Added ec2 observer, WIP
diff --git a/planetstack/ec2_observer/deleters/slice_deleter.py b/planetstack/ec2_observer/deleters/slice_deleter.py
new file mode 100644
index 0000000..90b58c3
--- /dev/null
+++ b/planetstack/ec2_observer/deleters/slice_deleter.py
@@ -0,0 +1,19 @@
+from core.models import Slice, SliceDeployments, User
+from observer.deleter import Deleter
+from observer.deleters.slice_deployment_deleter import SliceDeploymentDeleter
+from util.logger import Logger, logging
+
+logger = Logger(level=logging.INFO)
+
+class SliceDeleter(Deleter):
+    model='Slice'
+
+    def call(self, pk):
+        slice = Slice.objects.get(pk=pk)
+        slice_deployment_deleter = SliceDeploymentDeleter()
+        for slice_deployment in SliceDeployments.objects.filter(slice=slice):
+            try:
+                slice_deployment_deleter(slice_deployment.id)
+            except:
+                logger.log_exc("Failed to delete slice_deployment %s" % slice_deployment) 
+        slice.delete()