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Code Issues Releases Wiki Activity

Update to new certs package since latest k8s dropped it

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This commit is contained in:
Darren Shepherd 2019-08-19 10:53:15 -07:00
parent d2ae2b8e06
commit f8bac2c059
21 changed files with 786 additions and 36 deletions
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3
addons/addons.go
View File

@ -2,6 +2,7 @@ package addons
import (
"fmt"
"k8s.io/client-go/transport"
"strconv"
"github.com/rancher/rke/k8s"
@ -27,7 +28,7 @@ func getAddonJob(addonName, nodeName, image string, isDelete bool) (string, erro
return templates.CompileTemplateFromMap(templates.AddonJobTemplate, jobConfig)
}
func AddonJobExists(addonJobName, kubeConfigPath string, k8sWrapTransport k8s.WrapTransport) (bool, error) {
func AddonJobExists(addonJobName, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) (bool, error) {
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {
return false, err

7
authz/authz.go
View File

@ -6,9 +6,10 @@ import (
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/templates"
"k8s.io/client-go/transport"
)
func ApplyJobDeployerServiceAccount(ctx context.Context, kubeConfigPath string, k8sWrapTransport k8s.WrapTransport) error {
func ApplyJobDeployerServiceAccount(ctx context.Context, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) error {
log.Infof(ctx, "[authz] Creating rke-job-deployer ServiceAccount")
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {
@ -24,7 +25,7 @@ func ApplyJobDeployerServiceAccount(ctx context.Context, kubeConfigPath string,
return nil
}
func ApplySystemNodeClusterRoleBinding(ctx context.Context, kubeConfigPath string, k8sWrapTransport k8s.WrapTransport) error {
func ApplySystemNodeClusterRoleBinding(ctx context.Context, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) error {
log.Infof(ctx, "[authz] Creating system:node ClusterRoleBinding")
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {
@ -37,7 +38,7 @@ func ApplySystemNodeClusterRoleBinding(ctx context.Context, kubeConfigPath strin
return nil
}
func ApplyKubeAPIClusterRole(ctx context.Context, kubeConfigPath string, k8sWrapTransport k8s.WrapTransport) error {
func ApplyKubeAPIClusterRole(ctx context.Context, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) error {
log.Infof(ctx, "[authz] Creating kube-apiserver proxy ClusterRole and ClusterRoleBinding")
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {

6
authz/psp.go
View File

@ -3,12 +3,14 @@ package authz
import (
"context"
"k8s.io/client-go/transport"
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/templates"
)
func ApplyDefaultPodSecurityPolicy(ctx context.Context, kubeConfigPath string, k8sWrapTransport k8s.WrapTransport) error {
func ApplyDefaultPodSecurityPolicy(ctx context.Context, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) error {
log.Infof(ctx, "[authz] Applying default PodSecurityPolicy")
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {
@ -21,7 +23,7 @@ func ApplyDefaultPodSecurityPolicy(ctx context.Context, kubeConfigPath string, k
return nil
}
func ApplyDefaultPodSecurityPolicyRole(ctx context.Context, kubeConfigPath, namespace string, k8sWrapTransport k8s.WrapTransport) error {
func ApplyDefaultPodSecurityPolicyRole(ctx context.Context, kubeConfigPath, namespace string, k8sWrapTransport transport.WrapperFunc) error {
log.Infof(ctx, "[authz] Applying default PodSecurityPolicy Role and RoleBinding in %s", namespace)
k8sClient, err := k8s.NewClient(kubeConfigPath, k8sWrapTransport)
if err != nil {

2
cluster/certificates.go
View File

@ -10,9 +10,9 @@ import (
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/pki/cert"
"github.com/rancher/rke/services"
"github.com/sirupsen/logrus"
"k8s.io/client-go/util/cert"
)
func SetUpAuthentication(ctx context.Context, kubeCluster, currentCluster *Cluster, fullState *FullState) error {

