Puppet users - Apr 2011 - augtool/augeas -- clearly missing something...

Hi

I''ve just started trying to use augeas to manage /etc/network/
interfaces on Ubuntu....

I found some stuff in the archive that seems to match what I need but
I can''t make anything work.

I have
   augeas { "network_interface":
      context => "/etc/network/interfaces",
      changes => [
          "set auto[.= eth1] eth1",
          "set iface[.= eth1] eth1",
          "set iface[.= eth1]/family inet ",
          "set iface[.= eth1]/method manual ",
}

This does not produce any errors but does not do anything either.

I installed augtool on the box and tried:

cp /etc/network/interfaces .
rful011@mon225044:~$ augtool
augtool> set file/interfaces/iface[eth1] eth1
augtool> set file/interfaces/iface[eth1]/family inet
augtool> set file/interfaces/iface[eth1]/method manual
augtool> save
augtool> ls  file/interfaces/iface[eth1]
augtool> quit

again no errors (no feedback at all ?) and no changes to the file.

Clearly I am missing something!

Russell

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>      context => "/etc/network/interfaces",
Shouldn''t this be "/files/etc/network/interfaces"?

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On 13/04/2011, at 4:16 AM, Adam Heinz wrote:
>>      context => "/etc/network/interfaces",
> 
> Shouldn''t this be "/files/etc/network/interfaces"?
indeed! now I get:

err:
/Stage[main]//Node[mon225044.insec.auckland.ac.nz]/Augeas[network_interface]/returns:
change from need_to_run to 0 failed: Save failed with return code false

so it is now trying to do something. I just have to figure out what!  :)

It had to be something simple.

THanks, Russell

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On Apr 13, 4:16 am, Adam Heinz <a...@metricwise.net>
wrote:
> >      context => "/etc/network/interfaces",
>
> Shouldn''t this be "/files/etc/network/interfaces"?
Thanks! that was the thing I was missing.

The iface stuff works fine now but I can''t figure out how to add a new
auto line

"set auto[. = ''eth1''] eth1",

gives an error on save ?

augtool shows auto[1] having multiple values:

augtool> ls /files/etc/network/interfaces/auto
1 = lo
1 = eth0

so how should I add entries?

and by the way http://projects.puppetlabs.com/projects/puppet/wiki/Puppet_Augeas
is the best augtool documentation I found -- more in depth than the
quick tour on the augtool site.
Russell

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On 12/04/11 23:43, russell.fulton wrote:
> On Apr 13, 4:16 am, Adam Heinz <a...@metricwise.net> wrote:
>>>      context => "/etc/network/interfaces",
>>
>> Shouldn''t this be "/files/etc/network/interfaces"?
> 
> Thanks! that was the thing I was missing.
> 
> The iface stuff works fine now but I can''t figure out how to add a
new
> auto line
> 
> "set auto[. = ''eth1''] eth1",
> 
> gives an error on save ?
> 
> augtool shows auto[1] having multiple values:
> 
> augtool> ls /files/etc/network/interfaces/auto
> 1 = lo
> 1 = eth0
> 
> so how should I add entries?
So that method is trying to set the value of auto to ''eth1'',
but the
tree layout has a ''1'' node under each ''auto''
node.  The best way to see
this is to look at augtool''s print command:

augtool> print /files/etc/network/interfaces/auto
/files/etc/network/interfaces/auto[1]
/files/etc/network/interfaces/auto[1]/1 = "lo"
/files/etc/network/interfaces/auto[2]
/files/etc/network/interfaces/auto[2]/1 = "eth0"

When setting it, you need to have the ''1'' node in there too:

set auto[child::1 = ''eth1'']/1 eth1
> and by the way
http://projects.puppetlabs.com/projects/puppet/wiki/Puppet_Augeas
> is the best augtool documentation I found -- more in depth than the
> quick tour on the augtool site.
Yep, the quick tour is limited.  The wiki has some very useful info
hidden on it about constructing expressions, in particular:

http://augeas.net/page/Path_expressions
http://augeas.net/docs/tree.html

There isn''t much specific to augtool as it mirrors the API itself.

What you might find useful is a new book that Raphaël Pinson''s been
working on, which starts explaining it from the beginning - it''s still
work in progress though.

https://github.com/raphink/Augeas-book/
(you''ll need to clone and ''make'' it)

Lastly, there are a few of us in #augeas on Freenode who can lend you a
hand with expressions if you get stuck.

-- 
Dominic Cleal
Red Hat Consulting
m: +44 (0)7818 512168

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On 13/04/11 12:38, Dominic Cleal wrote:
> What you might find useful is a new book that Raphaël Pinson''s
been
> working on, which starts explaining it from the beginning - it''s
still
> work in progress though.
> 
> https://github.com/raphink/Augeas-book/
> (you''ll need to clone and ''make'' it)
Correction, Raphaël''s got a PDF up here for easy reading:
http://r.pinson.free.fr/augeas/augeas-book.pdf

-- 
Dominic Cleal
Red Hat Consulting
m: +44 (0)7818 512168

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just asan informational note, look at the manifest I attached.  I''m 
using it to add tunl0 devices.



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