Comment 3 for bug 1906991

Moving this bug back to New, as this is still occurring. While adding hw-health to a new cloud this week, I observed the same symptoms, with /var/lib/nagios is owned by root, and permissions denied errors.

Running as nagios for the cron job:

$ sudo -u nagios /usr/local/lib/nagios/plugins/cron_ipmi_sensors.py

yields:

Cannot write output file /var/lib/nagios/ipmi_sensors.out.tmp, error [Errno 13] Permission denied: '/var/lib/nagios/ipmi_sensors.out.tmp'

and after adding the file and granting permissions, re-running shows this error:

$ sudo -u nagios /usr/local/lib/nagios/plugins/cron_ipmi_sensors.py
    Traceback (most recent call last):
    File "/usr/local/lib/nagios/plugins/cron_ipmi_sensors.py", line 56, in gather_metrics
 write_output_file(output)
    File "/usr/local/lib/nagios/plugins/cron_ipmi_sensors.py", line 27, in write_output_file
 os.rename(TMP_OUTPUT_FILE, OUTPUT_FILE)
    PermissionError: [Errno 13] Permission denied: '/var/lib/nagios/ipmi_sensors.out.tmp' -> '/var/lib/nagios/ipmi_sensors.out'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
    File "/usr/local/lib/nagios/plugins/cron_ipmi_sensors.py", line 68, in <module>
 gather_metrics()
    File "/usr/local/lib/nagios/plugins/cron_ipmi_sensors.py", line 61, in gather_metrics
 write_output_file("UNKNOWN: {}".format(error))
    File "/usr/local/lib/nagios/plugins/cron_ipmi_sensors.py", line 27, in write_output_file
 os.rename(TMP_OUTPUT_FILE, OUTPUT_FILE)

the directory itself also needs write permissions, so in total as a workaround:

$ sudo touch /var/lib/nagios/ipmi_sensors.out
$ sudo touch /var/lib/nagios/ipmi_sensors.out.tmp
$ sudo chmod 777 /var/lib/nagios/ipmi_sensors*
$ sudo chmod 777 /var/lib/nagios