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kubeadm: Implement certificate download for join 

This implements the certificate download for the join process. If certificates
have been uploaded during init (or explicitly on any master node) and the secret
is still present in the cluster, the join process will try to download the secret
data, decrypting it with the provided key in the new `--certificate-key` flag.
pull/564/head
Rafael Fernández López 2019-02-14 21:18:40 +01:00
parent 74036c082a
commit d30b14d586
No known key found for this signature in database
GPG Key ID: 8902294E78418CF9
14 changed files with 238 additions and 34 deletions
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2
cmd/kubeadm/app/BUILD
View File

@ -41,6 +41,7 @@ filegroup(
"//cmd/kubeadm/app/phases/bootstraptoken/node:all-srcs",
"//cmd/kubeadm/app/phases/certs:all-srcs",
"//cmd/kubeadm/app/phases/controlplane:all-srcs",
"//cmd/kubeadm/app/phases/copycerts:all-srcs",
"//cmd/kubeadm/app/phases/etcd:all-srcs",
"//cmd/kubeadm/app/phases/kubeconfig:all-srcs",
"//cmd/kubeadm/app/phases/kubelet:all-srcs",
@ -48,7 +49,6 @@ filegroup(
"//cmd/kubeadm/app/phases/patchnode:all-srcs",
"//cmd/kubeadm/app/phases/selfhosting:all-srcs",
"//cmd/kubeadm/app/phases/upgrade:all-srcs",
"//cmd/kubeadm/app/phases/uploadcerts:all-srcs",
"//cmd/kubeadm/app/phases/uploadconfig:all-srcs",
"//cmd/kubeadm/app/preflight:all-srcs",
"//cmd/kubeadm/app/util:all-srcs",

1
cmd/kubeadm/app/apis/kubeadm/validation/validation.go
View File

@ -428,6 +428,7 @@ func isAllowedFlag(flagName string) bool {
kubeadmcmdoptions.NodeCRISocket,
kubeadmcmdoptions.KubeconfigDir,
kubeadmcmdoptions.UploadCerts,
kubeadmcmdoptions.CertificateKey,
"print-join-command", "rootfs", "v")
if knownFlags.Has(flagName) {
return true

23
cmd/kubeadm/app/cmd/join.go
View File

@ -127,6 +127,7 @@ type joinOptions struct {
controlPlane bool
ignorePreflightErrors []string
externalcfg *kubeadmapiv1beta1.JoinConfiguration
certificateKey string
}
// compile-time assert that the local data object satisfies the phases data interface.
@ -142,6 +143,7 @@ type joinData struct {
clientSets map[string]*clientset.Clientset
ignorePreflightErrors sets.String
outputWriter io.Writer
certificateKey string
}
// NewCmdJoin returns "kubeadm join" command.
@ -192,7 +194,7 @@ func NewCmdJoin(out io.Writer, joinOptions *joinOptions) *cobra.Command {
}
addJoinConfigFlags(cmd.Flags(), joinOptions.externalcfg)
addJoinOtherFlags(cmd.Flags(), &joinOptions.cfgPath, &joinOptions.ignorePreflightErrors, &joinOptions.controlPlane, &joinOptions.token)
addJoinOtherFlags(cmd.Flags(), &joinOptions.cfgPath, &joinOptions.ignorePreflightErrors, &joinOptions.controlPlane, &joinOptions.token, &joinOptions.certificateKey)
joinRunner.AppendPhase(phases.NewPreflightPhase())
joinRunner.AppendPhase(phases.NewControlPlanePreparePhase())
@ -254,7 +256,14 @@ func addJoinConfigFlags(flagSet *flag.FlagSet, cfg *kubeadmapiv1beta1.JoinConfig
}
// addJoinOtherFlags adds join flags that are not bound to a configuration file to the given flagset
func addJoinOtherFlags(flagSet *flag.FlagSet, cfgPath *string, ignorePreflightErrors *[]string, controlPlane *bool, token *string) {
func addJoinOtherFlags(
flagSet *flag.FlagSet,
cfgPath *string,
ignorePreflightErrors *[]string,
controlPlane *bool,
token *string,
certificateKey *string,
) {
flagSet.StringVar(
cfgPath, options.CfgPath, *cfgPath,
"Path to kubeadm config file.",
@ -271,6 +280,10 @@ func addJoinOtherFlags(flagSet *flag.FlagSet, cfgPath *string, ignorePreflightEr
controlPlane, options.ControlPlane, *controlPlane,
"Create a new control plane instance on this node",
)
flagSet.StringVar(
certificateKey, options.CertificateKey, "",
"Use this key to decrypt the certificate secrets uploaded by init.",
)
}
// newJoinOptions returns a struct ready for being used for creating cmd join flags.
@ -375,9 +388,15 @@ func newJoinData(cmd *cobra.Command, args []string, options *joinOptions, out io
clientSets: map[string]*clientset.Clientset{},
ignorePreflightErrors: ignorePreflightErrorsSet,
outputWriter: out,
certificateKey: options.certificateKey,
}, nil
}
// CertificateKey returns the key used to encrypt the certs.
func (j *joinData) CertificateKey() string {
return j.certificateKey
}
// Cfg returns the JoinConfiguration.
func (j *joinData) Cfg() *kubeadmapi.JoinConfiguration {
return j.cfg

