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Re: Network script like vps.mount [message #9762 is a reply to message #9758]

Sat, 20 January 2007 02:14

larsks
Messages: 3
Registered: January 2007

Junior Member

Vasily,

There's no documentation in vznetcfg itself, there's no man page, and it's not mentioned anywhere else in the documentation distributed with the vzctl package. So, for posterity:

vznetcfg (probably /usr/sbin/vznetcfg) is run by vzctl just after it creates the veth interfaces specified in your configuration. You can find the call in src/lib/veth.c in the vzctl distribution in the veth_ctl() function.

The script is called like this:

vznetcfg init veth <veth_device>

E.g.,

vznetcfg init veth veth101.0

The environment variable VEID contains the current VEID. Unlike other scripts, VE_CONFFILE is not available so you'll have to calculate it yourself if you need it. Vasily et al: wouldn't it be simpler to set up the environment in the run_script() function so that it's the same for all scripts?

The script is called once for each veth interface defined in your configuration file.

If you set EXTERNAL_SCRIPT in /etc/vz/vznet.conf, vznetcfg will call this script with whatever arguments were originally passed to vznetcfg.

The script is only called during startup -- if you need to do something special to unconfigure the interfaces you're on your own.

I'm using the following EXTERNAL_SCRIPT (the BRIDGE variable is set in the VE configuration file. I should probably make this settable per-interface, rather than per-VE):

#!/bin/sh

. /etc/vz/conf/${VEID}.conf

case $1 in
 (init) shift
  case $1 in
   (veth) shift
    dev=$1 
    if [ -n "$BRIDGE" ]; then
     echo "+ Adding $dev to bridge $BRIDGE."
     brctl addif $BRIDGE $1
    fi
    ;;
  esac
  ;;
esac

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[Message index]

		SOLVED Network script like vps.mount By: arpad on Fri, 19 January 2007 14:05
		Re: Network script like vps.mount By: Vasily Tarasov on Fri, 19 January 2007 15:43
		Re: Network script like vps.mount By: larsks on Sat, 20 January 2007 02:14
		Re: Network script like vps.mount By: arpad on Sun, 21 January 2007 14:13
		Re: Network script like vps.mount By: Vasily Tarasov on Wed, 24 January 2007 07:59

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