dashboard: Display real graphs for vms #44

circle/dashboard/templates/dashboard/vm-detail/home.html

@@ -37,9 +37,8 @@
     </div><!-- id:vm-details-tags -->
   </div>
   <div class="col-md-8">
-<img src="/static/grafikon.png" style="width:45%"/>
-<img src="/static/grafikon.png" style="width:45%"/>
-<img src="/static/grafikon.png" style="width:45%"/>
-<img src="/static/grafikon.png" style="width:45%"/>
+    <img src="{% url "dashboard.views.vm-graph" instance.pk "cpu" "6h" %}" style="width:100%"/>
+    <img src="{% url "dashboard.views.vm-graph" instance.pk "memory" "6h" %}" style="width:100%"/>
+    <img src="{% url "dashboard.views.vm-graph" instance.pk "network" "6h" %}" style="width:100%"/>
   </div>
 </div>

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

@@ -57,7 +57,7 @@
     </div>
     {% for d in instance.disks.all %}
       <h4 class="list-group-item-heading dashboard-vm-details-network-h3">
-        <i class="icon-file"></i> {{ d.name }} - {{ d.size|filesize }}
+        <i class="icon-file"></i> {{ d.name }} (#{{ d.id }}) - {{ d.size|filesize }}
       </h4>
     {% endfor %}
   </div>

circle/dashboard/urls.py

@@ -7,6 +7,7 @@ from .views import (
     TransferOwnershipView, TransferOwnershipConfirmView, NodeDelete,
     TemplateList, LeaseDetail, NodeCreate, LeaseCreate, TemplateCreate,
     FavouriteView, NodeStatus, GroupList, TemplateDelete, LeaseDelete,
+    VmGraphView,
 )
 
 urlpatterns = patterns(
@@ -57,4 +58,8 @@ urlpatterns = patterns(
         name='dashboard.views.favourite'),
     url(r'^group/list/$', GroupList.as_view(),
         name='dashboard.views.group-list'),
+    url((r'^vm/(?P<pk>\d+)/graph/(?P<metric>cpu|memory|network)/'
+         r'(?P<time>[0-9]+[hdwy])$'),
+        VmGraphView.as_view(),
+        name='dashboard.views.vm-graph'),
 )

circle/dashboard/views.py

@@ -1224,3 +1224,45 @@ class TransferOwnershipConfirmView(LoginRequiredMixin, View):
                          unicode(user), user.pk, new_owner, key)
             raise PermissionDenied()
         return (instance, new_owner)
+
+
+class VmGraphView(LoginRequiredMixin, View):
+    def get(self, request, pk, metric, time, *args, **kwargs):
+        from urllib import urlencode
+        import urllib2
+
+        if metric not in ['cpu', 'memory', 'network']:
+            raise SuspiciousOperation()
+        try:
+            instance = Instance.objects.get(id=pk)
+        except Instance.DoesNotExist:
+            raise Http404()
+        if not instance.has_level(request.user, 'user'):
+            raise PermissionDenied()
+
+        prefix = 'vm.%s' % instance.vm_name
+        if metric == 'cpu':
+            target = ('cactiStyle(alias(derivative(%s.cpu.usage),'
+                      '"cpu usage (%%)"))') % prefix
+        elif metric == 'memory':
+            target = ('cactiStyle(alias(%s.memory.usage,'
+                      '"memory usage (%%)"))') % prefix
+        elif metric == 'network':
+            target = ('cactiStyle(aliasByMetric('
+                      'derivative(%s.network.bytes_*)))') % prefix
+        else:
+            raise SuspiciousOperation()
+
+        title = '%s (%s) - %s' % (instance.name, instance.vm_name, metric)
+
+        params = urlencode({'target': target,
+                            'from': '-%s' % time,
+                            'title': title.encode('UTF-8')})
+        url = ('http://%s:%s/render/?width=500&height=200&%s'
+               % (getenv("GRAPHITE_HOST"),
+                  getenv("GRAPHITE_PORT"),
+                  params))
+        print url
+        response = urllib2.urlopen(urllib2.Request(url))
+        return HttpResponse(response.read(), mimetype="image/png")
+        print pk, metric