Remove hidden runtime environment overrides

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

backend/Dockerfile

@@ -4,7 +4,6 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
     UV_LINK_MODE=copy \
     DJANGO_SETTINGS_MODULE=asp.settings \
-    ASP_CUSTOM_DIR=/app/custom \
     PYTHONPATH=/opt/asp/custom-packages:/app/custom
 
 WORKDIR /app

backend/apps/settings/runtime_config.py

@@ -92,20 +92,10 @@ def get_runtime_config():
 
 
 def get_prompt_language():
-    from django.conf import settings
-
-    override = getattr(settings, "AGENTIC_PROMPT_LANGUAGE", None)
-    if override:
-        return str(override).strip().lower()
     return get_runtime_config()["prompt_language"]
 
 
 def get_stream_maxlen():
-    from django.conf import settings
-
-    override = getattr(settings, "WEBHOOK_REDIS_STREAM_MAXLEN", None)
-    if override is not None:
-        return int(override)
     try:
         return get_runtime_config()["stream_maxlen"]
     except Exception as exc:

backend/apps/webhook/tests.py

@@ -1,9 +1,11 @@
 from unittest.mock import patch
 
-from django.test import SimpleTestCase, override_settings
+from django.test import SimpleTestCase, TestCase
 from django.urls import Resolver404, resolve
 from rest_framework.test import APIClient
 
+from apps.settings.models import RuntimeConfig
+from apps.settings.runtime_config import invalidate
 from apps.webhook.schemas import WebhookResult
 from apps.webhook.service import (
     WebhookRedisError,
@@ -26,9 +28,15 @@ class FailingRedisClient:
         raise RuntimeError("redis unavailable")
 
 
-class WebhookServiceTests(SimpleTestCase):
-    @override_settings(WEBHOOK_REDIS_STREAM_MAXLEN=123)
+class WebhookServiceTests(TestCase):
+    def set_stream_maxlen(self, value):
+        config = RuntimeConfig.get_current()
+        config.stream_maxlen = value
+        config.save(update_fields=["stream_maxlen", "updated_at"])
+        invalidate("runtime")
+
     def test_handle_splunk_webhook_writes_result_to_search_stream(self):
+        self.set_stream_maxlen(123)
         redis_client = FakeRedisClient()
 
         result = handle_splunk_webhook(
@@ -49,8 +57,8 @@ class WebhookServiceTests(SimpleTestCase):
         with self.assertRaisesMessage(ValueError, "search_name is required."):
             handle_splunk_webhook({"search_name": " ", "result": {}}, redis_client=FakeRedisClient())
 
-    @override_settings(WEBHOOK_REDIS_STREAM_MAXLEN=456)
     def test_handle_kibana_webhook_writes_normalized_sources(self):
+        self.set_stream_maxlen(456)
         redis_client = FakeRedisClient()
 
         result = handle_kibana_webhook(

backend/asp/settings.py

@@ -12,7 +12,7 @@ from apps.common.logging import (
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 load_dotenv(BASE_DIR / ".env")
-CUSTOM_DIR = Path(os.environ.get("ASP_CUSTOM_DIR", BASE_DIR / "custom"))
+CUSTOM_DIR = BASE_DIR / "custom"
 
 SECRET_KEY = os.environ.get("DJANGO_SECRET_KEY", "dev-secret-key-change-in-prod-32-byte-minimum")
 DEBUG = os.environ.get("DJANGO_DEBUG", "false").lower() == "true"

deploy/asp-compose/compose.yaml

@@ -3,7 +3,6 @@ x-asp-backend: &asp-backend
   env_file:
     - .env
   environment:
-    ASP_CUSTOM_DIR: /app/custom
     PYTHONPATH: /opt/asp/custom-packages:/app/custom
   volumes:
     - ./custom:/app/custom