Show virtual machines on Cluster page

netbox/templates/virtualization/cluster.html

@@ -151,8 +151,25 @@ <h1>{% block title %}{{ cluster }}{% endblock %}</h1>
                 </form>
             {% endif %}
         </div>
+        <div class="panel panel-default">
+            <div class="panel-heading">
+                <strong>Virtual Machines</strong>
+            </div>
+            {% include 'responsive_table.html' with table=virtual_machine_table %}
+            {% if perms.virtualization.change_cluster %}
+                <div class="panel-footer noprint">
+                    <div class="pull-right">
+                        <a href="{% url 'virtualization:cluster_add_virtualmachines' pk=cluster.pk %}?site={{ cluster.site.pk }}" class="btn btn-primary btn-xs">
+                            <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
+                            Add virtual machines
+                        </a>
+                    </div>
+                    <div class="clearfix"></div>
+                </div>
+            {% endif %}
+        </div>
         {% plugin_right_page cluster %}
-	</div>
+    </div>
 </div>
 <div class="row">
     <div class="col-md-12">

netbox/virtualization/forms.py

@@ -276,6 +276,28 @@ class ClusterRemoveDevicesForm(ConfirmationForm):
     )
 
 
+class ClusterAddVirtualMachinesForm(BootstrapMixin, forms.Form):
+    virtualmachines = DynamicModelMultipleChoiceField(
+        queryset=VirtualMachine.objects.all(),
+    )
+
+    class Meta:
+        fields = [
+            'virtualmachines',
+        ]
+
+    def __init__(self, cluster, *args, **kwargs):
+
+        self.cluster = cluster
+
+        super().__init__(*args, **kwargs)
+
+        self.fields['virtualmachines'].choices = []
+
+    def clean(self):
+        super().clean()
+
+
 #
 # Virtual Machines
 #

netbox/virtualization/urls.py

@@ -38,6 +38,7 @@
     path('clusters/<int:pk>/changelog/', ObjectChangeLogView.as_view(), name='cluster_changelog', kwargs={'model': Cluster}),
     path('clusters/<int:pk>/devices/add/', views.ClusterAddDevicesView.as_view(), name='cluster_add_devices'),
     path('clusters/<int:pk>/devices/remove/', views.ClusterRemoveDevicesView.as_view(), name='cluster_remove_devices'),
+    path('clusters/<int:pk>/virtual-machines/add/', views.ClusterAddVirtualMachinesView.as_view(), name='cluster_add_virtualmachines'),
 
     # Virtual machines
     path('virtual-machines/', views.VirtualMachineListView.as_view(), name='virtualmachine_list'),

netbox/virtualization/views.py

@@ -14,6 +14,7 @@
     BulkComponentCreateView, BulkDeleteView, BulkEditView, BulkImportView, BulkRenameView, ComponentCreateView,
     ObjectView, ObjectDeleteView, ObjectEditView, ObjectListView,
 )
+from virtualization.tables import VirtualMachineTable
 from . import filters, forms, tables
 from .models import Cluster, ClusterGroup, ClusterType, VirtualMachine, VMInterface
 
@@ -103,11 +104,18 @@ class ClusterView(ObjectView):
     queryset = Cluster.objects.all()
 
     def get(self, request, pk):
+        virtual_machines = VirtualMachine.objects.restrict(request.user)
+
         self.queryset = self.queryset.prefetch_related(
-            Prefetch('virtual_machines', queryset=VirtualMachine.objects.restrict(request.user))
+            Prefetch('virtual_machines', queryset=virtual_machines)
         )
 
         cluster = get_object_or_404(self.queryset, pk=pk)
+
+        virtual_machine_table = VirtualMachineTable(list(virtual_machines.filter(cluster=cluster)), orderable=False)
+        if request.user.has_perm('virtualization.change_cluster'):
+            virtual_machine_table.columns.show('pk')
+
         devices = Device.objects.restrict(request.user, 'view').filter(cluster=cluster).prefetch_related(
             'site', 'rack', 'tenant', 'device_type__manufacturer'
         )
@@ -118,6 +126,7 @@ def get(self, request, pk):
         return render(request, 'virtualization/cluster.html', {
             'cluster': cluster,
             'device_table': device_table,
+            'virtual_machine_table': virtual_machine_table,
         })
 
 
@@ -232,6 +241,47 @@ def post(self, request, pk):
         })
 
 
+class ClusterAddVirtualMachinesView(ObjectEditView):
+    queryset = Cluster.objects.all()
+    form = forms.ClusterAddVirtualMachinesForm
+    template_name = 'virtualization/cluster_add_virtualmachines.html'
+
+    def get(self, request, pk):
+        cluster = get_object_or_404(self.queryset, pk=pk)
+        form = self.form(cluster, initial=request.GET)
+
+        return render(request, self.template_name, {
+            'cluster': cluster,
+            'form': form,
+            'return_url': reverse('virtualization:cluster', kwargs={'pk': pk}),
+        })
+
+    def post(self, request, pk):
+        cluster = get_object_or_404(self.queryset, pk=pk)
+        form = self.form(cluster, request.POST)
+
+        if form.is_valid():
+
+            virtualmachine_pks = form.cleaned_data['virtualmachines']
+            with transaction.atomic():
+
+                # Assign the selected VirtualMachines to the Cluster
+                for virtualmachine in VirtualMachine.objects.filter(pk__in=virtualmachine_pks):
+                    virtualmachine.cluster = cluster
+                    virtualmachine.save()
+
+            messages.success(request, "Added {} virtual machines to cluster {}".format(
+                len(virtualmachine_pks), cluster
+            ))
+            return redirect(cluster.get_absolute_url())
+
+        return render(request, self.template_name, {
+            'cluster': cluster,
+            'form': form,
+            'return_url': cluster.get_absolute_url(),
+        })
+
+
 #
 # Virtual machines
 #