Fix worker crash: remove broken gunicorn post_fork hook

Co-authored-by: Cursor <cursoragent@cursor.com>

app/__init__.py

@@ -60,16 +60,7 @@ def create_app(setup_database=True):
 
     register_cli(app)
 
-    @app.context_processor
+    # Ensure models are registered even when DB setup runs in init_db.py.
-    def inject_banners():
-        from app.banner_service import get_banners_by_position
-
-        try:
-            return {"site_banners": get_banners_by_position()}
-        except Exception:
-            return {"site_banners": {}}
-
-    if setup_database:
     with app.app_context():
         from app.models import (  # noqa: F401
             AdBanner,
@@ -83,6 +74,17 @@ def create_app(setup_database=True):
             UserGroup,
         )
 
+    @app.context_processor
+    def inject_banners():
+        from app.banner_service import get_banners_by_position
+
+        try:
+            return {"site_banners": get_banners_by_position()}
+        except Exception:
+            return {"site_banners": {}}
+
+    if setup_database:
+        with app.app_context():
             db.create_all()
 
             if os.getenv("SKIP_DB_INIT") != "1":

app/routes.py

@@ -2,6 +2,7 @@ import os
 
 from flask import (
     Blueprint,
+    Response,
     abort,
     current_app,
     flash,
@@ -21,6 +22,7 @@ from app.models import Folder, Photo
 from app.settings_service import get_settings
 from app.storage_service import delete_photo_file, get_photo_stream
 from app.upload_service import process_uploads
+from sqlalchemy import text
 
 bp = Blueprint("main", __name__)
 
@@ -28,10 +30,12 @@ bp = Blueprint("main", __name__)
 @bp.route("/health")
 def health():
     try:
-        db.session.execute(db.text("SELECT 1"))
+        db.session.execute(text("SELECT 1"))
-        return {"status": "ok"}, 200
+        db.session.remove()
+        return Response("ok\n", mimetype="text/plain")
     except Exception as exc:
-        return {"status": "error", "detail": str(exc)}, 503
+        db.session.remove()
+        return Response(f"error: {exc}\n", status=503, mimetype="text/plain")
 
 
 @bp.route("/")

gunicorn.conf.py

@@ -3,10 +3,4 @@ workers = 2
 timeout = 120
 accesslog = "-"
 errorlog = "-"
-capture_output = True
+loglevel = "info"
-
-
-def post_fork(server, worker):
-    from app import db
-
-    db.engine.dispose()

init_db.py

@@ -1,3 +1,10 @@
-from app import create_app
+import sys
 
-create_app(setup_database=True)
+try:
+    from app import create_app
+
+    create_app(setup_database=True)
+    print("Database init OK", flush=True)
+except Exception as exc:
+    print(f"Database init FAILED: {exc}", file=sys.stderr, flush=True)
+    raise