expose healthz port or something for health check

[alin04]

No description provided.

[ireinhart]

Hello,

we are trying to use the amppackager for our site. Is it possible to add a small health check endpoint? We like to monitor the service and use the kubernetes livenessProbe.

[alin04]

Yes, that was the idea - to support containers like kubernetes and Docker.

The thought is to check the cert cache is healthy and the rtv cache is up-to-date.

We probably won't be able to address this for another month or so. Feel free to submit a PR.

[FranGM]

Hey, since this issues seems to be in progress I thought I'd ask what's the status/ETA on this?

If we know when to expect (or don't expect) the health check endpoint to be available we can make a decision on how to work around it or not.

[Gregable]

I picked this up during a Fixit week we had ~2 months ago, but was interrupted and did not make much progress. It has languished since.

@twifkak @banaag do you think a basic health check could be prioritized in the near future? The main things to verify are probably that reading the toml didn't fail, we have a valid certificate, and OCSP response.

[banaag]

How soon is this needed? I'm ok to pick this up after I'm done with the cert related items I'm working on.

[Gregable]

I don't have a particular deadline in mind. @FranGM what would be a useful timeline for you to avoid having to work around this?

[FranGM]

I think we're looking at around 2-3 weeks for going live. Can probably live with something like a port check for dev/testing but before we get to production we'll certainly want something a tad more robust, which is why I'm trying to plan ahead a little bit.