Added ec2 observer, WIP
diff --git a/planetstack/ec2_observer/deleters/sliver_deleter.py b/planetstack/ec2_observer/deleters/sliver_deleter.py
new file mode 100644
index 0000000..097f0f7
--- /dev/null
+++ b/planetstack/ec2_observer/deleters/sliver_deleter.py
@@ -0,0 +1,14 @@
+from core.models import Sliver, SliceDeployments
+from observer.deleter import Deleter
+
+class SliverDeleter(Deleter):
+    model='Sliver'
+
+    def call(self, pk):
+        sliver = Sliver.objects.get(pk=pk)
+        if sliver.instance_id:
+            driver = self.driver.client_driver(caller=sliver.creator, 
+                                               tenant=sliver.slice.name,
+                                               deployment=sliver.deploymentNetwork.name)
+            driver.destroy_instance(sliver.instance_id)
+        sliver.delete()