Consul docker integration

Hi,

Im trying to create a docker solution to integrate kong and consul, you can check here : https://github.com/flowdopip/kong-consul

how I set the dns resolver

# dns_order = A,SRV,CNAME,LAST

# dns_resolver = 172.16.238.2:8600

when I do this i´ve get an error:

{
"message": "An unexpected error occurred"
}