Move 'pkg/standalone' package to 'pkg/kubelet/server'.

This paves the way to hyperkube for the kubelet.
2025-08-07 11:13:48 +00:00 · 2015-02-02 10:32:31 -08:00 · 2015-02-02 10:32:31 -08:00 · d96afdd645
commit d96afdd645
parent 0474c49b07
5 changed files with 101 additions and 119 deletions
--- a/cmd/integration/integration.go
+++ b/cmd/integration/integration.go
@ -40,16 +40,17 @@ import (
 	nodeControllerPkg "github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider/controller"
 	replicationControllerPkg "github.com/GoogleCloudPlatform/kubernetes/pkg/controller"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/dockertools"
+	kubeletServer "github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/server"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/volume/empty_dir"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/master"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/probe"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/service"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/standalone"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util/wait"
 	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/admission/admit"
 	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler"
+	_ "github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/algorithmprovider"
 	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/factory"

 	"github.com/coreos/go-etcd/etcd"
@ -202,13 +203,13 @@ func startComponents(manifestURL string) (apiServerURL string) {
 	// Kubelet (localhost)
 	testRootDir := makeTempDirOrDie("kubelet_integ_1.")
 	glog.Infof("Using %s as root dir for kubelet #1", testRootDir)
-	standalone.SimpleRunKubelet(cl, nil, &fakeDocker1, machineList[0], testRootDir, manifestURL, "127.0.0.1", 10250, api.NamespaceDefault, empty_dir.ProbeVolumePlugins())
+	kubeletServer.SimpleRunKubelet(cl, nil, &fakeDocker1, machineList[0], testRootDir, manifestURL, "127.0.0.1", 10250, api.NamespaceDefault, empty_dir.ProbeVolumePlugins())
 	// Kubelet (machine)
 	// Create a second kubelet so that the guestbook example's two redis slaves both
 	// have a place they can schedule.
 	testRootDir = makeTempDirOrDie("kubelet_integ_2.")
 	glog.Infof("Using %s as root dir for kubelet #2", testRootDir)
-	standalone.SimpleRunKubelet(cl, nil, &fakeDocker2, machineList[1], testRootDir, "", "127.0.0.1", 10251, api.NamespaceDefault, empty_dir.ProbeVolumePlugins())
+	kubeletServer.SimpleRunKubelet(cl, nil, &fakeDocker2, machineList[1], testRootDir, "", "127.0.0.1", 10251, api.NamespaceDefault, empty_dir.ProbeVolumePlugins())

 	return apiServer.URL
 }
--- a/cmd/kubelet/kubelet.go
+++ b/cmd/kubelet/kubelet.go
@ -30,8 +30,8 @@ import (
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/credentialprovider"
 	_ "github.com/GoogleCloudPlatform/kubernetes/pkg/healthz"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
+	kubeletServer "github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/server"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/standalone"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/version/verflag"

@ -123,14 +123,14 @@ func main() {
 		glog.Info(err)
 	}

-	client, err := standalone.GetAPIServerClient(*authPath, apiServerList)
+	client, err := kubeletServer.GetAPIServerClient(*authPath, apiServerList)
 	if err != nil && len(apiServerList) > 0 {
 		glog.Warningf("No API client: %v", err)
 	}

 	credentialprovider.SetPreferredDockercfgPath(*rootDirectory)

-	kcfg := standalone.KubeletConfig{
+	kcfg := kubeletServer.KubeletConfig{
 		Address:                 address,
 		AllowPrivileged:         *allowPrivileged,
 		HostnameOverride:        *hostnameOverride,
@ -159,7 +159,7 @@ func main() {
 		VolumePlugins:           app.ProbeVolumePlugins(),
 	}

-	standalone.RunKubelet(&kcfg)
+	kubeletServer.RunKubelet(&kcfg)
 	// runs forever
 	select {}
 }
--- a/cmd/kubernetes/kubernetes.go
+++ b/cmd/kubernetes/kubernetes.go
@ -23,14 +23,26 @@ package main
 import (
 	"fmt"
 	"net"
+	"net/http"
+	"time"

 	kubeletapp "github.com/GoogleCloudPlatform/kubernetes/cmd/kubelet/app"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/resource"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/standalone"
+	nodeControllerPkg "github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider/controller"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/controller"
+	kubeletServer "github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/server"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/master"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/service"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
+	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler"
+	_ "github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/algorithmprovider"
+	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/factory"

