K8s probes

[6aKa]

Add default routes and controllers for /startup, /liveness, /readiness. And some top level functions for control liveness/readiness state (ex app.liveness(true), app.readiness(false)).

[jberger]

These would make an excellent plugin. I don't believe they would be a good fit for core.

[6aKa]

Plugin bad for this. For example I have plugin for redis, and I need set readiness for false when redis down.
When this logic (probe endpoints) realised as plugin I get problem:

1. How I can check that the probe plugin enabled from redis plugin?

If probes work globally and enabled const app = mojo({probes: true}); I can write something like this in my redis plugin

// When redis down
if (app.probesEnabled === true) {
   app.readiness(false);
}

And I can't understand how I can check server liveness from plugin:

1. How I can check that all workers live? and not hungup?

[kraih]

Definitely looks like something that should be implemented as a plugin.