Simplify random seed initialization

There is no need to set the time zone as the result does not
depend on it

cmd/cloud-controller-manager/controller-manager.go

@@ -39,7 +39,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewCloudControllerManagerCommand()
 

cmd/hyperkube/main.go

@@ -47,7 +47,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	hyperkubeCommand, allCommandFns := NewHyperKubeCommand(server.SetupSignalHandler())
 

cmd/kube-apiserver/apiserver.go

@@ -36,7 +36,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewAPIServerCommand(server.SetupSignalHandler())
 

cmd/kube-controller-manager/controller-manager.go

@@ -39,7 +39,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewControllerManagerCommand()
 

cmd/kube-proxy/proxy.go

@@ -33,7 +33,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewProxyCommand()
 

cmd/kube-scheduler/scheduler.go

@@ -32,7 +32,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewSchedulerCommand()
 

cmd/kubectl/kubectl.go

@@ -34,7 +34,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := cmd.NewDefaultKubectlCommand()
 

cmd/kubelet/app/server.go

@@ -732,7 +732,7 @@ func run(s *options.KubeletServer, kubeDeps *kubelet.Dependencies, stopCh <-chan
 
 	utilruntime.ReallyCrash = s.ReallyCrashForTesting
 
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	// TODO(vmarmol): Do this through container config.
 	oomAdjuster := kubeDeps.OOMAdjuster

cmd/kubelet/kubelet.go

@@ -34,7 +34,7 @@ import (
 )
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := app.NewKubeletCommand(server.SetupSignalHandler())
 	logs.InitLogs()

cmd/kubemark/hollow-node.go

@@ -100,7 +100,7 @@ func (c *HollowNodeConfig) createClientConfigFromFile() (*restclient.Config, err
 }
 
 func main() {
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 
 	command := newHollowNodeCommand()
 

pkg/kubemark/controller.go

@@ -99,7 +99,7 @@ func NewKubemarkController(externalClient kubeclient.Interface, externalInformer
 			nodesToDelete:     make(map[string]bool),
 			nodesToDeleteLock: sync.Mutex{},
 		},
-		rand:                   rand.New(rand.NewSource(time.Now().UTC().UnixNano())),
+		rand:                   rand.New(rand.NewSource(time.Now().UnixNano())),
 		createNodeQueue:        make(chan string, 1000),
 		nodeGroupQueueSize:     make(map[string]int),
 		nodeGroupQueueSizeLock: sync.Mutex{},

pkg/volume/flocker/flocker_util.go

@@ -68,7 +68,7 @@ func (util *FlockerUtil) CreateVolume(c *flockerVolumeProvisioner) (datasetUUID
 	}
 
 	// select random node
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 	node := nodes[rand.Intn(len(nodes))]
 	glog.V(2).Infof("selected flocker node with UUID '%s' to provision dataset", node.UUID)
 

staging/src/k8s.io/apimachinery/pkg/util/rand/rand.go

@@ -27,7 +27,7 @@ var rng = struct {
 	sync.Mutex
 	rand *rand.Rand
 }{
-	rand: rand.New(rand.NewSource(time.Now().UTC().UnixNano())),
+	rand: rand.New(rand.NewSource(time.Now().UnixNano())),
 }
 
 // Intn generates an integer in range [0,max).

test/e2e/network/service.go

@@ -1111,7 +1111,7 @@ var _ = SIGDescribe("Services", func() {
 		}
 
 		outOfRangeNodePort := 0
-		rand.Seed(time.Now().UTC().UnixNano())
+		rand.Seed(time.Now().UnixNano())
 		for {
 			outOfRangeNodePort = 1 + rand.Intn(65535)
 			if !framework.ServiceNodePortRange.Contains(outOfRangeNodePort) {

test/e2e/storage/pd.go

@@ -79,7 +79,7 @@ var _ = utils.SIGDescribe("Pod Disks", func() {
 		host0Name = types.NodeName(nodes.Items[0].ObjectMeta.Name)
 		host1Name = types.NodeName(nodes.Items[1].ObjectMeta.Name)
 
-		mathrand.Seed(time.Now().UTC().UnixNano())
+		mathrand.Seed(time.Now().UnixNano())
 	})
 
 	Context("schedule pods each with a PD, delete pod and verify detach [Slow]", func() {

test/e2e_node/e2e_node_suite_test.go

@@ -119,7 +119,7 @@ func TestE2eNode(t *testing.T) {
 		return
 	}
 	// If run-services-mode is not specified, run test.
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 	RegisterFailHandler(Fail)
 	reporters := []Reporter{}
 	reportDir := framework.TestContext.ReportDir

test/e2e_node/runner/remote/run_remote.go

@@ -188,7 +188,7 @@ func main() {
 		glog.Fatalf("--test-suite must be one of default or conformance")
 	}
 
-	rand.Seed(time.Now().UTC().UnixNano())
+	rand.Seed(time.Now().UnixNano())
 	if *buildOnly {
 		// Build the archive and exit
 		remote.CreateTestArchive(suite, *systemSpecName)