3
cmd/kubeadm/app/cmd/options/constant.go
View File

@ -121,4 +121,7 @@ const (
// UploadCerts flag instruct kubeadm to upload certificates
UploadCerts = "experimental-upload-certs"
// CertificateKey flag sets the key used to encrypt and decrypt certificate secrets
CertificateKey = "certificate-key"
)

2
cmd/kubeadm/app/cmd/phases/init/BUILD
View File

@ -33,12 +33,12 @@ go_library(
"//cmd/kubeadm/app/phases/bootstraptoken/node:go_default_library",
"//cmd/kubeadm/app/phases/certs:go_default_library",
"//cmd/kubeadm/app/phases/controlplane:go_default_library",
"//cmd/kubeadm/app/phases/copycerts:go_default_library",
"//cmd/kubeadm/app/phases/etcd:go_default_library",
"//cmd/kubeadm/app/phases/kubeconfig:go_default_library",
"//cmd/kubeadm/app/phases/kubelet:go_default_library",
"//cmd/kubeadm/app/phases/markcontrolplane:go_default_library",
"//cmd/kubeadm/app/phases/patchnode:go_default_library",
"//cmd/kubeadm/app/phases/uploadcerts:go_default_library",
"//cmd/kubeadm/app/phases/uploadconfig:go_default_library",
"//cmd/kubeadm/app/preflight:go_default_library",
"//cmd/kubeadm/app/util:go_default_library",

6
cmd/kubeadm/app/cmd/phases/init/uploadcerts.go
View File

@ -26,7 +26,7 @@ import (
"k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow"
cmdutil "k8s.io/kubernetes/cmd/kubeadm/app/cmd/util"
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
"k8s.io/kubernetes/cmd/kubeadm/app/phases/uploadcerts"
"k8s.io/kubernetes/cmd/kubeadm/app/phases/copycerts"
)
// NewUploadCertsPhase returns the uploadCerts phase
@ -59,14 +59,14 @@ func runUploadCerts(c workflow.RunData) error {
}
if len(data.CertificateKey()) == 0 {
certificateKey, err := uploadcerts.CreateCertificateKey()
certificateKey, err := copycerts.CreateCertificateKey()
if err != nil {
return err
}
data.SetCertificateKey(certificateKey)
}
if err := uploadcerts.UploadCerts(client, data.Cfg(), data.CertificateKey()); err != nil {
if err := copycerts.UploadCerts(client, data.Cfg(), data.CertificateKey()); err != nil {
return errors.Wrap(err, "error uploading certs")
}
return nil

1
cmd/kubeadm/app/cmd/phases/join/BUILD
View File

@ -20,6 +20,7 @@ go_library(
"//cmd/kubeadm/app/constants:go_default_library",
"//cmd/kubeadm/app/phases/certs:go_default_library",
"//cmd/kubeadm/app/phases/controlplane:go_default_library",
"//cmd/kubeadm/app/phases/copycerts:go_default_library",
"//cmd/kubeadm/app/phases/etcd:go_default_library",
"//cmd/kubeadm/app/phases/kubeconfig:go_default_library",
"//cmd/kubeadm/app/phases/kubelet:go_default_library",

