Add ServiceInstance to admin

src/servala/core/admin.py

@@ -13,6 +13,7 @@ from servala.core.models import (
     Service,
     ServiceCategory,
     ServiceDefinition,
+    ServiceInstance,
     ServiceOffering,
     ServiceOfferingControlPlane,
     User,
@@ -220,6 +221,41 @@ class ServiceOfferingControlPlaneAdmin(admin.ModelAdmin):
     autocomplete_fields = ("service_offering", "control_plane", "service_definition")
 
 
+@admin.register(ServiceInstance)
+class ServiceInstanceAdmin(admin.ModelAdmin):
+    list_display = ("name", "organization", "context", "created_by", "is_deleted")
+    list_filter = ("organization", "context", "is_deleted")
+    search_fields = (
+        "name",
+        "organization__name",
+        "context__service_offering__service__name",
+    )
+    readonly_fields = ("name", "organization", "context")
+    autocomplete_fields = ("organization", "context")
+
+    def get_readonly_fields(self, request, obj=None):
+        if obj:  # If this is an edit (not a new instance)
+            return self.readonly_fields
+        return []
+
+    fieldsets = (
+        (
+            None,
+            {
+                "fields": (
+                    "name",
+                    "organization",
+                    "context",
+                    "created_by",
+                    "is_deleted",
+                    "deleted_at",
+                    "deleted_by",
+                )
+            },
+        ),
+    )
+
+
 @admin.register(ServiceOffering)
 class ServiceOfferingAdmin(admin.ModelAdmin):
     list_display = ("id", "service", "provider")