Various improvements plus added a version command

cmd/kubeadm/app/api/types.go

@@ -64,13 +64,12 @@ type InitFlags struct {
 		Kubernetes string
 	}
 	CloudProvider string
-	Schedulable   bool
 }
 
 const (
 	DefaultServiceDNSDomain   = "cluster.local"
 	DefaultServicesCIDRString = "100.64.0.0/12" // Carrier-grade NAT range (RFC 6598)
-	DefaultKubernetesVersion  = "v1.4.0-beta.10"
+	DefaultKubernetesVersion  = "v1.4.0"
 )
 
 var (
@@ -86,15 +85,10 @@ var (
 		"rackspace",
 		"vsphere",
 	}
-	SupportedCloudProviders map[string]bool
 )
 
 func init() {
 	_, DefaultServicesCIDR, _ = net.ParseCIDR(DefaultServicesCIDRString)
-	SupportedCloudProviders = make(map[string]bool, len(ListOfCloudProviders))
-	for _, v := range ListOfCloudProviders {
-		SupportedCloudProviders[v] = true
-	}
 }
 
 // JoinFlags holds values for "kubeadm join" command flags.

cmd/kubeadm/app/cmd/cmd.go

@@ -84,6 +84,7 @@ func NewKubeadmCommand(f *cmdutil.Factory, in io.Reader, out, err io.Writer, env
 
 	cmds.AddCommand(NewCmdInit(out, s))
 	cmds.AddCommand(NewCmdJoin(out, s))
+	cmds.AddCommand(NewCmdVersion(out))
 
 	return cmds
 }

cmd/kubeadm/app/cmd/init.go

@@ -83,10 +83,6 @@ func NewCmdInit(out io.Writer, s *kubeadmapi.KubeadmConfig) *cobra.Command {
 		&s.InitFlags.CloudProvider, "cloud-provider", "",
 		`Enable cloud provider features (external load-balancers, storage, etc), e.g. "gce"`,
 	)
-	cmd.PersistentFlags().BoolVar(
-		&s.InitFlags.Schedulable, "schedule-pods-here", false,
-		`Allow to schedule workload to the node`,
-	)
 	cmd.PersistentFlags().StringVar(
 		&s.InitFlags.Versions.Kubernetes, "use-kubernetes-version", kubeadmapi.DefaultKubernetesVersion,
 		`Choose a specific Kubernetes version for the control plane`,
@@ -99,15 +95,15 @@ func NewCmdInit(out io.Writer, s *kubeadmapi.KubeadmConfig) *cobra.Command {
 	)
 	cmd.PersistentFlags().StringVar(
 		&s.InitFlags.API.Etcd.ExternalCAFile, "external-etcd-cafile", "",
-		"etcd certificate authority certificate file",
+		"etcd certificate authority certificate file. Note: The path must be in /etc/ssl/certs",
 	)
 	cmd.PersistentFlags().StringVar(
 		&s.InitFlags.API.Etcd.ExternalCertFile, "external-etcd-certfile", "",
-		"etcd client certificate file",
+		"etcd client certificate file. Note: The path must be in /etc/ssl/certs",
 	)
 	cmd.PersistentFlags().StringVar(
 		&s.InitFlags.API.Etcd.ExternalKeyFile, "external-etcd-keyfile", "",
-		"etcd client key file",
+		"etcd client key file. Note: The path must be in /etc/ssl/certs",
 	)
 
 	return cmd
@@ -136,8 +132,18 @@ func RunInit(out io.Writer, cmd *cobra.Command, args []string, s *kubeadmapi.Kub
 
 	// TODO(phase1+) create a custom flag
 	if s.InitFlags.CloudProvider != "" {
-		if _, ok := kubeadmapi.SupportedCloudProviders[s.InitFlags.CloudProvider]; !ok {
+		found := false
-			return fmt.Errorf("<cmd/init> cloud provider %q is not supported, you can use any of %v, or leave it unset", s.InitFlags.CloudProvider, kubeadmapi.ListOfCloudProviders)
+		for _, provider := range kubeadmapi.ListOfCloudProviders {
+			if provider == s.InitFlags.CloudProvider {
+				found = true
+				break
+			}
+		}
+
+		if found {
+			fmt.Printf("<cmd/init> cloud provider %q initialized for the control plane. Remember to set the same cloud provider flag on the kubelet.\n", s.InitFlags.CloudProvider)
+		} else {
+			return fmt.Errorf("<cmd/init> cloud provider %q is not supported, you can use any of %v, or leave it unset.\n", s.InitFlags.CloudProvider, kubeadmapi.ListOfCloudProviders)
 		}
 	}
 
