[CONSUL][ACL] Using ACL with traefik 2.0 for configuration discovery

Traefik Traefik v2
6

I've not use the KV provider before. But I think I managed to replicate?

I got it working first try then I tried to break it by removing the root. It was okay. It updated.

I then recreated the KV(using the consul UI). But this time instead of creating the key http/services/whoami/loadbalancer/servers/0/url I created a 'folder' http/services/whoami/ I then got the:

{"level":"error","msg":"KV connection error: field not found, node: , retrying in 2.847896791s","providerName":"consul","time":"2021-04-29T16:59:10Z"}

Looking at the KV tree it looks like the provider does not handle a null value in the service name. It might be a similar issue with yours.

I could reproduce this in the routers tree also.

erroring KV tree 
curl -sq localhost:8500/v1/kv/traefik?recurse=true | jq '.[] | {key: .Key, value: .Value|@base64d}'
{
  "key": "traefik/",
  "value": "��"
}
{
  "key": "traefik/http/routers/kv/rule",
  "value": "PathPrefix(`/whoami`)"
}
{
  "key": "traefik/http/routers/kv/service",
  "value": "whoami"
}
{
  "key": "traefik/http/services/",
  "value": "��"
}
{
  "key": "traefik/http/services/whoami/",
  "value": "��"
}
{
  "key": "traefik/http/services/whoami/loadbalancer/servers/0/url",
  "value": "http://172.21.0.2"
}
OK KV tree 
curl -sq localhost:8500/v1/kv/traefik?recurse=true | jq '.[] | {key: .Key, value: .Value|@base64d}'
   {
     "key": "traefik/",
     "value": "��"
   }
   {
     "key": "traefik/http/routers/kv/rule",
     "value": "PathPrefix(`/whoami`)"
   }
   {
     "key": "traefik/http/routers/kv/service",
     "value": "whoami"
   }
   {
     "key": "traefik/http/services/whoami/loadbalancer/servers/0/url",
     "value": "http://172.21.0.2"
   }