我们想要自动化该实用程序 - “Setup ambari-server” 该实用程序询问 4 个默认问题，并且所有答案都应该是默认的（否）
如何使用expect脚本来自动化这个实用程序？
ambari-server setup
Using python /usr/bin/python
Setup ambari-server
Checking SELinux...
SELinux status is 'disabled'
Ambari-server daemon is configured to run under user 'ambari'. Change this setting [y/n] (n)?
Adjusting ambari-server permissions and ownership...
Checking firewall status...
Checking JDK...
Do you want to change Oracle JDK [y/n] (n)?
Checking GPL software agreement...
GPL License for LZO: https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
Enable Ambari Server to download and install GPL Licensed LZO packages [y/n] (n)?
Completing setup...
Configuring database...
Enter advanced database configuration [y/n] (n)?
Configuring database...
Default properties detected. Using built-in database.
Configuring ambari database...
Checking PostgreSQL...
Configuring local database...
Configuring PostgreSQL...
Backup for pg_hba found, reconfiguration not required
Creating schema and user...
done.
Creating tables...
done.
Extracting system views...
............
Adjusting ambari-server permissions and ownership...
Ambari Server 'setup' completed successfully.