Variable ansible_python_interpreter ignored?

[Marco Corte]

Hi all.

I am very new to Ansible and installed version 1.5 yesterday on Arch Linux using the package provided by the distribution.

I started trying to connect to a solaris node that has /usr/bin/python, I tried to set a variable in the "hosts" inventory:

goast06 ansible_python_interpreter=/usr/bin/python

But launching a simple ping, this setting seems to be ignored (the ping is successful since I made a symlink python2 -> python)

# ansible -k -vvvv goast06 -m ping
SSH password:
<goast06> ESTABLISH CONNECTION FOR USER: root
<goast06> REMOTE_MODULE ping
<goast06> EXEC ['sshpass', '-d6', 'ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/root/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'Port=22', '-o', 'GSSAPIAuthentication=no', '-o', 'PubkeyAuthentication=no', '-o', 'ConnectTimeout=10', 'goast06', "/bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1393920144.19-66127382946581 && echo $HOME/.ansible/tmp/ansible-tmp-1393920144.19-66127382946581'"]
<goast06> PUT /tmp/tmpC2ljll TO //.ansible/tmp/ansible-tmp-1393920144.19-66127382946581/ping
<goast06> EXEC ['sshpass', '-d6', 'ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/root/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'Port=22', '-o', 'GSSAPIAuthentication=no', '-o', 'PubkeyAuthentication=no', '-o', 'ConnectTimeout=10', 'goast06', "/bin/sh -c '/usr/bin/python2 //.ansible/tmp/ansible-tmp-1393920144.19-66127382946581/ping; rm -rf //.ansible/tmp/ansible-tmp-1393920144.19-66127382946581/ >/dev/null 2>&1'"]
goast06 | success >> {
    "changed": false,
    "ping": "pong"
}

I never tried the feature before, so I am not sure where to start for a debug.

What am I doing wrong? Could this be an issue in the Arch Linux package?

Thank you

[Michael DeHaan]

This looks like you might have ansible_python_interpreterer set to /usr/bin/python2 somewhere else in the system, or else, the maintainer of your package applied a nasty patch that hardcoded /usr/bin/python2 at the top of the file in the source to the ping module.

They should not do this because you can set ansible_python_interpreter on a per host basis, and this would mean that Arch installs could only manage Arch, which would be very wrong.

Can you look at the source in library/system/ping and tell me what the top (shebang) line is?

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[Marco Corte]

Yes, it is hardcoded in the first line

% head /usr/share/ansible/system/ping




gives



#!/usr/bin/python2
# -*- coding: utf-8 -*-


# (c) 2012, Michael DeHaan <michael...@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or

I will try to understand why it has been packaged this way.

Thanks

[Michael DeHaan]

Yeah this is from someone who didn't understand ansible_python_interpreter.

It would be best to file a bug with the package and get it reverted as this will be confusing if you had an Arch machine managing any non-Arch machines.

You'd have to set ansible_python2_interpreter, which isn't something we want to have to explain :)

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[Mehul Ved]

On Tue, Mar 4, 2014 at 3:53 PM, Marco Corte <marc...@gmail.com> wrote:
> Yes, it is hardcoded in the first line
>
> % head /usr/share/ansible/system/ping
>
> gives
>
> #!/usr/bin/python2
> # -*- coding: utf-8 -*-
>
>
> # (c) 2012, Michael DeHaan <michael...@gmail.com>
> #
> # This file is part of Ansible
> #
> # Ansible is free software: you can redistribute it and/or modify
> # it under the terms of the GNU General Public License as published by
> # the Free Software Foundation, either version 3 of the License, or
>
> I will try to understand why it has been packaged this way.
>
> Thanks

I've seen this issue with quite a few python packages from AUR. That's
why I prefer to go with virtualenv and install packages using pip.
That's how I have installed ansible on my system and I don't need to
bother with such modifications.

[Marco Corte]

I post it here only to state that there was nothing wrong with ansible 1.5 :-)

I created a bug for the Arch Linux community package "ansible-1.5" some days ago. I also wrote about a solution that works for me.
Let's wait for the package mantainer.

Thank you Michael for your right guess!

[Marco Corte]

The bug in the Archlinux package has been fixed.

[Michael DeHaan]

Excellent, thank you!

On Tue, Mar 18, 2014 at 2:42 PM, Marco Corte <marc...@gmail.com> wrote:

The bug in the Archlinux package has been fixed.

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