Deploy hook failure doesn't make certbot renew command fail

[Osiris]

@_az

Yes. The only thing Certbot will do in these cases is print a warning along with its error output.

Also with --quiet enabled? B/c I recon you'd like to know something goes wrong in a cronjob.

@_az

If anybody has good ideas on improving the handling of failed hooks, we'd be happy to hear them.

Does certbot get a non-zero exit code too, when a hook fails?