59
cmd/kubeadm/app/cmd/phases/join/controlplaneprepare.go
View File

@ -21,13 +21,17 @@ import (
"github.com/pkg/errors"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/klog"
"k8s.io/kubernetes/cmd/kubeadm/app/cmd/options"
"k8s.io/kubernetes/cmd/kubeadm/app/cmd/phases/workflow"
cmdutil "k8s.io/kubernetes/cmd/kubeadm/app/cmd/util"
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
certsphase "k8s.io/kubernetes/cmd/kubeadm/app/phases/certs"
"k8s.io/kubernetes/cmd/kubeadm/app/phases/controlplane"
"k8s.io/kubernetes/cmd/kubeadm/app/phases/copycerts"
kubeconfigphase "k8s.io/kubernetes/cmd/kubeadm/app/phases/kubeconfig"
kubeconfigutil "k8s.io/kubernetes/cmd/kubeadm/app/util/kubeconfig"
)
// NewControlPlanePreparePhase creates a kubeadm workflow phase that implements the preparation of the node to serve a control plane
@ -35,7 +39,6 @@ func NewControlPlanePreparePhase() workflow.Phase {
return workflow.Phase{
Name: "control-plane-prepare",
Short: "Prepares the machine for serving a control plane.",
Long: cmdutil.MacroCommandLongDescription,
Phases: []workflow.Phase{
{
Name: "all",
@ -43,6 +46,7 @@ func NewControlPlanePreparePhase() workflow.Phase {
InheritFlags: getControlPlanePreparePhaseFlags(),
RunAllSiblings: true,
},
newControlPlanePrepareDownloadCertsSubphase(),
newControlPlanePrepareCertsSubphase(),
newControlPlanePrepareKubeconfigSubphase(),
newControlPlanePrepareManifestsSubphases(),
@ -60,6 +64,20 @@ func getControlPlanePreparePhaseFlags() []string {
options.TokenDiscovery,
options.TokenDiscoveryCAHash,
options.TokenDiscoverySkipCAHash,
options.CertificateKey,
}
}
func newControlPlanePrepareDownloadCertsSubphase() workflow.Phase {
return workflow.Phase{
Name: "download-certs",
Short: fmt.Sprintf("Download certificates from %s", kubeadmconstants.KubeadmCertsSecret),
Long: cmdutil.MacroCommandLongDescription,
Run: runControlPlanePrepareDownloadCertsPhaseLocal,
InheritFlags: []string{
options.CfgPath,
options.CertificateKey,
},
}
}
@ -110,6 +128,33 @@ func runControlPlanePrepareManifestsSubphase(c workflow.RunData) error {
return controlplane.CreateInitStaticPodManifestFiles(kubeadmconstants.GetStaticPodDirectory(), cfg)
}
func runControlPlanePrepareDownloadCertsPhaseLocal(c workflow.RunData) error {
data, ok := c.(JoinData)
if !ok {
return errors.New("download-certs phase invoked with an invalid data struct")
}
if data.Cfg().ControlPlane == nil || len(data.CertificateKey()) == 0 {
klog.V(1).Infoln("[download-certs] Skipping certs download")
return nil
}
cfg, err := data.InitCfg()
if err != nil {
return err
}
client, err := bootstrapClient(data)
if err != nil {
return err
}
if err := copycerts.DownloadCerts(client, cfg, data.CertificateKey()); err != nil {
return errors.Wrap(err, "error downloading certs")
}
return nil
}
func runControlPlanePrepareCertsPhaseLocal(c workflow.RunData) error {
data, ok := c.(JoinData)
if !ok {
@ -157,3 +202,15 @@ func runControlPlanePrepareKubeconfigPhaseLocal(c workflow.RunData) error {
return nil
}
func bootstrapClient(data JoinData) (clientset.Interface, error) {
tlsBootstrapCfg, err := data.TLSBootstrapCfg()
if err != nil {
return nil, errors.Wrap(err, "unable to access the cluster")
}
client, err := kubeconfigutil.ToClientSet(tlsBootstrapCfg)
if err != nil {
return nil, errors.Wrap(err, "unable to access the cluster")
}
return client, nil
}

1
cmd/kubeadm/app/cmd/phases/join/data.go
View File

@ -28,6 +28,7 @@ import (
// JoinData is the interface to use for join phases.
// The "joinData" type from "cmd/join.go" must satisfy this interface.
type JoinData interface {
CertificateKey() string
Cfg() *kubeadmapi.JoinConfiguration
KubeConfigPath() string
TLSBootstrapCfg() (*clientcmdapi.Config, error)

1
cmd/kubeadm/app/cmd/phases/join/data_test.go
View File

@ -31,6 +31,7 @@ type testJoinData struct{}
// testJoinData must satisfy JoinData.
var _ JoinData = &testJoinData{}
func (j *testJoinData) CertificateKey() string { return "" }
func (j *testJoinData) Cfg() *kubeadmapi.JoinConfiguration { return nil }
func (j *testJoinData) KubeConfigPath() string { return "" }
func (j *testJoinData) TLSBootstrapCfg() (*clientcmdapi.Config, error) { return nil, nil }

