Munin plugin does not have access to nginx logs

Question

I want Munin to graph nginx error codes, so I tried a couple of plugins I found:

A Bash script: https://github.com/munin-monitoring/contrib/blob/master/plugins/nginx/nginx_error
A Python script: https://gist.github.com/eykd/1107061

Both of them work fine if I run them manually as root, but not if they are run by Munin. The problem seems to be that they try to access /var/log/nginx/access.log, and the user under which the plugins run does not have permission to do so.

I don't want to change permissions on /var/log/nginx or any of the log files. I tried to give the scripts the setuid bit, and they both are owned by root, but that still does not make a difference.

How can I solve this problem?

score 2 · Accepted Answer · answered Aug 14 '16 at 20:48

2

Add munin user to adm group. This is the default group which can access logfiles.

answered Aug 14 '16 at 20:48

Ipor Sircer

1,226
7
8

Thanks! I found this: http://munin-monitoring.org/wiki/faq#Q:CanImakethepluginrunasanotherusergroupthannobodynogroup, so now I can run the nginx_error plugin as root, and it works. – fulv Aug 14 '16 at 20:57

Munin plugin does not have access to nginx logs

1 Answers1