[one-users] Configure - Script Network - Init

[Javier Fontan]

Hello Miguel,

Have you checked that your VM is up and running? Issue a onevm list  
command to see the state and if it is "runn" you can also see what  
physical node is executing it. In case you are using xen hypervisor  
you can go to that node a use xm console one-<vmid> to open a console  
to that VM and see what is happening and check if the network was  
correctly configured.

I am not so familiarized with Centos networking scripts but if that  
scripts are correctly configured after the init script that brings up  
the net it should work. Check the generated scripts and try to bring  
up the network manually.

Bye

On Mar 17, 2009, at 12:23 PM, Miguel J. - Templeir wrote:

> 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,  
> Universidad   #
> # Complutense de Madrid (dsa- 
> research.org)                                   #
> #                                                                            #
> # Licensed under the Apache License, Version 2.0 (the "License");  
> you may    #
> # not use this file except in compliance with the License. You may  
> obtain    #
> # a copy of the License  
> at                                                   #
> #                                                                            #
> # http://www.apache.org/licenses/ 
> LICENSE-2.0                                 #
> #                                                                            #
> # Unless required by applicable law or agreed to in writing,  
> software        #
> # distributed under the License is distributed on an "AS IS"  
> BASIS,          #
> # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or  
> implied.   #
> # See the License for the specific language governing permissions  
> and        #
> # limitations under the  
> License.                                             #
> #--------------------------------------------------------------------------- #
>
> # 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`
> ------------------
>
>
>
>
>
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> Users at lists.opennebula.org
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-- 
Javier Fontan, Grid & Virtualization Technology Engineer/Researcher
DSA Research Group: http://dsa-research.org
Globus GridWay Metascheduler: http://www.GridWay.org
OpenNebula Virtual Infrastructure Engine: http://www.OpenNebula.org