[one-users] Configure - Script Network - Init
Miguel J. - Templeir
mjcampos at citic.es
Wed Mar 18 01:46:10 PDT 2009
VM work correctly and create and destroy without problems.
My Question is in the boot of VM. When any VM is booting, Open Nebula
with the vnet configuration assign a MAC to this VM. This MAC with this
script, change IP address and configuration network. Then I restart
interfaces network to update IP and configuration but I want to setup
files of interfaz before init the script network of RC.
For example in ubuntu: /etc/init.d/network
Javier Fontan escribió:
>
> 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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>
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