Logging information messages about instance methods

recircle/instance/views.py

@@ -14,7 +14,9 @@ from template.models import ImageTemplate
 from template.serializers import ImageTemplateModelSerializer
 from authorization.mixins import AuthorizationMixin
 from guardian.shortcuts import get_perms_for_model, assign_perm
+import logging
 
+logger = logging.getLogger(__name__)
 
 authorization = {
     "list": {"filter": ["use_instance"]},
@@ -59,6 +61,7 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
         try:
             return Instance.objects.get(pk=pk)
         except Instance.DoesNotExist:
+            logger.warn(f"Unexistent instance was requested with id: {pk}")
             raise Http404
 
     def list(self, request):
@@ -89,10 +92,15 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
             owner=request.user,
         )
 
+        logger.info(f"New virt. machine instance created by {request.user.id}:"
+                    f"ID: {newInstance.id}")
+
         for perm in get_perms_for_model(Instance):
             print(perm)
             assign_perm(perm, request.user, newInstance)
 
+        logger.info(f"All permission granted to user: {request.user.id} to instance:"
+                    f"{newInstance.id}")
         return Response(InstanceSerializer(newInstance).data, status=status.HTTP_201_CREATED)
 
     def retrieve(self, request, pk):
@@ -113,6 +121,8 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
             instance.change_name(request.data["name"])
         if "description" in request.data:
             instance.change_description(request.data["description"])
+
+        logger.info(f"Instance (ID: {instance.id}) was updated.")
         return Response(InstanceSerializer(instance).data)
 
     def destroy(self, request, pk):
@@ -120,6 +130,7 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
         if not instance:
             return Response(status=status.HTTP_204_NO_CONTENT)
         instance.destroy()
+        logger.info(f"Instance (ID: {instance.id}) was deleted by user: {request.user.id}")
         return Response(status=status.HTTP_204_NO_CONTENT)
 
     @action(detail=True, methods=["post"])
@@ -138,6 +149,8 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
                                                           data["description"],
                                                           instance,
                                                           request.user)
+        logger.info(f"A new template created with id: {new_template.id} from instance:"
+                    f"{instance.id}")
         serializer = ImageTemplateModelSerializer(instance=new_template)
         return Response(serializer.data)
 
@@ -147,6 +160,9 @@ class InstanceViewSet(AuthorizationMixin, ViewSet):
         if not self.has_perms_for_object(request.user, request.data["action"], instance):
             return Response({"error": "No permission to use this action on the VM."},
                             status=status.HTTP_401_UNAUTHORIZED)
+        if "action" in request.data:
+            action = request.data["action"]
+            logger.info(f"Action {action} initiatied in instance: {instance.id}")
         success = instance.execute_common_action(action=request.data["action"])
         return Response(success)