| SOLVED * Veth on startup (again) + bridge config - venet config [message #8413] |
Mon, 20 November 2006 04:31  |
sylvain
Messages: 6
Registered: November 2006
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Junior Member |
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Hi all,
I am using 5 VEs based on "centos-4-i386-minimal" template. I needed broadcast and I didn't care much about security so I configured my Ethernet device on each VE that I bridged on VE0: everything works fine!
Now I'd like to configure everything automatically when I run "vzctl start VEID".
Sounds like an old thread? Yes, another very similar question was asked. Installing the last version of vzctl would solve the problem. I already have the last version of the tool, however I still have a problem.
Here are a list of my problems:
- venet0 is always configured inside the VE. I removed /etc/sysconfig/network-script/ifcfg-venet0 and it still appears at the next "vzctl start": I would like to get rid of this, and I would like to setup a proper routing for vethX inside the the VE.
- it would be good if vethX could be added to vzbr0 when I run "vzctl start VEID". Is there a way to do this?
Here are the details of my configuration files:
A typical VEID.conf (without the copyright, thought)
ONBOOT="no"
# UBC parameters (in form of barrier:limit)
# Primary parameters
AVNUMPROC="40:40"
NUMPROC="65:65"
NUMTCPSOCK="80:80"
NUMOTHERSOCK="80:80"
VMGUARPAGES="6144:2147483647"
# Secondary parameters
KMEMSIZE="2752512:2936012"
TCPSNDBUF="319488:524288"
TCPRCVBUF="319488:524288"
OTHERSOCKBUF="132096:336896"
DGRAMRCVBUF="132096:132096"
OOMGUARPAGES="6144:2147483647"
# Auxiliary parameters
LOCKEDPAGES="32:32"
SHMPAGES="8192:8192"
PRIVVMPAGES="49152:53575"
NUMFILE="2048:2048"
NUMFLOCK="100:110"
NUMPTY="16:16"
NUMSIGINFO="256:256"
DCACHESIZE="1048576:1097728"
PHYSPAGES="0:2147483647"
NUMIPTENT="128:128"
# Disk quota parameters (in form of softlimit:hardlimit)
DISKSPACE="1048576:1153434"
DISKINODES="200000:220000"
QUOTATIME="0"
# CPU fair sheduler parameter
CPUUNITS="1000"
VE_ROOT="/users/home/vz/root/$VEID"
VE_PRIVATE="/users/home/vz/private/$VEID"
OSTEMPLATE="centos-4-i386-minimal"
IP_ADDRESS=""
ORIGIN_SAMPLE="vps.basic"
HOSTNAME="tcp1"
VETH="veth1,00:12:34:56:78:1A,eth1,00:12:34:56:78:1B "
Inside the corresponding VE, /etc/sysconfig/network-script/ifcfg-eth1
DEVICE=eth1
BOOTPROTO=none
BROADCAST=192.168.7.255
HWADDR=00:12:34:56:78:1B
IPADDR=192.168.7.1
NETMASK=255.255.255.0
NETWORK=192.168.7.0
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
PEERDNS=yes
IPV6INIT=no
GATEWAY=none
It is indeed parsed at startup of the VE.
However, since it also parse ifcfg-venet0, I end up with this routing:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.7.0 * 255.255.255.0 U 0 0 0 eth1
191.255.255.0 * 255.255.255.0 U 0 0 0 venet0
169.254.0.0 * 255.255.0.0 U 0 0 0 venet0
default 191.255.255.1 0.0.0.0 UG 0 0 0 venet0
Instead of this:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.7.0 * 255.255.255.0 U 0 0 0 eth1
default * 0.0.0.0 UG 0 0 0 eth1
Also I would like to get rid of the line GATEWAY in /etc/sysconfig/networking inside the VE:
NETWORKING="yes"
HOSTNAME="tcp1"
GATEWAY="191.255.255.1"
Finally I don't know when to execute "brctl add vzbr0 veth1".
Any help is much appreciated  . VE0 is a RHEL4
[Updated on: Wed, 22 November 2006 01:32] Report message to a moderator |
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| SOLVED * Veth on startup (again) + bridge config - venet config [message #8491 is a reply to message #8416] |
Tue, 21 November 2006 03:40  |
sylvain
Messages: 6
Registered: November 2006
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Junior Member |
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Hi,
This is solved. Here is the step I took to solve this problem. I am aware that bugs have been filed and fix my obsolete my configuration.
