#!/bin/sh
#
# chkconfig: - 64 36
# 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 "$REPMGRD_LOG" || exit 1
        chown postgres:postgres "$REPMGRD_LOG"
        chmod go-rwx "$REPMGRD_LOG"
        [ -x /sbin/restorecon ] && /sbin/restorecon "$REPMGRD_LOG"
    fi

    echo -n "$REPMGRD_START"
    $SU -l postgres -c "$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