9
cluster/cluster.go
View File

@ -8,7 +8,7 @@ import (
"strings"
"time"
"github.com/rancher/rke/metadata"
"github.com/rancher/rke/pki/cert"
"github.com/docker/docker/api/types"
"github.com/rancher/rke/authz"
@ -16,6 +16,7 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/metadata"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/services"
"github.com/rancher/rke/util"
@ -26,7 +27,7 @@ import (
v1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/util/cert"
"k8s.io/client-go/transport"
)
type Cluster struct {
@ -46,7 +47,7 @@ type Cluster struct {
EtcdReadyHosts []*hosts.Host
ForceDeployCerts bool
InactiveHosts []*hosts.Host
K8sWrapTransport k8s.WrapTransport
K8sWrapTransport transport.WrapperFunc
KubeClient *kubernetes.Clientset
KubernetesServiceIP net.IP
LocalKubeConfigPath string
@ -264,7 +265,7 @@ func rebuildLocalAdminConfig(ctx context.Context, kubeCluster *Cluster) error {
return nil
}
func isLocalConfigWorking(ctx context.Context, localKubeConfigPath string, k8sWrapTransport k8s.WrapTransport) bool {
func isLocalConfigWorking(ctx context.Context, localKubeConfigPath string, k8sWrapTransport transport.WrapperFunc) bool {
if _, err := GetK8sVersion(localKubeConfigPath, k8sWrapTransport); err != nil {
log.Infof(ctx, "[reconcile] Local config is not valid, rebuilding admin config")
return false

2
cluster/reconcile.go
View File

@ -10,11 +10,11 @@ import (
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/pki/cert"
"github.com/rancher/rke/services"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/sirupsen/logrus"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/util/cert"
)
const (

4
cluster/state.go
View File

@ -11,6 +11,8 @@ import (
"strings"
"time"
"k8s.io/client-go/transport"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/k8s"
"github.com/rancher/rke/log"
@ -130,7 +132,7 @@ func GetStateFromKubernetes(ctx context.Context, kubeCluster *Cluster) (*Cluster
}
}
func GetK8sVersion(localConfigPath string, k8sWrapTransport k8s.WrapTransport) (string, error) {
func GetK8sVersion(localConfigPath string, k8sWrapTransport transport.WrapperFunc) (string, error) {
logrus.Debugf("[version] Using %s to connect to Kubernetes cluster..", localConfigPath)
k8sClient, err := k8s.NewClient(localConfigPath, k8sWrapTransport)
if err != nil {

4
cmd/cert.go
View File

@ -8,10 +8,10 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/pki/cert"
"github.com/rancher/rke/services"
"github.com/rancher/types/apis/management.cattle.io/v3"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/urfave/cli"
"k8s.io/client-go/util/cert"
)
func CertificateCommand() cli.Command {

4
cmd/up.go
View File

@ -11,9 +11,9 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/rancher/rke/pki/cert"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/urfave/cli"
"k8s.io/client-go/util/cert"
)
const DINDWaitTime = 3

8
hosts/dialer.go
View File

@ -2,12 +2,12 @@ package hosts
import (
"fmt"
"k8s.io/client-go/transport"
"net"
"net/http"
"strings"
"time"
"github.com/rancher/rke/k8s"
"github.com/rancher/types/apis/management.cattle.io/v3"
"golang.org/x/crypto/ssh"
)
@ -33,10 +33,10 @@ type dialer struct {
type DialersOptions struct {
DockerDialerFactory DialerFactory
LocalConnDialerFactory DialerFactory
K8sWrapTransport k8s.WrapTransport
K8sWrapTransport transport.WrapperFunc
}
func GetDialerOptions(d, l DialerFactory, w k8s.WrapTransport) DialersOptions {
func GetDialerOptions(d, l DialerFactory, w transport.WrapperFunc) DialersOptions {
return DialersOptions{
DockerDialerFactory: d,
LocalConnDialerFactory: l,
@ -221,7 +221,7 @@ func (d *dialer) getBastionHostTunnelConn() (*ssh.Client, error) {
return ssh.NewClient(newClientConn, channels, sshRequest), nil
}
func BastionHostWrapTransport(bastionHost v3.BastionHost) (k8s.WrapTransport, error) {
func BastionHostWrapTransport(bastionHost v3.BastionHost) (transport.WrapperFunc, error) {
bastionDialer := &dialer{
sshAddress: fmt.Sprintf("%s:%s", bastionHost.Address, bastionHost.Port),