 	"github.com/golang/glog"
 	flag "github.com/spf13/pflag"
@ -47,15 +59,89 @@ var (
 	masterServiceNamespace = flag.String("master_service_namespace", api.NamespaceDefault, "The namespace from which the kubernetes master services should be injected into pods")
 )

+type delegateHandler struct {
+	delegate http.Handler
+}
+
+func (h *delegateHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	if h.delegate != nil {
+		h.delegate.ServeHTTP(w, req)
+		return
+	}
+	w.WriteHeader(http.StatusNotFound)
+}
+
+// RunApiServer starts an API server in a go routine.
+func runApiServer(cl *client.Client, etcdClient tools.EtcdClient, addr net.IP, port int, masterServiceNamespace string) {
+	handler := delegateHandler{}
+
+	helper, err := master.NewEtcdHelper(etcdClient, "")
+	if err != nil {
+		glog.Fatalf("Unable to get etcd helper: %v", err)
+	}
+
+	// Create a master and install handlers into mux.
+	m := master.New(&master.Config{
+		Client:     cl,
+		EtcdHelper: helper,
+		KubeletClient: &client.HTTPKubeletClient{
+			Client: http.DefaultClient,
+			Port:   10250,
+		},
+		EnableLogsSupport:    false,
+		EnableSwaggerSupport: true,
+		APIPrefix:            "/api",
+		Authorizer:           apiserver.NewAlwaysAllowAuthorizer(),
+
+		ReadWritePort:          port,
+		ReadOnlyPort:           port,
+		PublicAddress:          addr,
+		MasterServiceNamespace: masterServiceNamespace,
+	})
+	handler.delegate = m.InsecureHandler
+
+	go http.ListenAndServe(fmt.Sprintf("%s:%d", addr, port), &handler)
+}
+
+// RunScheduler starts up a scheduler in it's own goroutine
+func runScheduler(cl *client.Client) {
+	// Scheduler
+	schedulerConfigFactory := factory.NewConfigFactory(cl)
+	schedulerConfig, err := schedulerConfigFactory.Create()
+	if err != nil {
+		glog.Fatalf("Couldn't create scheduler config: %v", err)
+	}
+	scheduler.New(schedulerConfig).Run()
+}
+
+// RunControllerManager starts a controller
+func runControllerManager(machineList []string, cl *client.Client, nodeMilliCPU, nodeMemory int64) {
+	nodeResources := &api.NodeResources{
+		Capacity: api.ResourceList{
+			api.ResourceCPU:    *resource.NewMilliQuantity(nodeMilliCPU, resource.DecimalSI),
+			api.ResourceMemory: *resource.NewQuantity(nodeMemory, resource.BinarySI),
+		},
+	}
+	kubeClient := &client.HTTPKubeletClient{Client: http.DefaultClient, Port: ports.KubeletPort}
+	nodeController := nodeControllerPkg.NewNodeController(nil, "", machineList, nodeResources, cl, kubeClient)
+	nodeController.Run(10*time.Second, 10)
+
+	endpoints := service.NewEndpointController(cl)
+	go util.Forever(func() { endpoints.SyncServiceEndpoints() }, time.Second*10)
+
+	controllerManager := controller.NewReplicationManager(cl)
+	controllerManager.Run(10 * time.Second)
+}
+
 func startComponents(etcdClient tools.EtcdClient, cl *client.Client, addr net.IP, port int) {
 	machineList := []string{"localhost"}

-	standalone.RunApiServer(cl, etcdClient, addr, port, *masterServiceNamespace)
-	standalone.RunScheduler(cl)
-	standalone.RunControllerManager(machineList, cl, *nodeMilliCPU, *nodeMemory)
+	runApiServer(cl, etcdClient, addr, port, *masterServiceNamespace)
+	runScheduler(cl)
+	runControllerManager(machineList, cl, *nodeMilliCPU, *nodeMemory)

 	dockerClient := util.ConnectToDockerOrDie(*dockerEndpoint)
-	standalone.SimpleRunKubelet(cl, nil, dockerClient, machineList[0], "/tmp/kubernetes", "", "127.0.0.1", 10250, *masterServiceNamespace, kubeletapp.ProbeVolumePlugins())
+	kubeletServer.SimpleRunKubelet(cl, nil, dockerClient, machineList[0], "/tmp/kubernetes", "", "127.0.0.1", 10250, *masterServiceNamespace, kubeletapp.ProbeVolumePlugins())
 }

 func newApiClient(addr net.IP, port int) *client.Client {
--- a/pkg/kubelet/server/server.go
+++ b/pkg/kubelet/server/server.go
@ -14,51 +14,27 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */

