Synnefo » snf-network

#!/bin/bash

DIR=/var/lib/snf-network

NEW_GATEWAY=$1

NEW_TYPE=$2

NETWORK=$3

RT_TABLES=/etc/iproute2/rt_tables

if [ $# -ne 3 ]; then

  echo "$0 <gateway> <private/public> <name>"

  exit 1

fi

source /etc/default/snf-network

NETWORK_FILE=$DIR/networks/$NETWORK

source $NETWORK_FILE

OLD_GATEWAY=$GATEWAY

OLD_TYPE=$TYPE

INTERFACES=$(ls $DIR/interfaces/$NETWORK-*)

for IFACES in $INTERFACES ; do

  NODEGROUP=$(echo $IFACES | sed 's/.*interfaces.*-//')

  source $DIR/nodegroups/$NODEGROUP

  read x VLAN MODE BRIDGE < $INTERFACES

  if [ $MODE == "routed" ]; then 

    if [ $TYPE == "public" ]; then

      ip route replace default via $GATEWAY dev $VLAN table rt_$NETWORK

    fi

  fi

  if [ $MODE == "bridged" ]; then

    if [ ! -z $GATEWAY ]; then

      ip route replace default via $GATEWAY dev $BRIDGE table rt_$NETWORK

      if [ $TYPE == "private" ]; then 

        if [ ! -z $ROUTER ]; then 

          if [ $(hostname) == $ROUTER ]; then

            NETMASK=$(ipcalc $SUBNET | grep Netmask | awk '{print $4}')

            ip addr del $GATEWAY/$NETMASK dev $BRIDGE  

            ip addr add $NEW_GATEWAY/$NETMASK dev $BRIDGE  

          fi  

        fi

      fi

    fi

  fi

  if [ ! -z $NEW_GATEWAY ]; then 

    sed -i '/^GATEWAY/ s/=.*/='"$NEW_GATEWAY"'/' $NETWORK_FILE 

  fi

  if [ ! -z $NEW_TYPE ]; then

    sed -i '/^TYPE/ s/=.*/='"$NEW_TYPE"'/' $NETWORK_FILE

  fi 

done