7
k8s/job.go
View File

@ -2,14 +2,13 @@ package k8s
import (
"fmt"
"github.com/sirupsen/logrus"
"k8s.io/api/batch/v1"
corev1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/transport"
)
type JobStatus struct {
@ -17,7 +16,7 @@ type JobStatus struct {
Created bool
}
func ApplyK8sSystemJob(jobYaml, kubeConfigPath string, k8sWrapTransport WrapTransport, timeout int, addonUpdated bool) error {
func ApplyK8sSystemJob(jobYaml, kubeConfigPath string, k8sWrapTransport transport.WrapperFunc, timeout int, addonUpdated bool) error {
job := v1.Job{}
if err := decodeYamlResource(&job, jobYaml); err != nil {
return err

6
k8s/k8s.go
View File

@ -2,7 +2,7 @@ package k8s
import (
"bytes"
"net/http"
"k8s.io/client-go/transport"
"time"
yamlutil "k8s.io/apimachinery/pkg/util/yaml"
@ -19,9 +19,7 @@ const (
type k8sCall func(*kubernetes.Clientset, interface{}) error
type WrapTransport func(rt http.RoundTripper) http.RoundTripper
func NewClient(kubeConfigPath string, k8sWrapTransport WrapTransport) (*kubernetes.Clientset, error) {
func NewClient(kubeConfigPath string, k8sWrapTransport transport.WrapperFunc) (*kubernetes.Clientset, error) {
// use the current admin kubeconfig
config, err := clientcmd.BuildConfigFromFlags("", kubeConfigPath)
if err != nil {

