[influxdb] Telegraf Exec Module No Result with Sudo Command

[t***@gmail.com]

Hi,

I am attempting to setup an exec module to execute a script under another user. Unfortunately I have no other solution because this other user has the necessary credentials configured, and I cannot use telegraph user to run the script directly.

Here is what I currently have:

actual_script.py
actual_script_wrapper.sh
output_file

And the exec module is configured as below:

[[inputs.exec]]
command = "/opt/actual_script_wrapper.sh"
interval = "5m"
data_format = "influx"

The actual script saves the output that I wish to be returned to Telegraf, and in the wrapper script, I have:

/bin/echo "" > /opt/output_file
/bin/chmod 666 /opt/output_file
/usr/bin/sudo -u actual_user /opt/actual_script.py
/bin/cat /opt/output_file

All permissions and SUDOer file is configured. This also executes successfully when I ran the test:

sudo -u telegraf telegraf --config-directory=/etc/telegraf --test --input-filter=exec

However, when executing from the telegraf service the output_file is always empty, which seemed to me that the actual_script is not being executed.

Has anyone tried to do something similar? If anyone can provide any insight it would be very much appreciated.

Thanks.