= nil { level.Error(logger).Log("err", errors.Wrap(err, "failed to create API")) return 1 } amURL, err := extURL(logger, os.Hostname, *listenAddress, *externalURL) if err != nil { level.Error(logger).Log("msg", "failed to determine external URL", "err", err) return 1 }...
web.external-url: if you followed the Prometheus setup entirely, your Prometheus instance is running behind a reverse proxy. In this case, we are going to set the URL for the AlertManager to be externally reachable. Note that this step is optional, but if you plan on reaching the AlertManag...