Revert commit 9dc3a661d7

cmd/kubeadm/app/cmd/BUILD

@@ -29,6 +29,7 @@ go_library(
         "//cmd/kubeadm/app/discovery:go_default_library",
         "//cmd/kubeadm/app/features:go_default_library",
         "//cmd/kubeadm/app/images:go_default_library",
+        "//cmd/kubeadm/app/node:go_default_library",
         "//cmd/kubeadm/app/phases/addons/dns:go_default_library",
         "//cmd/kubeadm/app/phases/addons/proxy:go_default_library",
         "//cmd/kubeadm/app/phases/apiconfig:go_default_library",

cmd/kubeadm/app/cmd/join.go

@@ -32,6 +32,7 @@ import (
 	"k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm/validation"
 	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
 	"k8s.io/kubernetes/cmd/kubeadm/app/discovery"
+	kubeadmnode "k8s.io/kubernetes/cmd/kubeadm/app/node"
 	"k8s.io/kubernetes/cmd/kubeadm/app/preflight"
 	kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
 	kubeconfigutil "k8s.io/kubernetes/cmd/kubeadm/app/util/kubeconfig"
@@ -203,7 +204,20 @@ func (j *Join) Run(out io.Writer) error {
 		return err
 	}
 
-	kubeconfigFile := filepath.Join(kubeadmconstants.KubernetesDir, kubeadmconstants.KubeletBootstrapKubeConfigFileName)
+	hostname := nodeutil.GetHostname(j.cfg.NodeName)
+
+	client, err := kubeconfigutil.KubeConfigToClientSet(cfg)
+	if err != nil {
+		return err
+	}
+	if err := kubeadmnode.ValidateAPIServer(client); err != nil {
+		return err
+	}
+	if err := kubeadmnode.PerformTLSBootstrap(cfg, hostname); err != nil {
+		return err
+	}
+
+	kubeconfigFile := filepath.Join(kubeadmconstants.KubernetesDir, kubeadmconstants.KubeletKubeConfigFileName)
 	if err := kubeconfigutil.WriteToDisk(kubeconfigFile, cfg); err != nil {
 		return err
 	}

cmd/kubeadm/app/node/BUILD

@@ -8,10 +8,18 @@ load(
 
 go_library(
     name = "go_default_library",
-    srcs = ["validate.go"],
+    srcs = [
+        "csr.go",
+        "validate.go",
+    ],
     deps = [
+        "//cmd/kubeadm/app/util/kubeconfig:go_default_library",
+        "//pkg/kubelet/util/csr:go_default_library",
         "//vendor/k8s.io/api/certificates/v1beta1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
         "//vendor/k8s.io/client-go/kubernetes:go_default_library",
+        "//vendor/k8s.io/client-go/tools/clientcmd/api:go_default_library",
+        "//vendor/k8s.io/client-go/util/cert:go_default_library",
     ],
 )
 

cmd/kubeadm/app/node/csr.go

@@ -0,0 +1,61 @@
+/*
+Copyright 2016 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 node
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/types"
+	clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
+	certutil "k8s.io/client-go/util/cert"
+	kubeconfigutil "k8s.io/kubernetes/cmd/kubeadm/app/util/kubeconfig"
+	"k8s.io/kubernetes/pkg/kubelet/util/csr"
+)
+
+const CSRContextAndUser = "kubelet-csr"
+
+// PerformTLSBootstrap executes a node certificate signing request.
+func PerformTLSBootstrap(cfg *clientcmdapi.Config, hostName string) error {
+	client, err := kubeconfigutil.KubeConfigToClientSet(cfg)
+	if err != nil {
+		return err
+	}
+
+	fmt.Println("[csr] Created API client to obtain unique certificate for this node, generating keys and certificate signing request")
+
+	key, err := certutil.MakeEllipticPrivateKeyPEM()
+	if err != nil {
+		return fmt.Errorf("failed to generate private key [%v]", err)
+	}
+
+	cert, err := csr.RequestNodeCertificate(client.CertificatesV1beta1().CertificateSigningRequests(), key, types.NodeName(hostName))
+	if err != nil {
+		return fmt.Errorf("failed to request signed certificate from the API server [%v]", err)
+	}
+	fmt.Println("[csr] Received signed certificate from the API server, generating KubeConfig...")
+
+	cfg.AuthInfos[CSRContextAndUser] = &clientcmdapi.AuthInfo{
+		ClientKeyData:         key,
+		ClientCertificateData: cert,
+	}
+	cfg.Contexts[CSRContextAndUser] = &clientcmdapi.Context{
+		AuthInfo: CSRContextAndUser,
+		Cluster:  cfg.Contexts[cfg.CurrentContext].Cluster,
+	}
+	cfg.CurrentContext = CSRContextAndUser
+	return nil
+}

hack/.golint_failures

@@ -17,6 +17,7 @@ cmd/kubeadm/app/discovery
 cmd/kubeadm/app/discovery/file
 cmd/kubeadm/app/discovery/token
 cmd/kubeadm/app/images
+cmd/kubeadm/app/node
 cmd/kubeadm/app/phases/certs/pkiutil
 cmd/kubeadm/app/preflight
 cmd/kubeadm/app/util