Add support for kubernetes in docker cli

- Add support for kubernetes for docker stack command
- Update to go 1.9
- Add kubernetes to vendors
- Print orchestrator in docker version command

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Signed-off-by: Silvin Lubecki <silvin.lubecki@docker.com>

cli/command/stack/kubernetes/client.go

@@ -0,0 +1,91 @@
+package kubernetes
+
+import (
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/client-go/discovery"
+	"k8s.io/client-go/kubernetes"
+	appsv1beta2 "k8s.io/client-go/kubernetes/typed/apps/v1beta2"
+	typesappsv1beta2 "k8s.io/client-go/kubernetes/typed/apps/v1beta2"
+	corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
+	restclient "k8s.io/client-go/rest"
+)
+
+// Factory is the kubernetes client factory
+type Factory struct {
+	namespace     string
+	config        *restclient.Config
+	coreClientSet *corev1.CoreV1Client
+	appsClientSet *appsv1beta2.AppsV1beta2Client
+}
+
+// NewFactory creates a kubernetes client factory
+func NewFactory(namespace string, config *restclient.Config) (*Factory, error) {
+	coreClientSet, err := corev1.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	appsClientSet, err := appsv1beta2.NewForConfig(config)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Factory{
+		namespace:     namespace,
+		config:        config,
+		coreClientSet: coreClientSet,
+		appsClientSet: appsClientSet,
+	}, nil
+}
+
+// RESTMapper returns a PriorityRESTMapper based on the discovered
+// groups and resources passed in.
+func (s *Factory) RESTMapper() (meta.RESTMapper, error) {
+	clientSet, err := kubernetes.NewForConfig(s.config)
+	if err != nil {
+		return nil, err
+	}
+
+	groupResources, err := discovery.GetAPIGroupResources(clientSet.DiscoveryClient)
+	if err != nil {
+		return nil, err
+	}
+	mapper := discovery.NewRESTMapper(groupResources, meta.InterfacesForUnstructured)
+
+	return mapper, nil
+}
+
+// ConfigMaps returns a client for kubernetes's config maps
+func (s *Factory) ConfigMaps() corev1.ConfigMapInterface {
+	return s.coreClientSet.ConfigMaps(s.namespace)
+}
+
+// Secrets returns a client for kubernetes's secrets
+func (s *Factory) Secrets() corev1.SecretInterface {
+	return s.coreClientSet.Secrets(s.namespace)
+}
+
+// Services returns a client for kubernetes's secrets
+func (s *Factory) Services() corev1.ServiceInterface {
+	return s.coreClientSet.Services(s.namespace)
+}
+
+// Pods returns a client for kubernetes's pods
+func (s *Factory) Pods() corev1.PodInterface {
+	return s.coreClientSet.Pods(s.namespace)
+}
+
+// Nodes returns a client for kubernetes's nodes
+func (s *Factory) Nodes() corev1.NodeInterface {
+	return s.coreClientSet.Nodes()
+}
+
+// ReplicationControllers returns a client for kubernetes replication controllers
+func (s *Factory) ReplicationControllers() corev1.ReplicationControllerInterface {
+	return s.coreClientSet.ReplicationControllers(s.namespace)
+}
+
+// ReplicaSets return a client for kubernetes replace sets
+func (s *Factory) ReplicaSets() typesappsv1beta2.ReplicaSetInterface {
+	return s.appsClientSet.ReplicaSets(s.namespace)
+}