snf-network-hook

#!/bin/bash
#
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source /etc/default/snf-network
source /usr/lib/snf-network/common.sh

function fix_proxy_ndp() {

  # We invoke get_info only if needed in order not to log
  # and calculate things that are not needed eventually
  if [ "$GANETI_OLD_PRIMARY" == "$hostname" ]; then
    # This runs on the source node
    log "Fixing proxy ndp in old primary."
    get_info
    delete_neighbor_proxy
  elif [ "$GANETI_NEW_PRIMARY" == "$hostname" ]; then
    log "Do nothing in new primary. All done by if-up script"
  elif [ "$GANETI_INSTANCE_PRIMARY" == "$hostname" ]; then
    # This runs on the primary node of instance
    log "Fixing proxy ndp in primary node."
    get_info
    delete_neighbor_proxy
  fi

}

hostname=$(hostname -f)

INSTANCE=$GANETI_INSTANCE_NAME

FIRST=0
LAST=$((GANETI_INSTANCE_NIC_COUNT - 1))
for idx in $(seq $FIRST $LAST); do
  ip=GANETI_INSTANCE_NIC${idx}_IP
  mac=GANETI_INSTANCE_NIC${idx}_MAC
  mode=GANETI_INSTANCE_NIC${idx}_MODE
  link=GANETI_INSTANCE_NIC${idx}_LINK
  network=GANETI_INSTANCE_NIC${idx}_NETWORK_SUBNET
  subnet6=GANETI_INSTANCE_NIC${idx}_NETWORK_SUBNET6
  tags=GANETI_INSTANCE_NIC${idx}_NETWORK_TAGS
  eval IP=\$$ip
  eval MAC=\$$mac
  eval MODE=\$$mode
  eval LINK=\$$link
  eval NETWORK_SUBNET=\$$network
  eval NETWORK_SUBNET6=\$$subnet6
  eval NETWORK_TAGS=\$$tags

  for tag in $NETWORK_TAGS; do
    case $tag in
    $IP_LESS_ROUTED_TAG)
      log "Fixing $INSTANCE.."
      if [ "x$GANETI_OP_CODE" = "xOP_INSTANCE_MIGRATE" ]; then
        fix_proxy_ndp
      elif [ "x$GANETI_OP_CODE" = "xOP_INSTANCE_FAILOVER" ]; then
        fix_proxy_ndp
      elif [ "x$GANETI_OP_CODE" = "xOP_INSTANCE_SHUTDOWN" ]; then
        fix_proxy_ndp
      elif [ "x$GANETI_OP_CODE" = "xOP_INSTANCE_REMOVE" ]; then
        fix_proxy_ndp
      fi

    ;;
    esac
  done
done

exit 0