analyze performance upgrade

docker/entrypoint-backend.sh

@@ -1,7 +1,8 @@
 #!/bin/sh
 set -eu
 
-echo "Starting IoT PreTester 4.6 Demo backend"
+echo "Starting IoT PreTester 4.6 Demo backend (LOG_LEVEL=${LOG_LEVEL:-info})"
+echo "tshark: $(tshark -v 2>/dev/null | head -n 1 || echo 'NOT FOUND')"
 
 mkdir -p /app/data /app/files/uploads /app/logs /app/django_project/staticfiles
 cd /app/django_project
@@ -32,14 +33,29 @@ user.save()
 print("Demo administrator created" if created else "Demo administrator synchronized")
 PY
 
+# A restart loses in-flight background analyses. Without this the frontend
+# would poll a capture that is stuck in "analyzing" forever.
+python manage.py shell <<'PY'
+from IoTAnalyzer.models import File
+
+stale = File.objects.filter(status__in=["analyzing", "pending"])
+count = stale.count()
+if count:
+    stale.update(status="analysis_failed")
+print(f"Reset {count} interrupted capture analyses")
+PY
+
 if [ "${INIT_DATABASE:-true}" = "true" ]; then
     python create_models.py
 fi
 
+# Errors and application logs go to stdout/stderr so `docker compose logs`
+# shows them; /app/logs keeps rotating copies (backend.log, access.log).
 exec gunicorn IoTPreTester.wsgi:application \
     --bind 0.0.0.0:8000 \
     --workers "${GUNICORN_WORKERS:-4}" \
     --timeout "${GUNICORN_TIMEOUT:-120}" \
     --access-logfile /app/logs/access.log \
-    --error-logfile /app/logs/error.log \
+    --error-logfile - \
+    --capture-output \
     --log-level "${LOG_LEVEL:-info}"