ctdb/config/events.d/11.routing

   1 #!/bin/sh
   2
   3 # Attempt to add a set of static routes.
   4 #
   5 # Do this in "ipreallocated" rather than just "startup" because some
   6 # of the routes might be missing because the corresponding interface
   7 # has not previously had any IPs assigned or IPs were previously
   8 # released and corresponding routes were dropped.
   9 #
  10 # Addition of some routes might fail, errors go to /dev/null.
  11 #
  12 # Routes to add are defined in $CTDB_BASE/static-routes. Syntax is:
  13 #
  14 # IFACE NET/MASK GATEWAY
  15 #
  16 # Example:
  17 #
  18 # bond1 10.3.3.0/24 10.0.0.1
  19
  20 [ -n "$CTDB_BASE" ] || \
  21     CTDB_BASE=$(d=$(dirname "$0") ; cd -P "$d" ; dirname "$PWD")
  22
  23 . "${CTDB_BASE}/functions"
  24
  25 loadconfig
  26
  27 [ -f "${CTDB_BASE}/static-routes" ] || {
  28     exit 0
  29 }
  30
  31 case "$1" in
  32     ipreallocated)
  33         while read iface dest gw; do
  34             ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
  35         done <"${CTDB_BASE}/static-routes"
  36         ;;
  37
  38     updateip)
  39         oiface=$2
  40         niface=$3
  41         while read iface dest gw; do
  42             if [ "$niface" = "$iface" -o "$oiface" = "$iface" ] ; then
  43                 ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
  44             fi
  45         done <"${CTDB_BASE}/static-routes"
  46         ;;
  47 esac
  48
  49 exit 0