Update Dockerfile

Dockerfile

@@ -6,6 +6,17 @@ RUN apt-get update && apt-get install -y git && apt-get clean
 USER airflow
 ENV AIRFLOW__WEBSERVER__WEB_SERVER_PORT=7860
 ENV AIRFLOW__CORE__LOAD_EXAMPLES=False
+# 1. Give the webserver 10 minutes to finish DB sync (default is 2 mins)
+ENV AIRFLOW__WEBSERVER__WEB_SERVER_STARTUP_TIMEOUT=600
+
+# 2. Reduce workers to 2 (4 is too many for HF Free Tier RAM)
+ENV AIRFLOW__WEBSERVER__WORKERS=2
+
+# 3. Ensure it's using the right Executor for your external DB
+ENV AIRFLOW__CORE__EXECUTOR=LocalExecutor
+
+# 4. Force the port again just to be safe
+ENV AIRFLOW__WEBSERVER__WEB_SERVER_PORT=7860
 
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt