Client times out

[sprice]

When I run the sabayon command it updates the ACME_KEY and ACME_TOKEN config vars of my production app, thus restarting it.

Then it tries to validate against the validation URL, but the app is restarting and sabayon times out.

[dmathieu]

"times out"? There is no timeout when running one-off dynos (except the 24 hours cycling).
What exact errors are you getting?

[sprice]

host could not be reached (since it was restarting). Sorry the exact message is gone from my history.

I updated line 76 of main.go to be time.Sleep(40 * time.Second) and things are good now

[sprice]

To be clear, my production app could not be reached.

[dmathieu]

If your app takes longer than 20 seconds to boot, that could indeed cause issues.
Long boot times also means you have downtime every time your app restarts though, which will give you further issues. I think your app's boot time is what should be fixed here.

[sprice]

Agreed on needing to boot faster.

That being said I'd also like to use Heroku preboot. I believe this would need to wait ~3-5 minutes for it to work with preboot.

Would you accept a pull request that takes a custom sleep time?

[dmathieu]

Sure. When adding it to app.json, could you add a mention about long boot time and the risk of H12s in the description?

[sprice]

Sounds good. Time to learn some Go :)

[apeckham]

We had this problem today: We used preboot, so env vars take ~3 minutes to update. When Sabayon checked .well-known/acme-challenge/... it got a 404. Decided to turn off preboot for now so we can use Sabayon.

[sprice]

@apeckham set RESTART_WAIT_TIME to 300 (5 mins)