245
pki/cert/cert.go Normal file
View File

@ -0,0 +1,245 @@
/*
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 cert
import (
"bytes"
"crypto/ecdsa"
"crypto/elliptic"
cryptorand "crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"errors"
"fmt"
"math"
"math/big"
"net"
"time"
)
const (
rsaKeySize = 2048
duration365d = time.Hour * 24 * 365
)
// Config contains the basic fields required for creating a certificate
type Config struct {
CommonName string
Organization []string
AltNames AltNames
Usages []x509.ExtKeyUsage
}
// AltNames contains the domain names and IP addresses that will be added
// to the API Server's x509 certificate SubAltNames field. The values will
// be passed directly to the x509.Certificate object.
type AltNames struct {
DNSNames []string
IPs []net.IP
}
// NewPrivateKey creates an RSA private key
func NewPrivateKey() (*rsa.PrivateKey, error) {
return rsa.GenerateKey(cryptorand.Reader, rsaKeySize)
}
// NewSelfSignedCACert creates a CA certificate
func NewSelfSignedCACert(cfg Config, key *rsa.PrivateKey) (*x509.Certificate, error) {
now := time.Now()
tmpl := x509.Certificate{
SerialNumber: new(big.Int).SetInt64(0),
Subject: pkix.Name{
CommonName: cfg.CommonName,
Organization: cfg.Organization,
},
NotBefore: now.UTC(),
NotAfter: now.Add(duration365d * 10).UTC(),
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
BasicConstraintsValid: true,
IsCA: true,
}
certDERBytes, err := x509.CreateCertificate(cryptorand.Reader, &tmpl, &tmpl, key.Public(), key)
if err != nil {
return nil, err
}
return x509.ParseCertificate(certDERBytes)
}
// NewSignedCert creates a signed certificate using the given CA certificate and key
func NewSignedCert(cfg Config, key *rsa.PrivateKey, caCert *x509.Certificate, caKey *rsa.PrivateKey) (*x509.Certificate, error) {
serial, err := cryptorand.Int(cryptorand.Reader, new(big.Int).SetInt64(math.MaxInt64))
if err != nil {
return nil, err
}
if len(cfg.CommonName) == 0 {
return nil, errors.New("must specify a CommonName")
}
if len(cfg.Usages) == 0 {
return nil, errors.New("must specify at least one ExtKeyUsage")
}
certTmpl := x509.Certificate{
Subject: pkix.Name{
CommonName: cfg.CommonName,
Organization: cfg.Organization,
},
DNSNames: cfg.AltNames.DNSNames,
IPAddresses: cfg.AltNames.IPs,
SerialNumber: serial,
NotBefore: caCert.NotBefore,
NotAfter: time.Now().Add(duration365d).UTC(),
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: cfg.Usages,
}
certDERBytes, err := x509.CreateCertificate(cryptorand.Reader, &certTmpl, caCert, key.Public(), caKey)
if err != nil {
return nil, err
}
return x509.ParseCertificate(certDERBytes)
}
// MakeEllipticPrivateKeyPEM creates an ECDSA private key
func MakeEllipticPrivateKeyPEM() ([]byte, error) {
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), cryptorand.Reader)
if err != nil {
return nil, err
}
derBytes, err := x509.MarshalECPrivateKey(privateKey)
if err != nil {
return nil, err
}
privateKeyPemBlock := &pem.Block{
Type: ECPrivateKeyBlockType,
Bytes: derBytes,
}
return pem.EncodeToMemory(privateKeyPemBlock), nil
}
// GenerateSelfSignedCertKey creates a self-signed certificate and key for the given host.
// Host may be an IP or a DNS name
// You may also specify additional subject alt names (either ip or dns names) for the certificate
func GenerateSelfSignedCertKey(host string, alternateIPs []net.IP, alternateDNS []string) ([]byte, []byte, error) {
caKey, err := rsa.GenerateKey(cryptorand.Reader, 2048)
if err != nil {
return nil, nil, err
}
caTemplate := x509.Certificate{
SerialNumber: big.NewInt(1),
Subject: pkix.Name{
CommonName: fmt.Sprintf("%s-ca@%d", host, time.Now().Unix()),
},
NotBefore: time.Now(),
NotAfter: time.Now().Add(time.Hour * 24 * 365),
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
BasicConstraintsValid: true,
IsCA: true,
}
caDERBytes, err := x509.CreateCertificate(cryptorand.Reader, &caTemplate, &caTemplate, &caKey.PublicKey, caKey)
if err != nil {
return nil, nil, err
}
caCertificate, err := x509.ParseCertificate(caDERBytes)
if err != nil {
return nil, nil, err
}
priv, err := rsa.GenerateKey(cryptorand.Reader, 2048)
if err != nil {
return nil, nil, err
}
template := x509.Certificate{
SerialNumber: big.NewInt(2),
Subject: pkix.Name{
CommonName: fmt.Sprintf("%s@%d", host, time.Now().Unix()),
},
NotBefore: time.Now(),
NotAfter: time.Now().Add(time.Hour * 24 * 365),
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
}
if ip := net.ParseIP(host); ip != nil {
template.IPAddresses = append(template.IPAddresses, ip)
} else {
template.DNSNames = append(template.DNSNames, host)
}
template.IPAddresses = append(template.IPAddresses, alternateIPs...)
template.DNSNames = append(template.DNSNames, alternateDNS...)
derBytes, err := x509.CreateCertificate(cryptorand.Reader, &template, caCertificate, &priv.PublicKey, caKey)
if err != nil {
return nil, nil, err
}
// Generate cert, followed by ca
certBuffer := bytes.Buffer{}
if err := pem.Encode(&certBuffer, &pem.Block{Type: CertificateBlockType, Bytes: derBytes}); err != nil {
return nil, nil, err
}
if err := pem.Encode(&certBuffer, &pem.Block{Type: CertificateBlockType, Bytes: caDERBytes}); err != nil {
return nil, nil, err
}
// Generate key
keyBuffer := bytes.Buffer{}
if err := pem.Encode(&keyBuffer, &pem.Block{Type: RSAPrivateKeyBlockType, Bytes: x509.MarshalPKCS1PrivateKey(priv)}); err != nil {
return nil, nil, err
}
return certBuffer.Bytes(), keyBuffer.Bytes(), nil
}
// FormatBytesCert receives byte array certificate and formats in human-readable format
func FormatBytesCert(cert []byte) (string, error) {
block, _ := pem.Decode(cert)
c, err := x509.ParseCertificate(block.Bytes)
if err != nil {
return "", fmt.Errorf("failed to parse certificate [%v]", err)
}
return FormatCert(c), nil
}
// FormatCert receives certificate and formats in human-readable format
func FormatCert(c *x509.Certificate) string {
var ips []string
for _, ip := range c.IPAddresses {
ips = append(ips, ip.String())
}
altNames := append(ips, c.DNSNames...)
res := fmt.Sprintf(
"Issuer: CN=%s | Subject: CN=%s | CA: %t\n",
c.Issuer.CommonName, c.Subject.CommonName, c.IsCA,
)
res += fmt.Sprintf("Not before: %s Not After: %s", c.NotBefore, c.NotAfter)
if len(altNames) > 0 {
res += fmt.Sprintf("\nAlternate Names: %v", altNames)
}
return res
}

