Re: Logging debug & error messages to file

Hi Uri,

On 12/01/2019 11.34, אורי wrote:
> I'm trying to log debug & error messages to a file. But I receive this
> exception on the server:
>
> ValueError: Unable to configure handler 'file': [Errno 13] Permission
> denied: '/var/log/speedy_net_django.log'
>

The user running django does not have write access to '/var/log'. This
is a good thing. You could give the user running django write access to
'/var/log' or run django as another user, but I definitely wouldn't
recommend that.

> If I change the path to '/tmp/speedy_net_django.log' then it works.
>

That's because every user on the system has write access to '/tmp'.

> How do I configure the server to write messages
> to '/var/log/speedy_net_django.log'? We use Ubuntu and nginx.
>

You could create a directory under '/var/log', eg. '/var/log/speedy_net'
and give the user/group your running django as write access to that
directory and write your logs to '/var/log/speedy_net/django.log'.

> Our logging settings:
> https://github.com/speedy-net/speedy-net/blob/staging/speedy/core/settings/base.py
>
> By the way, are there friendlier ways to view logging messages than with
> text files?
>

Yes indeed. A much better solution would be to use the log system
already available on the system (eg. syslog or journald).

That way you don't have to deal with rotating log files (not sure if
djangos file logger handles that though) and permission problems.

Something like this might be useful:

https://www.simonkrueger.com/2015/05/27/logging-django-apps-to-syslog.html

Kind regards,

Kasper Laudrup

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