lxdbr.init

   1 #!/bin/sh
   2 #
   3 # Bridge interface setup for LXD
   4 #
   5 # chkconfig:    345 21 79
   6 #
   7
   8 # Source function library
   9 . /etc/rc.d/init.d/functions
  10
  11 # Get network config
  12 . /etc/sysconfig/network
  13
  14 # Check that networking is up.
  15 if is_yes "${NETWORKING}"; then
  16         if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
  17                 msg_network_down "lxdbr"
  18                 exit 1
  19         fi
  20 else
  21         exit 0
  22 fi
  23
  24 [ -f /etc/sysconfig/lxd ] && . /etc/sysconfig/lxd
  25
  26 if [ -z "$BRIDGE_DEV" -o -z "$BRIDGE_IPADDR" ]; then
  27         nls "Please configure BRIDGE_IPADDR in /etc/sysconfig/lxd"
  28         exit 1
  29 fi
  30
  31 is_bridge_up() {
  32         ip addr show $BRIDGE_DEV 2>/dev/null | grep -q $BRIDGE_IPADDR
  33 }
  34
  35 start() {
  36         if is_bridge_up; then
  37                 nls "lxd bridge %s is already up" "$BRIDGE_DEV"
  38                 return
  39         fi
  40
  41         msg_starting $BRIDGE_DEV
  42         busy
  43
  44         ip link add dev $BRIDGE_DEV type bridge
  45         ip a add $BRIDGE_IPADDR dev $BRIDGE_DEV
  46         ip link set up dev $BRIDGE_DEV
  47
  48         if is_bridge_up; then
  49                 ok
  50         else
  51                 fail
  52         fi
  53 }
  54
  55 stop() {
  56         if ! is_bridge_up; then
  57                 nls "lxd bridge %s is already down" "$BRIDGE_DEV"
  58                 return
  59         fi
  60
  61         if status --pidfile "/var/run/lxd.pid" lxd lxd >/dev/null; then
  62                 nls "lxd bridge cannot be stopped while lxd daemon is running"
  63                 RETVAL=1
  64                 return
  65         fi
  66
  67         msg_stopping $BRIDGE_DEV
  68         ip link set down dev $BRIDGE_DEV
  69         ip link del dev $BRIDGE_DEV
  70         ok
  71 }
  72
  73 condrestart() {
  74         if ! is_bridge_up; then
  75                 nls "lxd bridge %s is down" $BRIDGE_DEV
  76                 RETVAL=$1
  77                 return
  78         fi
  79
  80         stop
  81         start
  82 }
  83
  84 bridge_status() {
  85         local st="down"
  86         if ip link show $BRIDGE_DEV >/dev/null; then
  87                 st="up"
  88                 RETVAL=1
  89         fi
  90         nls "lxd bridge %s is %s" "$BRIDGE_DEV" "$st"
  91 }
  92
  93 RETVAL=0
  94 # See how we were called.
  95 case "$1" in
  96   start)
  97         start
  98         ;;
  99   stop)
 100         stop
 101         ;;
 102   restart)
 103         stop
 104         start
 105         ;;
 106   try-restart)
 107         condrestart 0
 108         ;;
 109   force-reload)
 110         condrestart 7
 111         ;;
 112   status)
 113         bridge_status
 114         ;;
 115   *)
 116         msg_usage "$0 {start|stop|restart|try-restart|force-reload|status}"
 117         exit 3
 118 esac
 119
 120 exit $RETVAL