config/init/common/lxc-containers.in

   1 #!/bin/sh
   2
   3 sysconfdir="@SYSCONFDIR@"
   4 distrosysconfdir="@LXC_DISTRO_SYSCONF@"
   5 bindir="@BINDIR@"
   6 localstatedir="@LOCALSTATEDIR@"
   7
   8 # These can be overridden in @LXC_DISTRO_SYSCONF@/lxc
   9
  10 # Autostart containers?
  11 LXC_AUTO="true"
  12
  13 # BOOTGROUPS - What groups should start on bootup?
  14 #       Comma separated list of groups.
  15 #       Leading comma, trailing comma or embedded double
  16 #       comma indicates when the NULL group should be run.
  17 # Example (default): boot the onboot group first then the NULL group
  18 BOOTGROUPS="onboot,"
  19
  20 # SHUTDOWNDELAY - Wait time for a container to shut down.
  21 #       Container shutdown can result in lengthy system
  22 #       shutdown times.  Even 5 seconds per container can be
  23 #       too long.
  24 SHUTDOWNDELAY=5
  25
  26 # OPTIONS can be used for anything else.
  27 #       If you want to boot everything then
  28 #       options can be "-a" or "-a -A".
  29 OPTIONS=
  30
  31 # STOPOPTS are stop options.  The can be used for anything else to stop.
  32 #       If you want to kill containers fast, use -k
  33 STOPOPTS="-a -A -s"
  34
  35 if [ -d "$localstatedir"/lock/subsys ]
  36 then
  37         lockdir="$localstatedir"/lock/subsys
  38 else
  39         lockdir="$localstatedir"/lock
  40 fi
  41
  42 # Source any configurable options
  43 [ ! -f "$distrosysconfdir"/lxc ] || . "$distrosysconfdir"/lxc
  44
  45 # Check for needed utility program
  46 [ -x "$bindir"/lxc-autostart ] || exit 1
  47
  48 # If libvirtd is providing the bridge, it might not be
  49 # immediately available, so wait a bit for it before starting
  50 # up the containers or else any that use the bridge will fail
  51 # to start
  52 wait_for_bridge()
  53 {
  54     [ "x$USE_LXC_BRIDGE" = "xtrue" ] || { return 0; }
  55
  56     local BRNAME try flags br
  57     [ -f "$sysconfdir"/lxc/default.conf ] || { return 0; }
  58
  59     BRNAME=`grep '^[    ]*lxc.net.0.link' "$sysconfdir"/lxc/default.conf | sed 's/^.*=[         ]*//'`
  60     if [ -z "$BRNAME" ]; then
  61         return 0
  62     fi
  63
  64     for try in `seq 1 30`; do
  65         for br in ${BRNAME}; do
  66              [ -r /sys/class/net/${br}/flags ] || { sleep 1; continue 2; }
  67              read flags < /sys/class/net/${br}/flags
  68              [ $((flags & 0x1)) -eq 1 ] || { sleep 1; continue 2; }
  69         done
  70         return 0
  71     done
  72 }
  73
  74 # See how we were called.
  75 case "$1" in
  76     start)
  77         [ "x$LXC_AUTO" = "xtrue" ] || { exit 0; }
  78
  79         [ ! -f "$lockdir"/lxc ] || { exit 0; }
  80
  81         if [ -n "$BOOTGROUPS" ]; then
  82             BOOTGROUPS="-g $BOOTGROUPS"
  83         fi
  84         touch "$lockdir"/lxc
  85         # Start containers
  86         wait_for_bridge
  87
  88         # Start autoboot containers first then the NULL group "onboot,".
  89         "$bindir"/lxc-autostart $OPTIONS $BOOTGROUPS
  90         rm -f "$lockdir"/lxc
  91     ;;
  92
  93     stop)
  94         if [ -n "$SHUTDOWNDELAY" ]; then
  95             SHUTDOWNDELAY="-t $SHUTDOWNDELAY"
  96         fi
  97
  98         # The stop is serialized and can take excessive time.  We need to avoid
  99         # delaying the system shutdown / reboot as much as we can since it's not
 100         # parallelized...  Even 5 second timout may be too long.
 101         "$bindir"/lxc-autostart $STOPOPTS $SHUTDOWNDELAY
 102     ;;
 103
 104     restart|reload|force-reload)
 105         $0 stop
 106         $0 start
 107     ;;
 108
 109     *)
 110         echo "Usage: $0 {start|stop|restart|reload|force-reload}"
 111         exit 2
 112     ;;
 113 esac
 114
 115 exit $?