[one-users] Configure - Script Network - Init

[Miguel J. - Templeir]

Hello

I've finished the configuration of Open Nebula, with the Front End 
(master-nebula) and the Clusters (nebula 1, 2, ...).

But when I created a vm from master-nebula:

    onevm create centos-public.one

When I created the vm, I'm execute:

    onevnet show 0             (the id of VLAN)

This command show the ip of VM. So, I can connect via ssh, but I 
couldn't connect.

-------

I use script:    
http://www.opennebula.org/doku.php?id=documentation:howto_vnet

And modify some lines for the differents distributions of Unix. The 
script for centos 5.2:

------------
#!/bin/bash
#
# chkconfig: 2345 10 90                     -- Priority RC, Init after 
interfaz network. But i want before.
# description:  network reconfigure
#                                                    
# 
-------------------------------------------------------------------------- #
# Copyright 2002-2009, Distributed Systems Architecture Group, 
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
implied.   #
# See the License for the specific language governing permissions 
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#--------------------------------------------------------------------------- 
#

# Gets IP address from a given MAC
mac2ip() {
    mac=$1
 
    let ip_a=0x`echo $mac | cut -d: -f 3`
    let ip_b=0x`echo $mac | cut -d: -f 4`
    let ip_c=0x`echo $mac | cut -d: -f 5`
    let ip_d=0x`echo $mac | cut -d: -f 6`
 
    ip="$ip_a.$ip_b.$ip_c.$ip_d"
 
    echo $ip
}
 
# Gets the network part of an IP
get_network() {
    IP=$1
 
    echo $IP | cut -d'.' -f1,2,3
}
 
get_interfaces() {
    IFCMD="/sbin/ifconfig -a"
 
    $IFCMD | grep ^eth | sed 's/ *Link encap:Ethernet.*HWaddr /-/g'
}
 
get_dev() {
    echo $1 | cut -d'-' -f 1
}
 
get_mac() {
    echo $1 | cut -d'-' -f 2
}
 
gen_hosts() {
    NETWORK=$1
    echo "127.0.0.1 localhost"
    for n in `seq -w 01 99`; do
        n2=`echo $n | sed 's/^0*//'`
        echo ${NETWORK}.$n2 cluster${n}
    done
}
 
gen_exports() {
    NETWORK=$1
    echo "/images ${NETWORK}.0/255.255.255.0(rw,async,no_subtree_check)"
}
 
gen_hostname() {
    MAC=$1
    NUM=`mac2ip $MAC | cut -d'.' -f4`
    NUM2=`echo 000000$NUM | sed 's/.*\(..\)/\1/'`
    echo cluster$NUM2
}
 
gen_interface() {
 DEV_MAC=$1
 DEV=`get_dev $DEV_MAC`
 MAC=`get_mac $DEV_MAC`
 IP=`mac2ip $MAC`
 
cat <<EOT
 DEVICE=$DEV
 BOOTPROTO=none
 HWADDR=$MAC
 ONBOOT=yes
 TYPE=Ethernet
 NETMASK=255.255.255.0
 IPADDR=$IP
EOT
 
    if [ $DEV == "eth0" ]; then
      echo " GATEWAY=$NETWORK.1"
    fi
 
echo ""
}
 
 
IFACES=`get_interfaces`
 
for i in $IFACES; do
    MASTER_DEV_MAC=$i
    DEV=`get_dev $i`
    MAC=`get_mac $i`
    IP=`mac2ip $MAC`
    NETWORK=`get_network $IP`
done
 
# gen_hosts $NETWORK > /etc/hosts
 
# gen_exports $NETWORK  > /etc/exports
 
# gen_hostname $MAC  > /etc/hostname
(
cat <<EOT

EOT

for i in $IFACES; do
    gen_interface $i
done
) > /etc/sysconfig/network-scripts/ifcfg-${DEV}

# *Two lines, bellow: 

This lines restarting network to re-configure IP with the new 
configuration. Because when the Os start, Mac Address Change to change IP.

    This script run correctly but I've been trying to configure RC to 
avoid reset interfaz network. I think that I don't know configure 
correctly RC in Centos 5.2, ubuntu 8.04.1. And the question is... How I 
can configure RC to init the script correctly without reset interfaces 
network?

**ifdown $DEV                                                            
     
ifup $DEV*

exit $RETVAL
# /bin/hostname `cat /etc/hostname`
------------------