#!/bin/sh

# PROVIDE: junos_exporter
# REQUIRE: LOGIN
# KEYWORD: shutdown
#
# Add the following lines to /etc/rc.conf.local or /etc/rc.conf
# to enable this service:
#
# junos_exporter_enable (bool):			Set to NO by default.
#						Set it to YES to enable junos_exporter.
# junos_exporter_user (string):			Set user that junos_exporter will run under
#						Default is "%%USERS%%".
# junos_exporter_group (string):		Set group that junos_exporter will run under
#						Default is "%%GROUPS%%".
# junos_exporter_args (string):			Set extra arguments to pass to junos_exporter
#						Default is "".
# junos_exporter_listen_address (string):	Set ip:port that junos_exporter will listen on
#						Default is "localhost:9326".
# junos_exporter_config (string):		Set configuration file path for junos_exporter
#						Default is "%%PREFIX%%/etc/junos_exporter.yml".

. /etc/rc.subr

name=junos_exporter
desc="junos_exporter for use with Prometheus"
rcvar=junos_exporter_enable

load_rc_config $name

: ${junos_exporter_enable:="NO"}
: ${junos_exporter_user:="%%USERS%%"}
: ${junos_exporter_group:="%%GROUPS%%"}
: ${junos_exporter_args:=""}
: ${junos_exporter_listen_address:="localhost:9326"}
: ${junos_exporter_config:="%%PREFIX%%/etc/junos_exporter.yml"}

conf_file="--config.file=${junos_exporter_config}"

pidfile=/var/run/junos_exporter.pid
command="/usr/sbin/daemon"
procname="%%PREFIX%%/bin/junos_exporter"
command_args="-f -p ${pidfile} -T ${name} \
    /usr/bin/env ${procname} \
    --web.listen-address=${junos_exporter_listen_address} \
    ${conf_file} \
    ${junos_exporter_args}"

start_precmd=junos_exporter_startprecmd

junos_exporter_startprecmd()
{
    if [ ! -e ${pidfile} ]; then
        install \
            -o ${junos_exporter_user} \
            -g ${junos_exporter_group} \
            /dev/null ${pidfile};
    else
        chown ${junos_exporter_user}:${junos_exporter_group} ${pidfile};
    fi
}

run_rc_command "$1"