# /etc/systemd/system/rx3-network.service
[Unit]
Description=Rx3 Network Service
Documentation=man:systemd.service(5)
After=network-online.target
Wants=network-online.target           # guarantees wait-online is pulled in
Before=docker.service                 # run *first*, because Docker needs the bridges

[Service]
Type=oneshot                          # the script runs and exits
ExecStart=/usr/local/sbin/rx3_net_adm start
ExecStartPost=/usr/local/sbin/rx3_net_adm status
ExecStop=/usr/local/sbin/rx3_net_adm stop
ExecStopPost=/usr/local/sbin/rx3_net_adm status
ExecReload=/usr/local/sbin/rx3_net_adm restart
RemainAfterExit=yes                   # keeps the unit in “active” state
TimeoutStartSec=30s                   # tweak to taste
TimeoutStopSec=15s                    # idem

[Install]
WantedBy=multi-user.target