#!/bin/bash
#
# /etc/rc.d/init.d/consul
#
# Daemonize the consul agent.
#
# chkconfig: 2345 95 95
# description: Service discovery and configuration made easy. \
# Distributed, highly available, and datacenter-aware.
# processname: consul
# pidfile: /var/run/consul/pidfile

# Source function library.
# shellcheck disable=SC1091
. /etc/init.d/functions
NAME=consul
CONSUL=/usr/local/bin/consul
CONFIG=/etc/$NAME/conf.d
PID_FILE=/var/run/$NAME/pidfile
LOG_FILE=/var/log/$NAME

# shellcheck disable=SC1090
[ -e /etc/sysconfig/$NAME ] && . /etc/sysconfig/$NAME
export GOMAXPROCS=${GOMAXPROCS:-2}

mkdir -p /var/run/$NAME
chown consul:consul /var/run/$NAME
chmod 2770 /var/run/$NAME


start() {
   printf "Starting %s" "$NAME: "
   daemon --user=consul \
      --pidfile="$PID_FILE" \
      "$CONSUL" agent -pid-file="$PID_FILE" -config-dir "$CONFIG" >> "$LOG_FILE" &
   retcode=$?
   touch /var/lock/subsys/$NAME
   return $retcode
}

stop() {
   printf "Shutting down %s" "$NAME: "
   killproc -p "$PID_FILE" $NAME
   retcode=$?
   rm -f /var/lock/subsys/$NAME
   return $retcode
}

case "$1" in
   start)
      if status -p "$PID_FILE" $NAME >/dev/null; then
         echo "$NAME already running"
      else
         start
      fi
   ;;
   stop)
      if status -p "$PID_FILE" $NAME >/dev/null; then
         stop
      else
         echo "$NAME not running"
      fi
   ;;
   info)
      "$CONSUL" info
   ;;
   status)
      status -p "$PID_FILE" $NAME
      exit $?
   ;;
   restart)
      if status -p "$PID_FILE" $NAME >/dev/null; then
         stop
      fi
      start
   ;;
   reload)
      if status -p "$PID_FILE" $NAME >/dev/null; then
         kill -HUP "$(cat "$PID_FILE")"
      else
         echo "$NAME not running"
      fi
   ;;
   condrestart)
      if [ -f /var/lock/subsys/$NAME ]; then
         if status -p "$PID_FILE" $NAME >/dev/null; then
            stop
         fi
         start
      fi
   ;;
   *)
      echo "Usage: $NAME {start|stop|status|reload|restart|condrestart|info}"
      exit 1
   ;;
esac
exit $?