This is not too intrusive into openVZ tools and configurations. However it will not appeal to people who wants to control their VE ip configuration from the HN.
First, a bridge start script: /etc/init.d/bridge (to link at proper runlevel)
#!/bin/sh
#
# Source function library.
. /etc/init.d/functions
BRCTL=brctl
IFCONFIG=ifconfig
if [ ! -x /usr/sbin/$BRCTL ]; then
echo -n $"/usr/sbin/$BRCTL does not exist."; warning; echo
exit 0
fi
if [ ! -x /sbin/$IFCONFIG ]; then
echo -n $"/sbin/$IFCONFIG does not exist."; warning; echo
exit 0
fi
# Default bridge configuration:
BR_NAME="vzbr0"
BR_ADDRESS="0"
FORWARDING="yes"
PROXY_ARP="yes"
start() {
echo -n $"Strating bridge $BR_NAME: "
$BRCTL addbr $BR_NAME
if [ $? -eq 0 ]; then
success; echo
else
failure; echo; return 1
fi
echo -n $"Configuring bridge $BR_NAME: "
$IFCONFIG $BR_NAME $BR_ADDRESS
if [ $? -eq 0 ]; then
success; echo
else
failure; echo; return 1
fi
if [ $FORWARDING == "yes" ] ; then
echo -n $"Configuring bridge $BR_NAME forwading: "
if [ -f $"/proc/sys/net/ipv4/conf/$BR_NAME/forwarding" ] ; then
echo 1 > /proc/sys/net/ipv4/conf/$BR_NAME/forwarding
success; echo
else
failure; echo; return 1
fi
fi
if [ $PROXY_ARP == "yes" ] ; then
echo -n $"Configuring bridge $BR_NAME proxy arp: "
if [ -f $"/proc/sys/net/ipv4/conf/$BR_NAME/proxy_arp" ] ; then
echo 1 > /proc/sys/net/ipv4/conf/$BR_NAME/proxy_arp
success; echo
else
failure; echo; return 1
fi
fi
return 0
}
stop() {
echo -n $"Stopping bridge $BR_NAME: "
$BRCTL delbr $BR_NAME
if [ $? -eq 0 ]; then
success; echo
else
failure; echo; return 1
fi
return 0
}
status() {
if $BRCTL show 2>/dev/null | grep -q $BR_NAME ; then
echo $"Bridge $BR_NAME started."
else
echo $"Bridge $BR_NAME stopped."
fi
return 0
}
restart() {
stop
start
}
case "$1" in
start)
stop
start
RETVAL=$?
;;
stop)
stop
RETVAL=$?
;;
restart)
restart
RETVAL=$?
;;
status)
status
RETVAL=$?
;;
*)
echo $"Usage: $0 {start|stop|restart|status}"
exit 1
;;
esac
exit $RETVAL
I created a new distribution template configuration file: /etc/vz/dists/nonetdevice.conf
# distribution configuration that inibits:
# * vzctl --addip
# * vzctl --delip
# * vzctl --hostname
#
ADD_IP=null.sh
DEL_IP=null.sh
SET_HOSTNAME=null.sh
SET_DNS=set_dns.sh
SET_USERPASS=set_userpass.sh
SET_UGID_QUOTA=set_ugid_quota.sh
POST_CREATE=postcreate.sh
with the corresponding /etc/vz/dists/scripts/null.sh script
#!/bin/bash
# Null script. It just does not take any actions.
Now change the OSTEMPLATE variable for you VE in /etc/vz/conf/X.conf to be OSTEMPLATE="nonetdevice"
I changed a bit /usr/sbin/vznetcfg, in the function init_veth() only
function init_veth()
{
local dev=$1
/sbin/ifconfig ${dev} up
if [ "${VZNET_BRIDGE}" != "" ]
then
/usr/sbin/brctl addif ${VZNET_BRIDGE} ${dev}
fi
}
and added the following line in /etc/vz/vznet.conf
The remaining task consists in configuring the network inside your VE. Enter your VE and, regarding the distribution, setup your configuration files for your Ethernet device (/etc/sysconfig/network-scripts/ifcfg-ethX for centos/redhat/fedora, /etc/network/interfaces for debian based)
This does the job as I wanted.
[Updated on: Wed, 22 November 2006 01:34] Report message to a moderator |
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