3,9 +3,9 @@
 
   <dl class="dl-horizontal">
     <dt>{% trans "Node name" %}:</dt><dd>{{ node.name }}</dd>
-    <dt>{% trans "CPU cores" %}:</dt><dd>{{ node.num_cores }}</dd>
-    <dt>{% trans "RAM size" %}:</dt> <dd>{% widthratio node.ram_size 1048576 1 %} MB</dd>
-    <dt>{% trans "Architecture" %}:</dt><dd>{{ node.arch }}</dd>
+    <dt>{% trans "CPU cores" %}:</dt><dd>{{ node.info.core_num }}</dd>
+    <dt>{% trans "RAM size" %}:</dt> <dd>{% widthratio node.info.ram_size 1048576 1 %} MB</dd>
+    <dt>{% trans "Architecture" %}:</dt><dd>{{ node.info.architecture }}</dd>
     <dt>{% trans "Host IP" %}:</dt><dd>{{ node.host.ipv4 }}</dd>
     <dt>{% trans "Enabled" %}:</dt><dd>{{ node.enabled }}</dd>
     <dt>{% trans "Host online" %}:</dt><dd> {{ node.online }}</dd>

circle/vm/models/node.py

@@ -85,13 +85,13 @@ class Node(TimeStampedModel):
 
     @node_available
     @method_cache(300)
-    def get_num_cores(self):
-        """Number of CPU threads available to the virtual machines.
-        """
-
-        return self.remote_query(vm_tasks.get_core_num, default=0)
+    def get_info(self):
+        return self.remote_query(vm_tasks.get_info,
+                                 default={'cpu': '',
+                                          'ram': '0',
+                                          'arch': ''})
 
-    num_cores = property(get_num_cores)
+    info = property(get_info)
 
     STATES = {False: {False: ('OFFLINE', _('offline')),
                       True: ('DISABLED', _('disabled'))},
@@ -144,15 +144,6 @@ class Node(TimeStampedModel):
             self.get_num_cores(invalidate_cache=True)
             self.get_ram_size(invalidate_cache=True)
 
-    @node_available
-    @method_cache(300)
-    def get_ram_size(self):
-        """Bytes of total memory in the node.
-        """
-        return self.remote_query(vm_tasks.get_ram_size, default=0)
-
-    ram_size = property(get_ram_size)
-
     @property
     @node_available
     def ram_size_with_overcommit(self):

circle/vm/tasks/vm_tasks.py

@@ -119,11 +119,21 @@ def get_core_num(params):
     pass
 
 
+@celery.task(name='vmdriver.get_architecture')
+def get_architecture():
+    pass
+
+
 @celery.task(name='vmdriver.get_ram_size')
 def get_ram_size(params):
     pass
 
 
+@celery.task(name='vmdriver.get_info')
+def get_info(params):
+    pass
+
+
 @celery.task(name='vmdriver.get_node_metrics')
 def get_node_metrics(params):
     pass