FreeBSD style daemon wrapper around relx start script

service

#!/bin/sh

# PROVIDE: service_name
# REQUIRE: LOGIN ntpd
# KEYWORD: shutdown

. /etc/rc.subr

name=service_name
rcvar=${name}_enable

start_cmd="${name}_start"
stop_cmd="${name}_stop"
stop_postcmd="kill_epmd"
attach_cmd="${name}_attach"
extra_commands="attach"

load_rc_config $name

: ${service_user:=username}
: ${service_enable:=no}

erts_bin=/path/to/erts-*/bin
relx_script=/path/to/bin/${name}

service_name() {
  C="$relx_script $*"
  su -m $service_user -c "$C"
}

service_start() {
  service start
}

service_stop() {
  service stop
}

service_attach() {
  service attach
}

run_rc_command "$1"