Esempio n. 1
0
// PerformTLSBootstrap executes a certificate signing request with the
// provided connection details.
func PerformTLSBootstrap(cfg *clientcmdapi.Config) error {
	hostName, err := os.Hostname()
	if err != nil {
		return err
	}
	name := types.NodeName(hostName)

	rc, err := clientcmd.NewDefaultClientConfig(*cfg, nil).ClientConfig()
	if err != nil {
		return err
	}
	c, err := clientset.NewForConfig(rc)
	if err != nil {
		return err
	}
	fmt.Println("<node/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("<node/csr> failed to generating private key [%v]", err)
	}
	cert, err := csr.RequestNodeCertificate(c.Certificates().CertificateSigningRequests(), key, name)
	if err != nil {
		return fmt.Errorf("<node/csr> failed to request signed certificate from the API server [%v]", err)
	}
	fmtCert, err := certutil.FormatBytesCert(cert)
	if err != nil {
		return fmt.Errorf("<node/csr> failed to format certificate [%v]", err)
	}
	fmt.Printf("<node/csr> received signed certificate from the API server:\n%s\n", fmtCert)
	fmt.Println("<node/csr> generating kubelet configuration")

	cfg.AuthInfos["kubelet"] = &clientcmdapi.AuthInfo{
		ClientKeyData:         key,
		ClientCertificateData: []byte(fmtCert),
	}
	cfg.Contexts["kubelet"] = &clientcmdapi.Context{
		AuthInfo: "kubelet",
		Cluster:  cfg.Contexts[cfg.CurrentContext].Cluster,
	}
	cfg.CurrentContext = "kubelet"
	return nil
}
Esempio n. 2
0
// minikubeConfig returns a config that reasonably approximates a localkube cluster
func minikubeConfig(config *api.Config) {
	// cluster
	clusterName := "minikube"
	cluster := api.NewCluster()
	cluster.Server = "https://192.168.99.100:" + strconv.Itoa(constants.APIServerPort)
	cluster.CertificateAuthority = "/home/tux/.minikube/apiserver.crt"
	config.Clusters[clusterName] = cluster

	// user
	userName := "******"
	user := api.NewAuthInfo()
	user.ClientCertificate = "/home/tux/.minikube/apiserver.crt"
	user.ClientKey = "/home/tux/.minikube/apiserver.key"
	config.AuthInfos[userName] = user

	// context
	contextName := "minikube"
	context := api.NewContext()
	context.Cluster = clusterName
	context.AuthInfo = userName
	config.Contexts[contextName] = context

	config.CurrentContext = contextName
}