bind_exporter.in

#!/bin/sh

# PROVIDE: bind_exporter
# REQUIRE: LOGIN
# KEYWORD: shutdown
#
# Add the following lines to /etc/rc.conf.local or /etc/rc.conf
# to enable this service:
#
# bind_exporter_enable (bool):          Set to NO by default.
#               Set it to YES to enable bind_exporter.
# bind_exporter_user (string):          Set user that bind_exporter will run under
#               Default is "nobody".
# bind_exporter_group (string):         Set group that bind_exporter will run under
#               Default is "nobody".
# bind_exporter_args (string):          Set extra arguments to pass to bind_exporter
#               Default is "".
# bind_exporter_listen_address (string):Set ip:port that bind_exporter will listen on
#               Default is ":9119".
# bind_exporter_stats_url (string):     Set URL where BIND is serving statistics
#               Default is "http://localhost:8053/".
# bind_exporter_named_pidfile (path):   Set path to named's pidfile
#               Default is "/var/run/named/pid".

. /etc/rc.subr

name=bind_exporter
desc="Prometheus exporter for BIND"
rcvar=bind_exporter_enable

load_rc_config $name

: ${bind_exporter_enable:="NO"}
: ${bind_exporter_user:="nobody"}
: ${bind_exporter_group:="nobody"}
: ${bind_exporter_args:=""}
: ${bind_exporter_listen_address:=":9119"}
: ${bind_exporter_stats_url:="http://localhost:8053/"}
: ${bind_exporter_named_pidfile:="/var/run/named/pid"}


pidfile=/var/run/bind_exporter.pid
command="/usr/sbin/daemon"
procname="%%PREFIX%%/bin/bind_exporter"
command_args="-f -p ${pidfile} -T ${name} \
    /usr/bin/env ${procname} \
    --web.listen-address=${bind_exporter_listen_address} \
    --bind.pid-file=${bind_exporter_named_pidfile} \
    --bind.stats-url=${bind_exporter_stats_url} \
    ${bind_exporter_args}"

start_precmd=bind_exporter_startprecmd

bind_exporter_startprecmd()
{
    if [ ! -e ${pidfile} ]; then
        install \
            -o ${bind_exporter_user} \
            -g ${bind_exporter_group} \
            /dev/null ${pidfile};
    fi
}

load_rc_config $name
run_rc_command "$1"