Epic Goal

Technical Debt:

• k8s probes (startup, live/ready) are vital for resilience, to detect and remedy problematic operational states
• The goal of this epic is to ensure all MicroShift pods have the necessary probes, matching k8s best practises for probes

Why is this important?

• Missing/Wrong probes can lead to missing failures, frequent crashes/restarts of pods

Acceptance Criteria

• All pods/containers have at least ready/health probes, with good configurations regarding timeouts etc.
• Probes are following best practises:
  • cheap and easy - no expensive bash commands 
  • quick - probes should respond <0.5 seconds
  • side effect free - probes should not modify the state 
  • .... 

Previous Work (Optional):

1. I did just a few samples and found pods/containers with either no probes at all (e.g. topolvm-node) or probes which smell expensive / with side effects (e.g. ovnkube-master pod)

Open questions::

1. …

Done Checklist

• Do a spike to review ALL pods/containers for their probes. Create Tasks to fix them
• Provide dev doc on best practises to adhere to
• Fix missing/bad probes
• No CI needed, No external Docs needed, No QE needed.