[Unit]
 Description=Automatic Update
 After=network-online.target 

[Service]
 Type=simple
 ExecStart=/bin/bash -c '/usr/bin/dnf makecache -q && /usr/bin/dnf upgrade --downloadonly -q'
 TimeoutStopSec=180
 KillMode=process
 KillSignal=SIGINT

[Install]
 WantedBy=multi-user.target