Instances overhaul

computes/models.py

@@ -1,8 +1,10 @@
 from django.db.models import CharField, IntegerField, Model
 from django.utils.functional import cached_property
 from django.utils.translation import ugettext_lazy as _
+from libvirt import virConnect
 
 from vrtManager.connection import connection_manager
+from vrtManager.hostdetails import wvmHostDetails
 
 
 class Compute(Model):
@@ -15,7 +17,45 @@ class Compute(Model):
 
     @cached_property
     def status(self):
-        return connection_manager.host_is_up(self.type, self.hostname)
+        # return connection_manager.host_is_up(self.type, self.hostname)
+        # TODO: looks like socket has problems connecting via VPN
+        if isinstance(self.connection, virConnect):
+            return True
+        else:
+            return self.connection
+
+    @cached_property
+    def connection(self):
+        try:
+            return connection_manager.get_connection(
+                self.hostname,
+                self.login,
+                self.password,
+                self.type,
+            )
+        except Exception as e:
+            return e
+
+    @cached_property
+    def proxy(self):
+        return wvmHostDetails(
+            self.hostname,
+            self.login,
+            self.password,
+            self.type,
+        )
+
+    @cached_property
+    def cpu_count(self):
+        return self.proxy.get_node_info()[3]
+
+    @cached_property
+    def ram_size(self):
+        return self.proxy.get_node_info()[2]
+
+    @cached_property
+    def ram_usage(self):
+        return self.proxy.get_memory_usage()['percent']
 
     def __str__(self):
         return self.name