diff --git a/web/Dockerfile b/web/Dockerfile
index b3924bf..0aa46e0 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -13,32 +13,33 @@ COPY . .
 
 EXPOSE 5000
 
-# ── Runtime-Umgebungsvariablen (werden von Coolify überschrieben) ──────────────
-# Flask
+# ── Umgebungsvariablen (werden von Coolify gesetzt) ────────────────────────────
 ENV PYTHONUNBUFFERED=1
 ENV FLASK_APP=app.py
-ENV SECRET_KEY=""
-ENV HOST="0.0.0.0"
-ENV PORT="5000"
-ENV DEBUG="false"
+
+# Flask
+ENV SECRET_KEY=$SECRET_KEY
+ENV HOST=$HOST
+ENV PORT=$PORT
+ENV DEBUG=$DEBUG
 
 # Panel-Datenbank (Benutzer / Gruppen)
-ENV PANEL_DB_HOST=""
-ENV PANEL_DB_PORT="3306"
-ENV PANEL_DB_USER=""
-ENV PANEL_DB_PASSWORD=""
-ENV PANEL_DB_NAME="mclogger_panel"
+ENV PANEL_DB_HOST=$PANEL_DB_HOST
+ENV PANEL_DB_PORT=$PANEL_DB_PORT
+ENV PANEL_DB_USER=$PANEL_DB_USER
+ENV PANEL_DB_PASSWORD=$PANEL_DB_PASSWORD
+ENV PANEL_DB_NAME=$PANEL_DB_NAME
 
 # Credentials-Datenbank (verschlüsselte MC-DB-Zugangsdaten)
-ENV CREDS_DB_HOST=""
-ENV CREDS_DB_PORT="3306"
-ENV CREDS_DB_USER=""
-ENV CREDS_DB_PASSWORD=""
-ENV CREDS_DB_NAME="mclogger_creds"
+ENV CREDS_DB_HOST=$CREDS_DB_HOST
+ENV CREDS_DB_PORT=$CREDS_DB_PORT
+ENV CREDS_DB_USER=$CREDS_DB_USER
+ENV CREDS_DB_PASSWORD=$CREDS_DB_PASSWORD
+ENV CREDS_DB_NAME=$CREDS_DB_NAME
 
 # Sicherheit
-ENV FERNET_KEY=""
-ENV PASSWORD_PEPPER=""
+ENV FERNET_KEY=$FERNET_KEY
+ENV PASSWORD_PEPPER=$PASSWORD_PEPPER
 
 # Non-root user
 RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app