Add KV datastore

Signed-off-by: Emile Vauge <emile@vauge.com>

provider/boltdb.go

@@ -8,6 +8,8 @@ import (
 	"github.com/docker/libkv/store/boltdb"
 )
 
+var _ Provider = (*BoltDb)(nil)
+
 // BoltDb holds configurations of the BoltDb provider.
 type BoltDb struct {
 	Kv `mapstructure:",squash"`

provider/consul.go

@@ -8,6 +8,8 @@ import (
 	"github.com/docker/libkv/store/consul"
 )
 
+var _ Provider = (*Consul)(nil)
+
 // Consul holds configurations of the Consul provider.
 type Consul struct {
 	Kv `mapstructure:",squash"`

provider/consul_catalog.go

@@ -24,6 +24,8 @@ const (
 	DefaultConsulCatalogTagPrefix = "traefik"
 )
 
+var _ Provider = (*ConsulCatalog)(nil)
+
 // ConsulCatalog holds configurations of the Consul catalog provider.
 type ConsulCatalog struct {
 	BaseProvider `mapstructure:",squash"`

provider/docker.go

@@ -40,6 +40,8 @@ const (
 	SwarmDefaultWatchTime = 15 * time.Second
 )
 
+var _ Provider = (*Docker)(nil)
+
 // Docker holds configurations of the Docker provider.
 type Docker struct {
 	BaseProvider     `mapstructure:",squash"`

provider/etcd.go

@@ -8,6 +8,8 @@ import (
 	"github.com/docker/libkv/store/etcd"
 )
 
+var _ Provider = (*Etcd)(nil)
+
 // Etcd holds configurations of the Etcd provider.
 type Etcd struct {
 	Kv `mapstructure:",squash"`

provider/file.go

@@ -12,6 +12,8 @@ import (
 	"gopkg.in/fsnotify.v1"
 )
 
+var _ Provider = (*File)(nil)
+
 // File holds configurations of the File provider.
 type File struct {
 	BaseProvider `mapstructure:",squash"`

provider/kubernetes.go

@@ -50,6 +50,8 @@ func (ns *Namespaces) SetValue(val interface{}) {
 	*ns = Namespaces(val.(Namespaces))
 }
 
+var _ Provider = (*Kubernetes)(nil)
+
 // Kubernetes holds configurations of the Kubernetes provider.
 type Kubernetes struct {
 	BaseProvider           `mapstructure:",squash"`

provider/marathon.go

@@ -21,6 +21,8 @@ import (
 	"github.com/gambol99/go-marathon"
 )
 
+var _ Provider = (*Marathon)(nil)
+
 // Marathon holds configuration of the Marathon provider.
 type Marathon struct {
 	BaseProvider

provider/mesos.go

@@ -24,6 +24,8 @@ import (
 	"time"
 )
 
+var _ Provider = (*Mesos)(nil)
+
 //Mesos holds configuration of the mesos provider.
 type Mesos struct {
 	BaseProvider

provider/zk.go

@@ -8,6 +8,8 @@ import (
 	"github.com/docker/libkv/store/zookeeper"
 )
 
+var _ Provider = (*Zookepper)(nil)
+
 // Zookepper holds configurations of the Zookepper provider.
 type Zookepper struct {
 	Kv `mapstructure:",squash"`