cgred.init

   1 #!/bin/sh
   2 #
   3 # cgred         CGroups Rules Engine Daemon
   4 # chkconfig:    2345 02 98
   5 # description:  This is a daemon for automatically classifying processes \
   6 #               into cgroups based on UID/GID.
   7 #
   8 # processname:  cgrulesengd
   9 # pidfile:      /var/run/cgrulesengd.pid
  10 #
  11
  12 # Source function library
  13 . /etc/rc.d/init.d/functions
  14
  15 start() {
  16         if [ -f /var/lock/subsys/cgred ]; then
  17                 msg_already_running "CGroup Rules Engine Daemon"
  18                 return
  19         fi
  20
  21         if [ ! -s /etc/cgrules.conf ]; then
  22                 nls "CGroup Rules Engine Daemon not configured"
  23                 RETVAL=6
  24                 return
  25         fi
  26         if ! grep -qs "^cgroup" /proc/mounts; then
  27                 nls "Cannot find cgroups, is cgconfig service running?"
  28                 RETVAL=1
  29                 return
  30         fi
  31
  32         msg_starting "CGroup Rules Engine Daemon"
  33         # Read in configuration options.
  34         OPTIONS=""
  35         if [ -f /etc/sysconfig/cgred.conf ]; then
  36                 . /etc/sysconfig/cgred.conf
  37
  38                 OPTIONS="$NODAEMON $LOG"
  39                 [ -n "$LOG_FILE" ] && OPTIONS="$OPTIONS --logfile=$LOG_FILE"
  40                 [ -n "$SOCKET_USER" ] && OPTIONS="$OPTIONS -u $SOCKET_USER"
  41                 [ -n "$SOCKET_GROUP" ] && OPTIONS="$OPTIONS -g $SOCKET_GROUP"
  42         fi
  43
  44         daemon --pidfile /var/run/cgrulesengd.pid /sbin/cgrulesengd $OPTIONS
  45         RETVAL=$?
  46         if [ $RETVAL -ne 0 ]; then
  47                 return 7
  48         fi
  49         touch /var/lock/subsys/cgred
  50         pidof cgrulesengd > /var/run/cgrulesengd.pid
  51 }
  52
  53 stop() {
  54         if [ ! -f /var/lock/subsys/cgred ]; then
  55                 msg_not_running "CGroup Rules Engine Daemon"
  56                 return
  57         fi
  58
  59         msg_stopping "CGroup Rules Engine Daemon"
  60         killproc --pidfile /var/run/cgrulesengd.pid cgrulesengd -TERM
  61         RETVAL=$?
  62         rm -f /var/lock/subsys/cgred /var/run/cgrulesengd.pid
  63 }
  64
  65 reload() {
  66         if [ ! -f /var/lock/subsys/cgred ] ; then
  67                 msg_not_running "CGroup Rules Engine Daemon"
  68                 return
  69         fi
  70
  71         show "Reloading rules configuration..."
  72         # SIGUSR2
  73         kill -s 12 $(cat ${pidfile})
  74         RETVAL=$?
  75         if [ $RETVAL -eq 0 ]; then
  76                 fail
  77         else
  78                 ok
  79         fi
  80 }
  81
  82 condrestart() {
  83         if [ ! -f /var/lock/subsys/cgred ]; then
  84                 msg_not_running "CGroup Rules Engine Daemon"
  85                 RETVAL=$1
  86                 return
  87         fi
  88
  89         stop
  90         start
  91 }
  92
  93 RETVAL=0
  94 # See how we are called
  95 case "$1" in
  96   start)
  97         start
  98         ;;
  99   stop)
 100         stop
 101         ;;
 102   restart)
 103         stop
 104         start
 105         ;;
 106   reload)
 107         reload
 108         ;;
 109   try-restart)
 110         condrestart 0
 111         ;;
 112   force-reload)
 113         condrestart 7
 114         ;;
 115   status)
 116         status --pidfile /var/run/cgrulesengd.pid cgrulesengd
 117         RETVAL=$?
 118         ;;
 119   *)
 120         msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|status}"
 121         exit 3
 122         ;;
 123 esac
 124
 125 exit $RETVAL