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manios / docker-nagios

Docker image for Nagios Core in Alpine Linux with basic plugins, available for x86, x64 , ARM v6, ARM v7 and ARM64.
https://www.nagios.org/
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Custom Plugin Error, Python Error #20

Open Therodox opened 3 years ago

Therodox commented 3 years ago

Python3 is missing in your Image File, if I add it, Nagios can't ping clients. Google said depends on the "Lang" set in Container.

Error after adding "apk add python3"

CRITICAL - Could not interpret output from ping command

manios commented 3 years ago

Hi @Therodox ,

Thanks for using the image! Python3 is deliberately missing as this image is targetted to lightweight size and basic features. Check the README file for more information. Also, I cannot reproduce the error you mention. I have created a Dockerfile with the following contents:

FROM manios/nagios:latest

RUN apk update && apk add python3

, I created and run it and nothing happened. 

docker build -t manios/nagios:python .
docker run -d --name nagios4 -p 0.0.0.0:8080:80 manios/nagios:python

The ping plugin works as expected. Can you please provide more details and steps to reproduce the error you are having?

Thank you, Best regards, Christos

HankB commented 2 years ago

I ran into the 'missing Python3' in the container and resolved with the following commands (executed interactively in the container.)

apk update && apk add python3
ln -s /usr/bin/python3 /usr/bin/python

Python is apparently needed for "Active Checks (check_ncpa.py)" https://www.nagios.org/ncpa/getting-started.php#using-the-gui

As near as I can tell (Nagios Noob here) everything else is still working as expected. If there is further information or testing I can help with, let me know.

This is using manios/nagios:latest installed 2022-11-04 on Debian Bullseye and with Docker 20.10.5+dfsg1.

best,