Best practice proposal: readiness probes for CNFs

[tomkivlin]

Something about readiness for a CNF to receive real network traffic

• Pre-population of ARP tables
• E2e testing
• Packet capture
• Dependence on other CNFs or microservices before responding to readiness / liveness tests
• Readiness vs liveliness probes: How to set them up and when to use them in your Kubernetes cluster | Google Cloud Blog
• Configure Liveness, Readiness and Startup Probes | Kubernetes
• Rationale from cnf-testsuite: https://github.com/cncf/cnf-testsuite/blob/main/RATIONALE.md#to-test-if-there-is-a-readiness-entry-in-the-helm-chart-readiness

[taylor]

DRAFT best practice proposal started https://docs.google.com/document/d/15LZ7TnUkM_ciTC6xVKehKqs_-WriOJSdSyCJSPsPvpo/edit

note some content is copied from another best practice and will be removed

[taylor]

Another draft for liveness has been started as well https://docs.google.com/document/d/1WW_k8IUrwoVijmTIQLOyEj5a-5Y0OG5YnbCA4i-HU9Q/edit

[taylor]

These are tests in the https://github.com/cnti-testcatalog and the cnti certification. I suggest these be added.

[taylor]

Lots of docs on this. Should be a "good first issue"