75
pki/cert/csr.go Normal file
View File

@ -0,0 +1,75 @@
/*
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 cert
import (
cryptorand "crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"net"
)
// MakeCSR generates a PEM-encoded CSR using the supplied private key, subject, and SANs.
// All key types that are implemented via crypto.Signer are supported (This includes *rsa.PrivateKey and *ecdsa.PrivateKey.)
func MakeCSR(privateKey interface{}, subject *pkix.Name, dnsSANs []string, ipSANs []net.IP) (csr []byte, err error) {
template := &x509.CertificateRequest{
Subject: *subject,
DNSNames: dnsSANs,
IPAddresses: ipSANs,
}
return MakeCSRFromTemplate(privateKey, template)
}
// MakeCSRFromTemplate generates a PEM-encoded CSR using the supplied private
// key and certificate request as a template. All key types that are
// implemented via crypto.Signer are supported (This includes *rsa.PrivateKey
// and *ecdsa.PrivateKey.)
func MakeCSRFromTemplate(privateKey interface{}, template *x509.CertificateRequest) ([]byte, error) {
t := *template
t.SignatureAlgorithm = sigType(privateKey)
csrDER, err := x509.CreateCertificateRequest(cryptorand.Reader, &t, privateKey)
if err != nil {
return nil, err
}
csrPemBlock := &pem.Block{
Type: CertificateRequestBlockType,
Bytes: csrDER,
}
return pem.EncodeToMemory(csrPemBlock), nil
}
func sigType(privateKey interface{}) x509.SignatureAlgorithm {
// Customize the signature for RSA keys, depending on the key size
if privateKey, ok := privateKey.(*rsa.PrivateKey); ok {
keySize := privateKey.N.BitLen()
switch {
case keySize >= 4096:
return x509.SHA512WithRSA
case keySize >= 3072:
return x509.SHA384WithRSA
default:
return x509.SHA256WithRSA
}
}
return x509.UnknownSignatureAlgorithm
}