17
cmd/kubeadm/app/cmd/phases/join/preflight.go
View File

@ -39,7 +39,7 @@ var (
kubeadm join phase preflight --config kubeadm-config.yml
`)
notReadyToJoinControPlaneTemp = template.Must(template.New("join").Parse(dedent.Dedent(`
notReadyToJoinControlPlaneTemp = template.Must(template.New("join").Parse(dedent.Dedent(`
One or more conditions for hosting a new control plane instance is not satisfied.
{{.Error}}
@ -105,14 +105,15 @@ func runPreflight(c workflow.RunData) error {
if j.Cfg().ControlPlane != nil {
// Checks if the cluster configuration supports
// joining a new control plane instance and if all the necessary certificates are provided
if err := checkIfReadyForAdditionalControlPlane(&initCfg.ClusterConfiguration); err != nil {
hasCertificateKey := len(j.CertificateKey()) > 0
if err := checkIfReadyForAdditionalControlPlane(&initCfg.ClusterConfiguration, hasCertificateKey); err != nil {
// outputs the not ready for hosting a new control plane instance message
ctx := map[string]string{
"Error": err.Error(),
}
var msg bytes.Buffer
notReadyToJoinControPlaneTemp.Execute(&msg, ctx)
notReadyToJoinControlPlaneTemp.Execute(&msg, ctx)
return errors.New(msg.String())
}
@ -134,15 +135,17 @@ func runPreflight(c workflow.RunData) error {
// checkIfReadyForAdditionalControlPlane ensures that the cluster is in a state that supports
// joining an additional control plane instance and if the node is ready to preflight
func checkIfReadyForAdditionalControlPlane(initConfiguration *kubeadmapi.ClusterConfiguration) error {
func checkIfReadyForAdditionalControlPlane(initConfiguration *kubeadmapi.ClusterConfiguration, hasCertificateKey bool) error {
// blocks if the cluster was created without a stable control plane endpoint
if initConfiguration.ControlPlaneEndpoint == "" {
return errors.New("unable to add a new control plane instance a cluster that doesn't have a stable controlPlaneEndpoint address")
}
// checks if the certificates that must be equal across contolplane instances are provided
if ret, err := certs.SharedCertificateExists(initConfiguration); !ret {
return err
if !hasCertificateKey {
// checks if the certificates that must be equal across controlplane instances are provided
if ret, err := certs.SharedCertificateExists(initConfiguration); !ret {
return err
}
}
return nil

9
cmd/kubeadm/app/phases/uploadcerts/BUILD → cmd/kubeadm/app/phases/copycerts/BUILD
View File

@ -2,8 +2,8 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
go_library(
name = "go_default_library",
srcs = ["uploadcerts.go"],
importpath = "k8s.io/kubernetes/cmd/kubeadm/app/phases/uploadcerts",
srcs = ["copycerts.go"],
importpath = "k8s.io/kubernetes/cmd/kubeadm/app/phases/copycerts",
visibility = ["//visibility:public"],
deps = [
"//cmd/kubeadm/app/apis/kubeadm:go_default_library",
@ -14,9 +14,12 @@ go_library(
"//pkg/apis/rbac/v1:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/api/rbac/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//staging/src/k8s.io/client-go/kubernetes:go_default_library",
"//staging/src/k8s.io/client-go/util/cert:go_default_library",
"//staging/src/k8s.io/client-go/util/keyutil:go_default_library",
"//staging/src/k8s.io/cluster-bootstrap/token/util:go_default_library",
"//vendor/github.com/pkg/errors:go_default_library",
],
@ -38,7 +41,7 @@ filegroup(
go_test(
name = "go_default_test",
srcs = ["uploadcerts_test.go"],
srcs = ["copycerts_test.go"],
embed = [":go_default_library"],
deps = [
"//cmd/kubeadm/app/apis/kubeadm:go_default_library",

85
cmd/kubeadm/app/phases/uploadcerts/uploadcerts.go → cmd/kubeadm/app/phases/copycerts/copycerts.go
View File

