Laboratoire de l'Informatique et du Parallélisme » CIAB

#! /bin/bash

#

# Generate a dhcp-hostsfile for dnsmasq.

# MAC_address,node_name,IP_address

#

# Get the directory of the script.

SCRIPT_PATH=`dirname $0`

# Get the script name.

SCRIPT_NAME=`basename $0`

# Source the common configuration variables.

. $SCRIPT_PATH/c-i-a-b.common

# Clean up the file

DHCP_HOSTSFILE="${SCRIPT_PATH}/${TEMPLATES_DIR}/etc/${DHCP_HOSTSFILE_BASENAME}"

rm -f $DHCP_HOSTSFILE

# Compute the compute nodes file entries.

# Must start at 1 (0 is the network address).

for i in `seq 1 $COMPUTE_NODE_MAX_NUM`

  do

    NODE_NUMBER=$i

    NODE_NUMBER_STRING=$NODE_NUMBER

    # Normalize the node numbers for the node names on 3 characters.

    while [ ${#NODE_NUMBER_STRING} -lt 3 ]

      do

        NODE_NUMBER_STRING="0$NODE_NUMBER_STRING"

    done

    # Transform the decimal node number in hexadecimal for the MAC address.

    NODE_NUMBER_HEXA=`printf "%X" $NODE_NUMBER`

    while [ ${#NODE_NUMBER_HEXA} -lt 2 ]

      do

        NODE_NUMBER_HEXA="0$NODE_NUMBER_HEXA"

    done

    MAC_ADDRESS="${CLUSTER_MAC_ADDRESS_PREFIX}:$NODE_NUMBER_HEXA"

    COMPUTE_NODE_NAME="${COMPUTE_NODE_NAME_PREFIX}${NODE_NUMBER_STRING}"

    echo "${MAC_ADDRESS},id:*,${CLUSTER_STATIC_NETWORK_PREFIX}.${NODE_NUMBER},${COMPUTE_NODE_NAME}" >> $DHCP_HOSTSFILE

done

# Create the entry for the front-end.

NODE_NUMBER_HEXA=`printf "%X" $FRONT_END_STATIC_NETWORK_POSTFIX`

MAC_ADDRESS="${CLUSTER_MAC_ADDRESS_PREFIX}:$NODE_NUMBER_HEXA"

echo "${MAC_ADDRESS},id:*,${CLUSTER_STATIC_NETWORK_PREFIX}.${FRONT_END_STATIC_NETWORK_POSTFIX},$FRONT_END_HOST_NAME" >> $DHCP_HOSTSFILE

echo

echo Copy the file to the front end!

echo

exit 0