Remove etcd requests (#25)

update glide

pkg/cluster/cluster.go

@@ -11,8 +11,6 @@ import (
 	"sync"
 
 	"github.com/Sirupsen/logrus"
-	etcdclient "github.com/coreos/etcd/client"
-	"golang.org/x/net/context"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/pkg/api"
 	"k8s.io/client-go/pkg/api/v1"
@@ -38,7 +36,6 @@ var (
 type Config struct {
 	KubeClient          *kubernetes.Clientset //TODO: move clients to the better place?
 	RestClient          *rest.RESTClient
-	EtcdClient          etcdclient.KeysAPI
 	TeamsAPIClient      *teams.API
 	OpConfig            config.Config
 	InfrastructureRoles map[string]spec.PgUser // inherited from the controller
@@ -146,22 +143,6 @@ func (c *Cluster) initUsers() error {
 	return nil
 }
 
-func (c *Cluster) etcdKeyExists(keyName string) (bool, error) {
-	options := etcdclient.GetOptions{}
-	resp, err := c.EtcdClient.Get(context.Background(), keyName, &options)
-	if err != nil {
-		etcdErr, ok := err.(etcdclient.Error)
-		if !ok {
-			return false, err
-		}
-		if etcdErr.Code == etcdclient.ErrorCodeKeyNotFound {
-			return false, nil
-		}
-	}
-
-	return resp != nil, err
-}
-
 func (c *Cluster) Create(stopCh <-chan struct{}) error {
 	c.mu.Lock()
 	defer c.mu.Unlock()
@@ -182,13 +163,6 @@ func (c *Cluster) Create(stopCh <-chan struct{}) error {
 
 	c.setStatus(spec.ClusterStatusCreating)
 
-	keyExist, err := c.etcdKeyExists(fmt.Sprintf("/%s/%s", c.OpConfig.EtcdScope, c.Metadata.Name))
-	if err != nil {
-		c.logger.Warnf("Can't check etcd key: %s", err)
-	}
-	if keyExist {
-		c.logger.Warnf("Etcd key for the cluster already exists")
-	}
 	//TODO: service will create endpoint implicitly
 	ep, err := c.createEndpoint()
 	if err != nil {

pkg/cluster/util.go

@@ -1,11 +1,11 @@
 package cluster
 
 import (
+	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
 
-	"k8s.io/apimachinery/pkg/util/json"
 	"k8s.io/client-go/pkg/api/v1"
 	"k8s.io/client-go/pkg/apis/apps/v1beta1"
 	"k8s.io/client-go/pkg/labels"