@@ -179,7 +185,8 @@ func RunInit(out io.Writer, cmd *cobra.Command, args []string, s *kubeadmapi.Kub
 		return err
 	}
 
-	if err := kubemaster.UpdateMasterRoleLabelsAndTaints(client, s.Schedulable); err != nil {
+	schedulePodsOnMaster := false
+	if err := kubemaster.UpdateMasterRoleLabelsAndTaints(client, schedulePodsOnMaster); err != nil {
 		return err
 	}
 

cmd/kubeadm/app/cmd/version.go

@@ -0,0 +1,44 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+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 cmd
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/spf13/cobra"
+
+	cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
+	"k8s.io/kubernetes/pkg/version"
+)
+
+func NewCmdVersion(out io.Writer) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "version",
+		Short: "Print the version of kubeadm",
+		Run: func(cmd *cobra.Command, args []string) {
+			err := RunVersion(out, cmd)
+			cmdutil.CheckErr(err)
+		},
+	}
+	return cmd
+}
+
+func RunVersion(out io.Writer, cmd *cobra.Command) error {
+	fmt.Fprintf(out, "kubeadm version: %#v\n", version.Get())
+	return nil
+}

cmd/kubeadm/app/kubeadm.go

@@ -20,6 +20,7 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"runtime"
 
 	"github.com/renstrom/dedent"
 	"github.com/spf13/pflag"
@@ -46,7 +47,7 @@ func getEnvParams() map[string]string {
 		"host_pki_path":      "/etc/kubernetes/pki",
 		"host_etcd_path":     "/var/lib/etcd",
 		"hyperkube_image":    "",
-		"discovery_image":    "dgoodwin/kubediscovery:latest", // TODO(phase1): fmt.Sprintf("gcr.io/google_containers/kube-discovery-%s:%s", runtime.GOARCH, "1.0"),
+		"discovery_image":    fmt.Sprintf("gcr.io/google_containers/kube-discovery-%s:%s", runtime.GOARCH, "1.0"),
 		"etcd_image":         "",
 		"component_loglevel": "--v=4",
 	}

cmd/kubeadm/app/master/manifests.go

@@ -220,7 +220,7 @@ func componentPod(container api.Container, volumes ...api.Volume) api.Pod {
 func getComponentCommand(component string, s *kubeadmapi.KubeadmConfig) (command []string) {
 	baseFlags := map[string][]string{
 		apiServer: {
-			"--address=127.0.0.1",
+			"--insecure-bind-address=127.0.0.1",
 			"--etcd-servers=http://127.0.0.1:2379",
 			"--admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,ResourceQuota",
 			"--service-cluster-ip-range=" + s.InitFlags.Services.CIDR.String(),
@@ -233,7 +233,7 @@ func getComponentCommand(component string, s *kubeadmapi.KubeadmConfig) (command
 			"--allow-privileged",
 		},
 		controllerManager: {
-			// TODO(phase1+): consider adding --address=127.0.0.1 in order to not expose the cm port to the rest of the world
+			"--address=127.0.0.1",
 			"--leader-elect",
 			"--master=127.0.0.1:8080",
 			"--cluster-name=" + DefaultClusterName,
@@ -244,7 +244,7 @@ func getComponentCommand(component string, s *kubeadmapi.KubeadmConfig) (command
 			"--insecure-experimental-approve-all-kubelet-csrs-for-group=system:kubelet-bootstrap",
 		},
 		scheduler: {
-			// TODO(phase1+): consider adding --address=127.0.0.1 in order to not expose the scheduler port to the rest of the world
+			"--address=127.0.0.1",
 			"--leader-elect",
 			"--master=127.0.0.1:8080",
 		},

hack/lib/golang.sh

@@ -35,6 +35,7 @@ kube::golang::server_targets() {
     cmd/kube-apiserver
     cmd/kube-controller-manager
     cmd/kubelet
+    cmd/kubeadm
     cmd/kubemark
     cmd/hyperkube
     plugin/cmd/kube-scheduler