158
pki/cert/io.go Normal file
View File

@ -0,0 +1,158 @@
/*
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 cert
import (
"crypto/x509"
"fmt"
"io/ioutil"
"os"
"path/filepath"
)
// CanReadCertAndKey returns true if the certificate and key files already exists,
// otherwise returns false. If lost one of cert and key, returns error.
func CanReadCertAndKey(certPath, keyPath string) (bool, error) {
certReadable := canReadFile(certPath)
keyReadable := canReadFile(keyPath)
if certReadable == false && keyReadable == false {
return false, nil
}
if certReadable == false {
return false, fmt.Errorf("error reading %s, certificate and key must be supplied as a pair", certPath)
}
if keyReadable == false {
return false, fmt.Errorf("error reading %s, certificate and key must be supplied as a pair", keyPath)
}
return true, nil
}
// If the file represented by path exists and
// readable, returns true otherwise returns false.
func canReadFile(path string) bool {
f, err := os.Open(path)
if err != nil {
return false
}
defer f.Close()
return true
}
// WriteCert writes the pem-encoded certificate data to certPath.
// The certificate file will be created with file mode 0644.
// If the certificate file already exists, it will be overwritten.
// The parent directory of the certPath will be created as needed with file mode 0755.
func WriteCert(certPath string, data []byte) error {
if err := os.MkdirAll(filepath.Dir(certPath), os.FileMode(0755)); err != nil {
return err
}
return ioutil.WriteFile(certPath, data, os.FileMode(0644))
}
// WriteKey writes the pem-encoded key data to keyPath.
// The key file will be created with file mode 0600.
// If the key file already exists, it will be overwritten.
// The parent directory of the keyPath will be created as needed with file mode 0755.
func WriteKey(keyPath string, data []byte) error {
if err := os.MkdirAll(filepath.Dir(keyPath), os.FileMode(0755)); err != nil {
return err
}
return ioutil.WriteFile(keyPath, data, os.FileMode(0600))
}
// LoadOrGenerateKeyFile looks for a key in the file at the given path. If it
// can't find one, it will generate a new key and store it there.
func LoadOrGenerateKeyFile(keyPath string) (data []byte, wasGenerated bool, err error) {
loadedData, err := ioutil.ReadFile(keyPath)
if err == nil {
return loadedData, false, err
}
if !os.IsNotExist(err) {
return nil, false, fmt.Errorf("error loading key from %s: %v", keyPath, err)
}
generatedData, err := MakeEllipticPrivateKeyPEM()
if err != nil {
return nil, false, fmt.Errorf("error generating key: %v", err)
}
if err := WriteKey(keyPath, generatedData); err != nil {
return nil, false, fmt.Errorf("error writing key to %s: %v", keyPath, err)
}
return generatedData, true, nil
}
// NewPool returns an x509.CertPool containing the certificates in the given PEM-encoded file.
// Returns an error if the file could not be read, a certificate could not be parsed, or if the file does not contain any certificates
func NewPool(filename string) (*x509.CertPool, error) {
certs, err := CertsFromFile(filename)
if err != nil {
return nil, err
}
pool := x509.NewCertPool()
for _, cert := range certs {
pool.AddCert(cert)
}
return pool, nil
}
// CertsFromFile returns the x509.Certificates contained in the given PEM-encoded file.
// Returns an error if the file could not be read, a certificate could not be parsed, or if the file does not contain any certificates
func CertsFromFile(file string) ([]*x509.Certificate, error) {
pemBlock, err := ioutil.ReadFile(file)
if err != nil {
return nil, err
}
certs, err := ParseCertsPEM(pemBlock)
if err != nil {
return nil, fmt.Errorf("error reading %s: %s", file, err)
}
return certs, nil
}
// PrivateKeyFromFile returns the private key in rsa.PrivateKey or ecdsa.PrivateKey format from a given PEM-encoded file.
// Returns an error if the file could not be read or if the private key could not be parsed.
func PrivateKeyFromFile(file string) (interface{}, error) {
data, err := ioutil.ReadFile(file)
if err != nil {
return nil, err
}
key, err := ParsePrivateKeyPEM(data)
if err != nil {
return nil, fmt.Errorf("error reading private key file %s: %v", file, err)
}
return key, nil
}
// PublicKeysFromFile returns the public keys in rsa.PublicKey or ecdsa.PublicKey format from a given PEM-encoded file.
// Reads public keys from both public and private key files.
func PublicKeysFromFile(file string) ([]interface{}, error) {
data, err := ioutil.ReadFile(file)
if err != nil {
return nil, err
}
keys, err := ParsePublicKeysPEM(data)
if err != nil {
return nil, fmt.Errorf("error reading public key file %s: %v", file, err)
}
return keys, nil
}

