Update Dockerfile

Dockerfile

@@ -27,8 +27,14 @@ RUN pip install --no-cache-dir -r requirements.txt
 
 ENV FLASK_APP=superset
 
-# Create an admin user
-RUN superset fab create-admin 
+# Create an admin user (non-interactive mode)
+RUN superset fab create-admin --app superset \
+    --username admin \
+    --firstname Admin \
+    --lastname User \
+    --email [email protected] \
+    --password admin \
+    -f
 
 # Initialize the database
 RUN superset db upgrade