util-vserver.init

   1 #!/bin/sh
   2 #
   3 # util-vserver: sets the path to vshelper and kills all guest processes
   4 #
   5 # chkconfig:    2345 10 70
   6 # description:  Sets the path to vshelper and kills all guest processes
   7
   8 # if kernel not capable, exit early
   9 if [ ! -d /proc/virtual ]; then
  10         case "$1" in
  11         start|stop|reload|force-reload|restart)
  12                 exit 0
  13                 ;;
  14         esac
  15 fi
  16
  17 # Source function library
  18 . /etc/rc.d/init.d/functions
  19
  20 [ -n "$UTIL_VSERVER_VARS" ] || UTIL_VSERVER_VARS=/usr/share/util-vserver/util-vserver-vars
  21 if [ ! -e "$UTIL_VSERVER_VARS" ] ; then
  22         echo "Can not find util-vserver installation (the file '$UTIL_VSERVER_VARS' would be expected); aborting..." >&2
  23         exit 1
  24 fi
  25 . "$UTIL_VSERVER_VARS"
  26
  27 start()
  28 {
  29         show "Setting path to vshelper"
  30         if [ -e /proc/sys/kernel/vshelper ]; then
  31                 echo "$_VSHELPER" >/proc/sys/kernel/vshelper
  32                 ok
  33                 RETVAL1=0
  34         else
  35                 fail
  36                 RETVAL1=1
  37         fi
  38         run_cmd "Loading default device map" $__PKGLIBDIR/bash-wrapper "handleDeviceMap --set 0 $__CONFDIR/.defaults/apps/vdevmap"
  39         RETVAL=$?
  40         [ "$RETVAL" -eq 0 -a "$RETVAL1" -eq 0 ] && touch /var/lock/subsys/util-vserver
  41 }
  42
  43 # Stop all running, but non-default guests"
  44 stop()
  45 {
  46         run_cmd "Stopping all running guests" $_START_VSERVERS -j 1 --all --stop
  47
  48         xids=$(ls -1 /proc/virtual 2>/dev/null | egrep -v 'info|status' 2>/dev/null)
  49         if [ -n "$xids" ]; then
  50                 show "Sending all contexts the TERM signal"
  51                 for xid in $xids; do
  52                         $_VATTRIBUTE --xid $xid --set --flag ~persistent
  53                         $_VKILL --xid $xid -s 15
  54                 done
  55                 xids=$(ls -1 /proc/virtual 2>/dev/null | egrep -v 'info|status' 2>/dev/null)
  56                 if [ -n "$xids" ]; then
  57                         fail
  58                 else
  59                         ok
  60                 fi
  61         fi
  62         if [ -n "$xids" ]; then
  63                 sleep 5
  64                 show "Sending all contexts the KILL signal"
  65                 for xid in $xids; do
  66                         $_VATTRIBUTE --xid $xid --set --flag ~persistent
  67                         $_VKILL --xid $xid -s 9
  68                 done
  69                 xids=$(ls -1 /proc/virtual 2>/dev/null | egrep -v 'info|status' 2>/dev/null)
  70                 if [ -n "$xids" ]; then
  71                         fail
  72                 else
  73                         ok
  74                 fi
  75         fi
  76         rm -f /var/lock/subsys/util-vserver >/dev/null 2>&1
  77 }
  78
  79 RETVAL=0
  80 # See how we were called.
  81 case "$1" in
  82   start)
  83         start
  84         ;;
  85   stop)
  86         stop
  87         ;;
  88 # restart behaves like reload because a stop-start sequence
  89 # would kill all running vservers AND would not start them
  90   restart|reload|force-reload)
  91         start
  92         [ $? -ne 0 ] && RETVAL=7
  93         ;;
  94   status)
  95         if [ -e /proc/sys/kernel/vshelper ]; then
  96                 read _vsh </proc/sys/kernel/vshelper
  97                 show "Path to vshelper: $_vsh, expected: $_VSHELPER"
  98                 if [ "$_vsh" = "$_VSHELPER" ]; then
  99                         ok
 100                         RETVAL=0
 101                 else
 102                         fail
 103                         RETVAL=1
 104                 fi
 105         else
 106                 RETVAL=1
 107         fi
 108         ;;
 109   *)
 110         msg_usage "$0 {start|stop|restart|reload|force-reload|status}"
 111         exit 3
 112         ;;
 113 esac
 114
 115 exit $RETVAL