269
pki/cert/pem.go Normal file
View File

@ -0,0 +1,269 @@
/*
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 cert
import (
"crypto/ecdsa"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
)
const (
// ECPrivateKeyBlockType is a possible value for pem.Block.Type.
ECPrivateKeyBlockType = "EC PRIVATE KEY"
// RSAPrivateKeyBlockType is a possible value for pem.Block.Type.
RSAPrivateKeyBlockType = "RSA PRIVATE KEY"
// PrivateKeyBlockType is a possible value for pem.Block.Type.
PrivateKeyBlockType = "PRIVATE KEY"
// PublicKeyBlockType is a possible value for pem.Block.Type.
PublicKeyBlockType = "PUBLIC KEY"
// CertificateBlockType is a possible value for pem.Block.Type.
CertificateBlockType = "CERTIFICATE"
// CertificateRequestBlockType is a possible value for pem.Block.Type.
CertificateRequestBlockType = "CERTIFICATE REQUEST"
)
// EncodePublicKeyPEM returns PEM-encoded public data
func EncodePublicKeyPEM(key *rsa.PublicKey) ([]byte, error) {
der, err := x509.MarshalPKIXPublicKey(key)
if err != nil {
return []byte{}, err
}
block := pem.Block{
Type: PublicKeyBlockType,
Bytes: der,
}
return pem.EncodeToMemory(&block), nil
}
// EncodePrivateKeyPEM returns PEM-encoded private key data
func EncodePrivateKeyPEM(key *rsa.PrivateKey) []byte {
block := pem.Block{
Type: RSAPrivateKeyBlockType,
Bytes: x509.MarshalPKCS1PrivateKey(key),
}
return pem.EncodeToMemory(&block)
}
// EncodeCertPEM returns PEM-endcoded certificate data
func EncodeCertPEM(cert *x509.Certificate) []byte {
block := pem.Block{
Type: CertificateBlockType,
Bytes: cert.Raw,
}
return pem.EncodeToMemory(&block)
}
// ParsePrivateKeyPEM returns a private key parsed from a PEM block in the supplied data.
// Recognizes PEM blocks for "EC PRIVATE KEY", "RSA PRIVATE KEY", or "PRIVATE KEY"
func ParsePrivateKeyPEM(keyData []byte) (interface{}, error) {
var privateKeyPemBlock *pem.Block
for {
privateKeyPemBlock, keyData = pem.Decode(keyData)
if privateKeyPemBlock == nil {
break
}
switch privateKeyPemBlock.Type {
case ECPrivateKeyBlockType:
// ECDSA Private Key in ASN.1 format
if key, err := x509.ParseECPrivateKey(privateKeyPemBlock.Bytes); err == nil {
return key, nil
}
case RSAPrivateKeyBlockType:
// RSA Private Key in PKCS#1 format
if key, err := x509.ParsePKCS1PrivateKey(privateKeyPemBlock.Bytes); err == nil {
return key, nil
}
case PrivateKeyBlockType:
// RSA or ECDSA Private Key in unencrypted PKCS#8 format
if key, err := x509.ParsePKCS8PrivateKey(privateKeyPemBlock.Bytes); err == nil {
return key, nil
}
}
// tolerate non-key PEM blocks for compatibility with things like "EC PARAMETERS" blocks
// originally, only the first PEM block was parsed and expected to be a key block
}
// we read all the PEM blocks and didn't recognize one
return nil, fmt.Errorf("data does not contain a valid RSA or ECDSA private key")
}
// ParsePublicKeysPEM is a helper function for reading an array of rsa.PublicKey or ecdsa.PublicKey from a PEM-encoded byte array.
// Reads public keys from both public and private key files.
func ParsePublicKeysPEM(keyData []byte) ([]interface{}, error) {
var block *pem.Block
keys := []interface{}{}
for {
// read the next block
block, keyData = pem.Decode(keyData)
if block == nil {
break
}
// test block against parsing functions
if privateKey, err := parseRSAPrivateKey(block.Bytes); err == nil {
keys = append(keys, &privateKey.PublicKey)
continue
}
if publicKey, err := parseRSAPublicKey(block.Bytes); err == nil {
keys = append(keys, publicKey)
continue
}
if privateKey, err := parseECPrivateKey(block.Bytes); err == nil {
keys = append(keys, &privateKey.PublicKey)
continue
}
if publicKey, err := parseECPublicKey(block.Bytes); err == nil {
keys = append(keys, publicKey)
continue
}
// tolerate non-key PEM blocks for backwards compatibility
// originally, only the first PEM block was parsed and expected to be a key block
}
if len(keys) == 0 {
return nil, fmt.Errorf("data does not contain any valid RSA or ECDSA public keys")
}
return keys, nil
}
// ParseCertsPEM returns the x509.Certificates contained in the given PEM-encoded byte array
// Returns an error if a certificate could not be parsed, or if the data does not contain any certificates
func ParseCertsPEM(pemCerts []byte) ([]*x509.Certificate, error) {
ok := false
certs := []*x509.Certificate{}
for len(pemCerts) > 0 {
var block *pem.Block
block, pemCerts = pem.Decode(pemCerts)
if block == nil {
break
}
// Only use PEM "CERTIFICATE" blocks without extra headers
if block.Type != CertificateBlockType || len(block.Headers) != 0 {
continue
}
cert, err := x509.ParseCertificate(block.Bytes)
if err != nil {
return certs, err
}
certs = append(certs, cert)
ok = true
}
if !ok {
return certs, errors.New("data does not contain any valid RSA or ECDSA certificates")
}
return certs, nil
}
// parseRSAPublicKey parses a single RSA public key from the provided data
func parseRSAPublicKey(data []byte) (*rsa.PublicKey, error) {
var err error
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil {
if cert, err := x509.ParseCertificate(data); err == nil {
parsedKey = cert.PublicKey
} else {
return nil, err
}
}
// Test if parsed key is an RSA Public Key
var pubKey *rsa.PublicKey
var ok bool
if pubKey, ok = parsedKey.(*rsa.PublicKey); !ok {
return nil, fmt.Errorf("data doesn't contain valid RSA Public Key")
}
return pubKey, nil
}
// parseRSAPrivateKey parses a single RSA private key from the provided data
func parseRSAPrivateKey(data []byte) (*rsa.PrivateKey, error) {
var err error
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParsePKCS1PrivateKey(data); err != nil {
if parsedKey, err = x509.ParsePKCS8PrivateKey(data); err != nil {
return nil, err
}
}
// Test if parsed key is an RSA Private Key
var privKey *rsa.PrivateKey
var ok bool
if privKey, ok = parsedKey.(*rsa.PrivateKey); !ok {
return nil, fmt.Errorf("data doesn't contain valid RSA Private Key")
}
return privKey, nil
}
// parseECPublicKey parses a single ECDSA public key from the provided data
func parseECPublicKey(data []byte) (*ecdsa.PublicKey, error) {
var err error
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParsePKIXPublicKey(data); err != nil {
if cert, err := x509.ParseCertificate(data); err == nil {
parsedKey = cert.PublicKey
} else {
return nil, err
}
}
// Test if parsed key is an ECDSA Public Key
var pubKey *ecdsa.PublicKey
var ok bool
if pubKey, ok = parsedKey.(*ecdsa.PublicKey); !ok {
return nil, fmt.Errorf("data doesn't contain valid ECDSA Public Key")
}
return pubKey, nil
}
// parseECPrivateKey parses a single ECDSA private key from the provided data
func parseECPrivateKey(data []byte) (*ecdsa.PrivateKey, error) {
var err error
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParseECPrivateKey(data); err != nil {
return nil, err
}
// Test if parsed key is an ECDSA Private Key
var privKey *ecdsa.PrivateKey
var ok bool
if privKey, ok = parsedKey.(*ecdsa.PrivateKey); !ok {
return nil, fmt.Errorf("data doesn't contain valid ECDSA Private Key")
}
return privKey, nil
}

