Log the chosen provider on startup for clarity

cloud/provider.go

@@ -147,6 +147,7 @@ func (*CustomProvider) QuerySQL(query string) ([]byte, error) {
 // NewProvider looks at the nodespec or provider metadata server to decide which provider to instantiate.
 func NewProvider(clientset *kubernetes.Clientset, apiKey string) (Provider, error) {
 	if metadata.OnGCE() {
+		log.Print("metadata reports we are in GCE")
 		if apiKey == "" {
 			return nil, fmt.Errorf("Supply a GCP Key to start getting data")
 		}
@@ -161,10 +162,12 @@ func NewProvider(clientset *kubernetes.Clientset, apiKey string) (Provider, erro
 	}
 	provider := strings.ToLower(nodes.Items[0].Spec.ProviderID)
 	if strings.HasPrefix(provider, "aws") {
+		log.Print("Found ProviderID starting with \"aws\", using AWS Provider")
 		return &AWS{
 			Clientset: clientset,
 		}, nil
 	} else if strings.HasPrefix(provider, "azure") {
+		log.Print("Found ProviderID starting with \"azure\", using Azure Provider")
 		return &Azure{
 			CustomProvider: &CustomProvider{
 				Clientset: clientset,