Constraints on Consul Catalog not working as expected

[ummecasino]

Hey guys,

I'm currently switching from reverse proxying with Nginx/consul-template to Traefik. I'm facing some problems with seperating different environments in Consul by different tags as I used to with consul-template.
I got 2 environments managed by the same consul instance, so I got service A deployed on environment QA and integration visible as Consul service.

[
    {
        "Address": "10.32.108.37",
        "CreateIndex": 28,
        "ModifyIndex": 4992,
        "Node": "int02",
        "ServiceAddress": "10.32.108.37",
        "ServiceEnableTagOverride": false,
        "ServiceID": "int02:mesos-20160919:80",
        "ServiceName": "tracking",
        "ServicePort": 31440,
        "ServiceTags": [
            "integration"
        ],
        "TaggedAddresses": {
            "lan": "10.32.108.37",
            "wan": "10.32.108.37"
        }
    },
    {
        "Address": "10.32.108.33",
        "CreateIndex": 2463,
        "ModifyIndex": 5045,
        "Node": "test01",
        "ServiceAddress": "10.32.108.33",
        "ServiceEnableTagOverride": false,
        "ServiceID": "test01:mesos-20160919:80",
        "ServiceName": "tracking",
        "ServicePort": 31276,
        "ServiceTags": [
            "traefik.tags=testenv",
            "test",
            "traefik.frontend.rule=PathPrefix:/tracking;PathPrefixStrip:/tracking"
        ],
        "TaggedAddresses": {
            "lan": "10.32.108.33",
            "wan": "10.32.108.33"
        }
    }
]

You see both services got different tags. I set up my Traefik instance with

[consulCatalog]
  endpoint = "127.0.0.1:8500"
  watch = true
  constraints = ["tag==testenv"]

and would expect just to see the second service instance in Traefik but I still see all my services known to consul including the first service shown here.
Am I wrong? What would I have to do to make all services by an environment routable by just the corresponding Traefik instance on that environment?

[ummecasino]

Figured it out thanks to #451, the solution is to put it like:

  [[consulCatalog.constraints]]
    key = "tag"
    mustmatch = true
    regex = "testenv"

[emilevauge]

@ummecasino constraints have been fixed in v1.1.0-rc1, you should now be able to write constraints = ["tag==testenv"] directly ;)