Description

openSUSE MicroOS (and SL Micro) use 'health-check' as a way to improve robustness and prevent booting systems in an inconsistent state while running upgrades.

It would be nice to dedicate some time during hack week to develop some health-check scripts to validate K3s/RKE2 services are up. As a bonus, not only the services but perform more elaborated checks like checking the K8s API health, metrics, etc.

Goals

• Create a basic health-check script for K3s/RKE2 services running on openSUSE MicroOS/SL Micro
• Add more features if possible (check not only the service but the API health endpoints, check some metrics, pods running, etc.)

Resources

• https://www.suse.com/c/how-to-make-best-use-of-suse-linux-enterprise-micro-self-healing-capabilities/
• https://documentation.suse.com/sle-micro/5.5/html/SLE-Micro-all/cha-health-checker.html#sec-health-plugins