server_config/hk-01/etc/systemd/system/rpn.service

[Unit]
Description=rpn supertraderfx payment gateway Service
Documentation=man:fail2ban(1)
After=network.target firewalld.service
PartOf=firewalld.service

[Service]
Type=simple
WorkingDirectory=/home/rpn/go
ExecStartPre=/bin/mkdir -p /home/rpn/go/logs
ExecStart=/home/rpn/go/rpn
# if should be logged in systemd journal, use following line or set logtarget to sysout in fail2ban.local
# ExecStart=/usr/bin/fail2ban-server -xf --logtarget=sysout start
PIDFile=/var/run/rpn.pid
Restart=on-failure
RestartPreventExitStatus=0 255

[Install]
WantedBy=multi-user.target