[WIP] Use HTTP probes for Ray readiness and liviness probes #2360
+21
−45
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Why are these changes needed?
HTTP probes are considered lighter-weight than exec probes. However, exec probes have the advantage of doing multiple health checks. In KubeRay, we use exec probes to execute "wget" commands against multiple endpoints. Use of exec probes seems to be causing some issues, as shown in #2264 and from KubeRay scalability testing.
This PR explores using HTTP probes instead. This PR needs more consideration as using HTTP probes means we can only health check 1 end point per probe. Marking WIP for now until that quesiton is resolved.
Related issue number
Checks