#!/bin/sh
#
# chkconfig: - 75 16
# description: Enable repmgrd replication management and monitoring daemon for PostgreSQL
# processname: repmgrd
# pidfile="/var/run/${NAME}.pid"

# Source function library.
INITD=/etc/rc.d/init.d
. $INITD/functions

# Get function listing for cross-distribution logic.
TYPESET=`typeset -f|grep "declare"`

# Get network config.
. /etc/sysconfig/network

DESC="PostgreSQL replication management and monitoring daemon"
NAME=repmgrd

REPMGRD_ENABLED=no
REPMGRD_OPTS=
REPMGRD_USER=postgres
REPMGRD_BIN=/usr/pgsql-9.3/bin/repmgrd
REPMGRD_PIDFILE=/var/run/repmgrd.pid
REPMGRD_LOCK=/var/lock/subsys/${NAME}
REPMGRD_LOG=/var/lib/pgsql/9.3/data/pg_log/repmgrd.log

# Read configuration variable file if it is present
[ -r /etc/sysconfig/$NAME ] && . /etc/sysconfig/$NAME

# For SELinux we need to use 'runuser' not 'su'
if [ -x /sbin/runuser ]
then
    SU=runuser
else
    SU=su
fi

test -x $REPMGRD_BIN || exit 0

case "$REPMGRD_ENABLED" in
    [Yy]*)
	break
	;;
    *)
	exit 0
	;;
esac


if [ -z "${REPMGRD_OPTS}" ]
then
    echo "Not starting ${NAME}, REPMGRD_OPTS not set in /etc/sysconfig/${NAME}"
    exit 0
fi

start()
{
    REPMGRD_START=$"Starting ${NAME} service: "

    # Make sure startup-time log file is valid
    if [ ! -e "${REPMGRD_LOG}" -a ! -h "${REPMGRD_LOG}" ]
    then
        touch "${REPMGRD_LOG}" || exit 1
        chown ${REPMGRD_USER}:postgres "${REPMGRD_LOG}"
        chmod go-rwx "${REPMGRD_LOG}"
        [ -x /sbin/restorecon ] && /sbin/restorecon "${REPMGRD_LOG}"
    fi

    echo -n "${REPMGRD_START}"
    $SU -l $REPMGRD_USER -c "${REPMGRD_BIN} ${REPMGRD_OPTS} -p ${REPMGRD_PIDFILE} &" >> "${REPMGRD_LOG}" 2>&1 < /dev/null
    sleep 2
    pid=`head -n 1 "${REPMGRD_PIDFILE}" 2>/dev/null`
    if [ "x${pid}" != "x" ]
    then
        success "${REPMGRD_START}"
        touch "${REPMGRD_LOCK}"
        echo $pid > "${REPMGRD_PIDFILE}"
        echo
    else
        failure "${REPMGRD_START}"
        echo
        script_result=1
    fi
}

stop()
{
    echo -n $"Stopping ${NAME} service: "
    if [ -e "${REPMGRD_LOCK}" ]
    then
        killproc ${NAME}
        ret=$? 
        if [ $ret -eq 0 ]
        then
            echo_success
            rm -f "${REPMGRD_PIDFILE}"
            rm -f "${REPMGRD_LOCK}"
        else
            echo_failure
            script_result=1
        fi
    else
        # not running; per LSB standards this is "ok"   
        echo_success
    fi
    echo
}


# See how we were called.
case "$1" in
  start)
        start
        ;;
  stop)
        stop
        ;;
  status)
        status -p $REPMGRD_PIDFILE $NAME
        script_result=$?
        ;;
  restart)
        stop
	start
        ;;
  *)
        echo $"Usage: $0 {start|stop|status|restart}"
        exit 2
esac

exit $script_result