unbound v1.6.0 python module on debian 9

George Thessalonikefs george at nlnetlabs.nl
Wed Oct 24 12:38:00 UTC 2018


Hi Christopher,

What is the error you are getting from unbound?
Can you share some bits of your configuration file? I am mainly
interested in the following options:
  chroot:
  directory:
  module-config:
  python-script:

-- George

On 24/10/2018 14:29, Christopher Hearn via Unbound-users wrote:
> Thanks for the reply George.  When I run what you suggested, I see
> /usr/lib/python2.7/dist-packages, and the unboundmodule.py is indeed in
> there.  If I run my python script on it’s own from my shell, it works
> fine.  unbound itself still does not see it, nor any of the other
> dependencies in that directory.  Any idea why this might be?
> 
>> On Oct 24, 2018, at 6:00 AM, unbound-users-request at nlnetlabs.nl
>> <mailto:unbound-users-request at nlnetlabs.nl> wrote:
>>
>> Date: Tue, 23 Oct 2018 18:13:23 +0200
>> From: George Thessalonikefs <george at nlnetlabs.nl
>> <mailto:george at nlnetlabs.nl>>
>> To: unbound-users at nlnetlabs.nl <mailto:unbound-users at nlnetlabs.nl>
>> Subject: Re: unbound v1.6.0 python module on debian 9
>> Message-ID: <014e436d-11f6-3ce5-e488-011e8d2601a6 at nlnetlabs.nl
>> <mailto:014e436d-11f6-3ce5-e488-011e8d2601a6 at nlnetlabs.nl>>
>> Content-Type: text/plain; charset=utf-8
>>
>> Hi Christopher,
>>
>> On 23/10/2018 17:24, Christopher Hearn via Unbound-users wrote:
>>> I?m trying to set up a server running unbound and a python script.
>>>  This is working OK on an older server running version 1.4.2.  On the
>>> newer one, I can?t seem to get unbound to see the python script
>>> dependencies.  I do recall on the old server, this was because chroot
>>> was enabled.  Once I disabled it in the config file via chroot: ??,
>>> it was fine.  It?s disabled on the new one too, but still doesn?t
>>> seem to help.  If I symlink the requested file from
>>> /usr/lib/python2.7/dist-packages/unboundpython.py to /etc/unbound/,
>>> that resolves that error, but more come up because of course it can?t
>>> see the other libraries.  This leads me to believe that unbound isn?t
>>> looking out of /etc/unbound/ even though chroot is disabled.  Is
>>> there something else I?m missing?
>>>
>>
>> I am assuming that you want to use a python script with unbound's python
>> module.
>>
>> I see that when initializing the python module, unbound appends to the
>> sys path also the directory reported by Python as the
>> "platform-dependent include directory" [1].
>>
>> You can find that directory by starting up the Python interpreter (the
>> same that unbound will also use; in case of Python virtual environments)
>> and typing:
>> >> import distutils.sysconfig
>> >> distutils.sysconfig.get_python_lib(1,0)
>> '/usr/local/lib/python2.7/site-packages' (in my case)
>>
>> As a side note you can also achieve the same with chroot enabled but
>> then you would need to link the same python directory structure inside
>> the chroot in order for unbound to find the libraries.
>>
>> [1]
>> https://docs.python.org/3.7/distutils/apiref.html?highlight=get_python_lib#distutils.sysconfig.get_python_lib
>>
>> -- George
> 



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