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[Bug 1075256] Re: allow custom method in "/etc/network/interfaces"

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Andrew Shadura <andrewsh@xxxxxxxxxx>
Date: Mon, 08 Feb 2016 09:35:40 -0000
Reply-to: Bug 1075256 <1075256@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Bug watch added: Debian Bug tracker #814075
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=814075

** Also affects: ifupdown (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=814075
   Importance: Unknown
       Status: Unknown

** Also affects: ifupdown
   Importance: Undecided
       Status: New

** No longer affects: ifupdown

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https://bugs.launchpad.net/bugs/1075256

Title:
  allow custom method in "/etc/network/interfaces"

Status in ifupdown package in Ubuntu:
  Confirmed
Status in ifupdown package in Debian:
  Unknown

Bug description:
  we have several custom networking scripts, and find it would be
  easiest to handle them with a custom "method" in
  "/etc/network/interfaces" .  we can't just add scripts to if-up.d,
  because we need strong ordering of command execution.  examples would
  be adding macvlans, and ip tunnels.   for example, we need pre-up in
  "/etc/network/interfaces" to run before ANY other scripts , because we
  do an ip link creation there.  there are builtin "methods" which cover
  some of the functionality we want, but clearly this doesn't scale like
  a plugin based architecture would.   unfortunately, there is no easy
  way to plug in a custom method for handling these networking stanzas.
  thus, we have to write stuff like this for each interface.

  auto vmac-ha
  iface vmac-ha inet manual
          [ NORMAL ENTRIES ] 
          pre-up          my-vmac-helper
          up              my-vmac-helper
          down            my-vmac-helper
          post-down       my-vmac-helper

  it would be MUCH easier to have something like this

  auto vmac-ha
  iface vmac-ha inet custom my-vmac-helper
          [ NORMAL ENTRIES ]

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