2
pki/deploy.go
View File

@ -14,9 +14,9 @@ import (
"github.com/rancher/rke/docker"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki/cert"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/sirupsen/logrus"
"k8s.io/client-go/util/cert"
)
const (

2
pki/services.go
View File

@ -9,8 +9,8 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki/cert"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"k8s.io/client-go/util/cert"
)
func GenerateKubeAPICertificate(ctx context.Context, certs map[string]CertificatePKI, rkeConfig v3.RancherKubernetesEngineConfig, configPath, configDir string, rotate bool) error {

2
pki/util.go
View File

@ -21,9 +21,9 @@ import (
"time"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/pki/cert"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/sirupsen/logrus"
"k8s.io/client-go/util/cert"
)
var (

5
services/etcd.go
View File

@ -1,6 +1,7 @@
package services
import (
"context"
"encoding/base64"
"fmt"
"path"
@ -8,8 +9,6 @@ import (
"strings"
"time"
"context"
etcdclient "github.com/coreos/etcd/client"
"github.com/docker/docker/api/types/container"
"github.com/pkg/errors"
@ -17,11 +16,11 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/pki/cert"
"github.com/rancher/rke/util"
v3 "github.com/rancher/types/apis/management.cattle.io/v3"
"github.com/sirupsen/logrus"
"golang.org/x/sync/errgroup"
"k8s.io/client-go/util/cert"
)
const (

2
services/healthcheck.go
View File

@ -14,8 +14,8 @@ import (
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/pki/cert"
"github.com/sirupsen/logrus"
"k8s.io/client-go/util/cert"
)
const (