@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
package uploadcerts
package copycerts
import (
"encoding/hex"
@ -28,9 +28,12 @@ import (
v1 "k8s.io/api/core/v1"
rbac "k8s.io/api/rbac/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
clientset "k8s.io/client-go/kubernetes"
certutil "k8s.io/client-go/util/cert"
keyutil "k8s.io/client-go/util/keyutil"
bootstraputil "k8s.io/cluster-bootstrap/token/util"
kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
@ -92,7 +95,7 @@ func UploadCerts(client clientset.Interface, cfg *kubeadmapi.InitConfiguration,
return err
}
secretData, err := getSecretData(cfg, decodedKey)
secretData, err := getDataFromDisk(cfg, decodedKey)
if err != nil {
return err
}
@ -169,7 +172,7 @@ func loadAndEncryptCert(certPath string, key []byte) ([]byte, error) {
return cryptoutil.EncryptBytes(cert, key)
}
func certsToUpload(cfg *kubeadmapi.InitConfiguration) map[string]string {
func certsToTransfer(cfg *kubeadmapi.InitConfiguration) map[string]string {
certsDir := cfg.CertificatesDir
certs := map[string]string{
kubeadmconstants.CACertName: path.Join(certsDir, kubeadmconstants.CACertName),
@ -191,15 +194,85 @@ func certsToUpload(cfg *kubeadmapi.InitConfiguration) map[string]string {
return certs
}
func getSecretData(cfg *kubeadmapi.InitConfiguration, key []byte) (map[string][]byte, error) {
func getDataFromDisk(cfg *kubeadmapi.InitConfiguration, key []byte) (map[string][]byte, error) {
secretData := map[string][]byte{}
for certName, certPath := range certsToUpload(cfg) {
for certName, certPath := range certsToTransfer(cfg) {
cert, err := loadAndEncryptCert(certPath, key)
if err == nil || (err != nil && os.IsNotExist(err)) {
secretData[strings.Replace(certName, "/", "-", -1)] = cert
secretData[certOrKeyNameToSecretName(certName)] = cert
} else {
return nil, err
}
}
return secretData, nil
}
// DownloadCerts downloads the certificates needed to join a new control plane.
func DownloadCerts(client clientset.Interface, cfg *kubeadmapi.InitConfiguration, key string) error {
fmt.Printf("[download-certs] downloading the certificates in Secret %q in the %q Namespace\n", kubeadmconstants.KubeadmCertsSecret, metav1.NamespaceSystem)
decodedKey, err := hex.DecodeString(key)
if err != nil {
return errors.Wrap(err, "error decoding certificate key")
}
secret, err := getSecret(client)
if err != nil {
return errors.Wrap(err, "error downloading the secret")
}
secretData, err := getDataFromSecret(secret, decodedKey)
if err != nil {
return errors.Wrap(err, "error decoding secret data with provided key")
}
for certOrKeyName, certOrKeyPath := range certsToTransfer(cfg) {
certOrKeyData, found := secretData[certOrKeyNameToSecretName(certOrKeyName)]
if !found {
return errors.New("couldn't find required certificate or key in Secret")
}
if err := writeCertOrKey(certOrKeyPath, certOrKeyData); err != nil {
return err
}
}
return nil
}
func writeCertOrKey(certOrKeyPath string, certOrKeyData []byte) error {
if _, err := keyutil.ParsePublicKeysPEM(certOrKeyData); err == nil {
return keyutil.WriteKey(certOrKeyPath, certOrKeyData)
} else if _, err := certutil.ParseCertsPEM(certOrKeyData); err == nil {
return certutil.WriteCert(certOrKeyPath, certOrKeyData)
}
return errors.New("unknown data found in Secret entry")
}
func getSecret(client clientset.Interface) (*v1.Secret, error) {
secret, err := client.CoreV1().Secrets(metav1.NamespaceSystem).Get(kubeadmconstants.KubeadmCertsSecret, metav1.GetOptions{})
if err != nil {
if apierrors.IsNotFound(err) {
return nil, errors.Errorf("Secret %q was not found in the %q Namespace. This Secret might have expired. Please, run `kubeadm init phase upload-certs` on a control plane to generate a new one", kubeadmconstants.KubeadmCertsSecret, metav1.NamespaceSystem)
}
return nil, err
}
return secret, nil
}
func getDataFromSecret(secret *v1.Secret, key []byte) (map[string][]byte, error) {
secretData := map[string][]byte{}
for certName, encryptedCert := range secret.Data {
cert, err := cryptoutil.DecryptBytes(encryptedCert, key)
if err != nil {
// If any of the decrypt operations fail do not return a partial result,
// return an empty result immediately
return map[string][]byte{}, err
}
secretData[certName] = cert
}
return secretData, nil
}
func certOrKeyNameToSecretName(certOrKeyName string) string {
return strings.Replace(certOrKeyName, "/", "-", -1)
}

