The new Telegraf configuration in 1.3.1 has invalid regex for the url field that does not accept IP addresses.
My custom telegraf config that I am trying to migrate from has urls = ["http://10.0.0.4:8086"] which is fully functional and accepted by Telegraf, but the regex for the new configuration does not accept IP addresses and only accepts domain names.
Invalid regex is viewable here: https://github.com/vyos/vyos-1x/blob/equuleus/interface-definitions/service_monitoring_telegraf.xml.in#L96