Improve display of kubernetes errors

src/servala/core/models/service.py

@@ -1,3 +1,5 @@
+import json
+
 import kubernetes
 import urlman
 from django.conf import settings
@@ -506,32 +508,45 @@ class ServiceInstance(ServalaModelMixin, models.Model):
                 )
             )
 
-        group = context.service_definition.api_definition["group"]
-        version = context.service_definition.api_definition["version"]
-        kind = context.service_definition.api_definition["kind"]
-        create_data = {
-            "apiVersion": f"{group}/{version}",
-            "kind": kind,
-            "metadata": {
-                "name": name,
-                "namespace": organization.namespace,
-            },
-            "spec": spec_data or {},
-        }
-        if label := context.control_plane.required_label:
-            create_data["metadata"]["labels"] = {settings.DEFAULT_LABEL_KEY: label}
-        api_instance = client.CustomObjectsApi(
-            context.control_plane.get_kubernetes_client()
-        )
-        plural = kind.lower()
-        if not plural.endswith("s"):
-            plural = f"{plural}s"
+        try:
+            group = context.service_definition.api_definition["group"]
+            version = context.service_definition.api_definition["version"]
+            kind = context.service_definition.api_definition["kind"]
+            create_data = {
+                "apiVersion": f"{group}/{version}",
+                "kind": kind,
+                "metadata": {
+                    "name": name,
+                    "namespace": organization.namespace,
+                },
+                "spec": spec_data or {},
+            }
+            if label := context.control_plane.required_label:
+                create_data["metadata"]["labels"] = [
+                    {settings.DEFAULT_LABEL_KEY: label}
+                ]
+            api_instance = client.CustomObjectsApi(
+                context.control_plane.get_kubernetes_client()
+            )
+            plural = kind.lower()
+            if not plural.endswith("s"):
+                plural = f"{plural}s"
 
-        api_instance.create_namespaced_custom_object(
-            group=group,
-            version=version,
-            namespace=organization.namespace,
-            plural=plural,
-            body=create_data,
-        )
+            api_instance.create_namespaced_custom_object(
+                group=group,
+                version=version,
+                namespace=organization.namespace,
+                plural=plural,
+                body=create_data,
+            )
+        except Exception as e:
+            instance.delete()
+            if isinstance(e, ApiException):
+                try:
+                    error_body = json.loads(e.body)
+                    reason = error_body.get("message", str(e))
+                    raise ValidationError(_("Kubernetes API error: {}").format(reason))
+                except (ValueError, TypeError):
+                    raise ValidationError(_("Kubernetes API error: {}").format(str(e)))
+            raise ValidationError(_("Error creating instance: {}").format(str(e)))
         return instance

src/servala/frontend/views/service.py

@@ -1,4 +1,5 @@
 from django.contrib import messages
+from django.core.exceptions import ValidationError
 from django.shortcuts import redirect
 from django.utils.functional import cached_property
 from django.views.generic import DetailView, ListView
@@ -134,9 +135,10 @@ class ServiceOfferingDetailView(OrganizationViewMixin, HtmxViewMixin, DetailView
                     spec_data=form.get_nested_data().get("spec"),
                 )
                 return redirect(service_instance.urls.base)
+            except ValidationError as e:
+                messages.error(self.request, e.message or str(e))
             except Exception as e:
-                error_message = getattr(e, "message", None) or str(e)
-                messages.error(self.request, error_message)
+                messages.error(self.request, str(e))
 
         # If the form is not valid or if the service creation failed, we render it again
         context["service_form"] = form