-package standalone
+// package server makes it easy to create a kubelet server for various contexts.
+package server

 import (
 	"fmt"
 	"net"
-	"net/http"
 	"time"

-	"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/api/resource"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
-
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/clientauth"
-	nodeControllerPkg "github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider/controller"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/controller"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/credentialprovider"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/config"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/dockertools"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/volume"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/master"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
-	"github.com/GoogleCloudPlatform/kubernetes/pkg/service"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/tools"
 	"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
-	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler"
-	_ "github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/algorithmprovider"
-	"github.com/GoogleCloudPlatform/kubernetes/plugin/pkg/scheduler/factory"

 	"github.com/golang/glog"
 )

-type delegateHandler struct {
-	delegate http.Handler
-}
-
-func (h *delegateHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	if h.delegate != nil {
-		h.delegate.ServeHTTP(w, req)
-		return
-	}
-	w.WriteHeader(http.StatusNotFound)
-}
-
 // TODO: replace this with clientcmd
 func GetAPIServerClient(authPath string, apiServerList util.StringList) (*client.Client, error) {
 	authInfo, err := clientauth.LoadFromFile(authPath)
@ -88,69 +64,6 @@ func GetAPIServerClient(authPath string, apiServerList util.StringList) (*client
 	return c, nil
 }

-// RunApiServer starts an API server in a go routine.
-func RunApiServer(cl *client.Client, etcdClient tools.EtcdClient, addr net.IP, port int, masterServiceNamespace string) {
-	handler := delegateHandler{}
-
-	helper, err := master.NewEtcdHelper(etcdClient, "")
-	if err != nil {
-		glog.Fatalf("Unable to get etcd helper: %v", err)
-	}
-
-	// Create a master and install handlers into mux.
-	m := master.New(&master.Config{
-		Client:     cl,
-		EtcdHelper: helper,
-		KubeletClient: &client.HTTPKubeletClient{
-			Client: http.DefaultClient,
-			Port:   10250,
-		},
-		EnableLogsSupport:    false,
-		EnableSwaggerSupport: true,
-		EnableIndex:          true,
-		APIPrefix:            "/api",
-		Authorizer:           apiserver.NewAlwaysAllowAuthorizer(),
-
-		ReadWritePort:          port,
-		ReadOnlyPort:           port,
-		PublicAddress:          addr,
-		MasterServiceNamespace: masterServiceNamespace,
-	})
-	handler.delegate = m.InsecureHandler
-
-	go http.ListenAndServe(fmt.Sprintf("%s:%d", addr, port), &handler)
-}
-
-// RunScheduler starts up a scheduler in it's own goroutine
-func RunScheduler(cl *client.Client) {
-	// Scheduler
-	schedulerConfigFactory := factory.NewConfigFactory(cl)
-	schedulerConfig, err := schedulerConfigFactory.Create()
-	if err != nil {
-		glog.Fatalf("Couldn't create scheduler config: %v", err)
-	}
-	scheduler.New(schedulerConfig).Run()
-}
-
-// RunControllerManager starts a controller
-func RunControllerManager(machineList []string, cl *client.Client, nodeMilliCPU, nodeMemory int64) {
-	nodeResources := &api.NodeResources{
-		Capacity: api.ResourceList{
-			api.ResourceCPU:    *resource.NewMilliQuantity(nodeMilliCPU, resource.DecimalSI),
-			api.ResourceMemory: *resource.NewQuantity(nodeMemory, resource.BinarySI),
-		},
-	}
-	kubeClient := &client.HTTPKubeletClient{Client: http.DefaultClient, Port: ports.KubeletPort}
-	nodeController := nodeControllerPkg.NewNodeController(nil, "", machineList, nodeResources, cl, kubeClient)
-	nodeController.Run(10*time.Second, 10)
-
-	endpoints := service.NewEndpointController(cl)
-	go util.Forever(func() { endpoints.SyncServiceEndpoints() }, time.Second*10)
-
-	controllerManager := controller.NewReplicationManager(cl)
-	controllerManager.Run(10 * time.Second)
-}
-
 // SimpleRunKubelet is a simple way to start a Kubelet talking to dockerEndpoint, using an etcdClient.
 // Under the hood it calls RunKubelet (below)
 func SimpleRunKubelet(client *client.Client,
--- a/pkg/standalone/doc.go
+++ b/pkg/standalone/doc.go
@ -1,18 +0,0 @@
-/*
-Copyright 2014 Google Inc. All rights reserved.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-// package standalone has utilities for running different Kubernetes binaries in a single binary.
-package standalone