Is this logged once, or for every container? If it's once, then `Warn` would be fine as well

Micro-nit (if you'll be pushing again); looks like this one ended up separate from the other imports below

If we _do_ want to add some words around it, perhaps something like; ```suggestion v.Warnings = append(v.Warnings, "WARNING: DOCKER_INSECURE_NO_IPTABLES_RAW is set") ``` ```suggestion v.Warnings = append(v.Warnings, "WARNING: raw iptables rules are skipped because DOCKER_INSECURE_NO_IPTABLES_RAW is set") ``` The 'DOCKER_INSECURE_NO_IPTABLES_RAW is set` may be slightly nicer to indicate what's the case, but not sure about the "raw iptable rules are skipped", not sure if that's providing much context on its own.