62
cmd/kubeadm/app/phases/uploadcerts/uploadcerts_test.go → cmd/kubeadm/app/phases/copycerts/copycerts_test.go
View File

@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
package uploadcerts
package copycerts
import (
"encoding/hex"
@ -38,7 +38,7 @@ func TestUploadCerts(t *testing.T) {
}
//teste cert name, teste cert can be decrypted
func TestGetSecretData(t *testing.T) {
func TestGetDataFromInitConfig(t *testing.T) {
certData := []byte("cert-data")
tmpdir := testutil.SetupTempDir(t)
defer os.RemoveAll(tmpdir)
@ -58,14 +58,14 @@ func TestGetSecretData(t *testing.T) {
t.Fatalf(dedent.Dedent("failed to create etcd cert dir.\nfatal error: %v"), err)
}
certs := certsToUpload(cfg)
certs := certsToTransfer(cfg)
for name, path := range certs {
if err := ioutil.WriteFile(path, certData, 0644); err != nil {
t.Fatalf(dedent.Dedent("failed to write cert: %s\nfatal error: %v"), name, err)
}
}
secretData, err := getSecretData(cfg, decodedKey)
secretData, err := getDataFromDisk(cfg, decodedKey)
if err != nil {
t.Fatalf("failed to get secret data. fatal error: %v", err)
}
@ -83,29 +83,44 @@ func TestGetSecretData(t *testing.T) {
}
}
func TestCertsToUpload(t *testing.T) {
func TestCertsToTransfer(t *testing.T) {
localEtcdCfg := &kubeadmapi.InitConfiguration{}
externalEtcdCfg := &kubeadmapi.InitConfiguration{}
externalEtcdCfg.Etcd = kubeadmapi.Etcd{}
externalEtcdCfg.Etcd.External = &kubeadmapi.ExternalEtcd{}
commonExpectedCerts := []string{
kubeadmconstants.CACertName,
kubeadmconstants.CAKeyName,
kubeadmconstants.FrontProxyCACertName,
kubeadmconstants.FrontProxyCAKeyName,
kubeadmconstants.ServiceAccountPublicKeyName,
kubeadmconstants.ServiceAccountPrivateKeyName,
}
tests := map[string]struct {
config *kubeadmapi.InitConfiguration
expectedCerts []string
}{
"local etcd": {
config: localEtcdCfg,
expectedCerts: []string{kubeadmconstants.EtcdCACertName, kubeadmconstants.EtcdCAKeyName},
config: localEtcdCfg,
expectedCerts: append(
[]string{kubeadmconstants.EtcdCACertName, kubeadmconstants.EtcdCAKeyName},
commonExpectedCerts...,
),
},
"external etcd": {
config: externalEtcdCfg,
expectedCerts: []string{externalEtcdCA, externalEtcdCert, externalEtcdKey},
config: externalEtcdCfg,
expectedCerts: append(
[]string{externalEtcdCA, externalEtcdCert, externalEtcdKey},
commonExpectedCerts...,
),
},
}
for name, test := range tests {
t.Run(name, func(t2 *testing.T) {
certList := certsToUpload(test.config)
certList := certsToTransfer(test.config)
for _, cert := range test.expectedCerts {
if _, found := certList[cert]; !found {
t2.Fatalf(dedent.Dedent("failed to get list of certs to upload\ncert %s not found"), cert)
@ -114,3 +129,30 @@ func TestCertsToUpload(t *testing.T) {
})
}
}
func TestCertOrKeyNameToSecretName(t *testing.T) {
tests := []struct {
keyName string
expectedSecretName string
}{
{
keyName: "apiserver-kubelet-client.crt",
expectedSecretName: "apiserver-kubelet-client.crt",
},
{
keyName: "etcd/ca.crt",
expectedSecretName: "etcd-ca.crt",
},
{
keyName: "etcd/healthcheck-client.crt",
expectedSecretName: "etcd-healthcheck-client.crt",
},
}
for _, tc := range tests {
secretName := certOrKeyNameToSecretName(tc.keyName)
if secretName != tc.expectedSecretName {
t.Fatalf("secret name %s didn't match expected name %s", secretName, tc.expectedSecretName)
}
}
}