Re: Introducing wicked

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On Fri, Nov 26, 2010 at 04:02:28PM -0500, Jon Masters wrote:
> Hi Olaf,
> 
> Thanks for posting about your project.
> 
> On Fri, 2010-11-26 at 10:24 +0100, Olaf Kirch wrote:
> 
> > 1. ifcfg files are dead
> 
> Ok. But I think we want to be very careful with this. Yes, it's nice to
> use structured data formats but IMO we want to make sure sysadmins can
> still edit files by hand without using any kind of Linux Registry to do
> it (g/dconf/etc). So if you're just proposing making the format have
> some kind of structured standard, ok, but please don't go too far :) 

.. and remember that Augeas solves the problem of having traditional
config files that can be edited in a structured way, including
preserving all the comments and whitespace and everything else.

  # augtool match '//files/etc/ntp.conf/server[*]'
  /files/etc/ntp.conf/server[1] = 0.fedora.pool.ntp.org
  /files/etc/ntp.conf/server[2] = 1.fedora.pool.ntp.org
  /files/etc/ntp.conf/server[3] = 2.fedora.pool.ntp.org
  /files/etc/ntp.conf/server[4] = 3.fedora.pool.ntp.org
  # augtool <<EOF
  > set '//files/etc/ntp.conf/server[1]' ntp.annexia.org
  > save
  > EOF
  Saved 1 file(s)
  # augtool match '//files/etc/ntp.conf/server[*]'
  /files/etc/ntp.conf/server[1] = ntp.annexia.org
  /files/etc/ntp.conf/server[2] = 1.fedora.pool.ntp.org
  /files/etc/ntp.conf/server[3] = 2.fedora.pool.ntp.org
  /files/etc/ntp.conf/server[4] = 3.fedora.pool.ntp.org

[ then look at /etc/ntp.conf to verify that all comments and
formatting are preserved ]

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://et.redhat.com/~rjones/libguestfs/
See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html
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