cgred.init

   1 #!/bin/sh
   2 #
   3 # cgred         CGroups Rules Engine Daemon
   4 # chkconfig:    2345 14 86
   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         if [ $RETVAL -eq 0 ] ; then
  63                 rm -f /var/lock/subsys/cgred /var/run/cgrulesengd.pid
  64         fi
  65 }
  66
  67 reload() {
  68         if [ ! -f /var/lock/subsys/cgred ] ; then
  69                 msg_not_running "CGroup Rules Engine Daemon"
  70                 return
  71         fi
  72
  73         show "Reloading rules configuration..."
  74         # SIGUSR2
  75         kill -s 12 $(cat ${pidfile})
  76         RETVAL=$?
  77         if [ $RETVAL -eq 0 ]; then
  78                 fail
  79         else
  80                 ok
  81         fi
  82 }
  83
  84 condrestart() {
  85         if [ ! -f /var/lock/subsys/cgred ]; then
  86                 msg_not_running "CGroup Rules Engine Daemon"
  87                 RETVAL=$1
  88                 return
  89         fi
  90
  91         stop
  92         start
  93 }
  94
  95 RETVAL=0
  96 # See how we are called
  97 case "$1" in
  98   start)
  99         start
 100         ;;
 101   stop)
 102         stop
 103         ;;
 104   restart)
 105         stop
 106         start
 107         ;;
 108   reload)
 109         reload
 110         ;;
 111   try-restart)
 112         condrestart 0
 113         ;;
 114   force-reload)
 115         condrestart 7
 116         ;;
 117   status)
 118         status --pidfile /var/run/cgrulesengd.pid cgrulesengd
 119         RETVAL=$?
 120         ;;
 121   *)
 122         msg_usage "$0 {start|stop|restart|try-restart|reload|force-reload|status}"
 123         exit 3
 124         ;;
 125 esac
 126
 127 exit $RETVAL