kubernetes.secrets storage.backend implementation

pull/99/head
Vitaliy Snurnitsin 11 months ago
parent 4b7ef65a66
commit 7f1da70b9d
  1. 195
      certificates.go
  2. 701
      kubernetes.go

@ -0,0 +1,195 @@
package main
import (
"bytes"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"errors"
"math/big"
"time"
)
// decode certificate from PEM to x509
func decodeCert(certPEMBytes []byte) (cert *x509.Certificate, err error) {
certPem, _ := pem.Decode(certPEMBytes)
certPemBytes := certPem.Bytes
cert, err = x509.ParseCertificate(certPemBytes)
if err != nil {
return
}
return
}
// decode private key from PEM to RSA format
func decodePrivKey(privKey []byte) (key *rsa.PrivateKey, err error) {
privKeyPem, _ := pem.Decode(privKey)
key, err = x509.ParsePKCS1PrivateKey(privKeyPem.Bytes)
if err == nil {
return
}
tmp, err := x509.ParsePKCS8PrivateKey(privKeyPem.Bytes)
if err != nil {
err = errors.New("error parse private key")
return
}
key, _ = tmp.(*rsa.PrivateKey)
return
}
// return PEM encoded private key
func genPrivKey() (privKeyPEM *bytes.Buffer, err error) {
privKey, err := rsa.GenerateKey(rand.Reader, 2048)
//privKeyPKCS1 := x509.MarshalPKCS1PrivateKey(privKey)
privKeyPKCS8, err := x509.MarshalPKCS8PrivateKey(privKey)
if err != nil {
return
}
privKeyPEM = new(bytes.Buffer)
err = pem.Encode(privKeyPEM, &pem.Block{
Type: "RSA PRIVATE KEY",
Bytes: privKeyPKCS8,
})
return
}
// return PEM encoded certificate
func genCA(privKey *rsa.PrivateKey) (issuerPEM *bytes.Buffer, err error) {
serialNumberRange := new(big.Int).Lsh(big.NewInt(1), 128)
issuerSerial, err := rand.Int(rand.Reader, serialNumberRange)
issuerTemplate := x509.Certificate{
BasicConstraintsValid: true,
IsCA: true,
SerialNumber: issuerSerial,
Subject: pkix.Name{
CommonName: "ca",
},
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign | x509.KeyUsageCRLSign,
NotBefore: time.Now(),
NotAfter: time.Now().AddDate(10, 0, 0),
}
issuerBytes, err := x509.CreateCertificate(rand.Reader, &issuerTemplate, &issuerTemplate, &privKey.PublicKey, privKey)
if err != nil {
return
}
issuerPEM = new(bytes.Buffer)
_ = pem.Encode(issuerPEM, &pem.Block{
Type: "CERTIFICATE",
Bytes: issuerBytes,
})
return
}
// return PEM encoded certificate
func genServerCert(privKey, caPrivKey *rsa.PrivateKey, ca *x509.Certificate, cn string) (issuerPEM *bytes.Buffer, err error) {
serialNumberRange := new(big.Int).Lsh(big.NewInt(1), 128)
serial, err := rand.Int(rand.Reader, serialNumberRange)
template := x509.Certificate{
BasicConstraintsValid: true,
DNSNames: []string{cn},
SerialNumber: serial,
Subject: pkix.Name{
CommonName: cn,
},
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
NotBefore: time.Now(),
NotAfter: ca.NotAfter,
}
issuerBytes, err := x509.CreateCertificate(rand.Reader, &template, ca, &privKey.PublicKey, caPrivKey)
if err != nil {
return
}
issuerPEM = new(bytes.Buffer)
_ = pem.Encode(issuerPEM, &pem.Block{
Type: "CERTIFICATE",
Bytes: issuerBytes,
})
return
}
// return PEM encoded certificate
func genClientCert(privKey, caPrivKey *rsa.PrivateKey, ca *x509.Certificate, cn string) (issuerPEM *bytes.Buffer, err error) {
serialNumberRange := new(big.Int).Lsh(big.NewInt(1), 128)
serial, err := rand.Int(rand.Reader, serialNumberRange)
template := x509.Certificate{
BasicConstraintsValid: true,
DNSNames: []string{cn},
SerialNumber: serial,
Subject: pkix.Name{
CommonName: cn,
},
KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth},
NotBefore: time.Now(),
NotAfter: ca.NotAfter,
}
issuerBytes, err := x509.CreateCertificate(rand.Reader, &template, ca, &privKey.PublicKey, caPrivKey)
if err != nil {
return
}
issuerPEM = new(bytes.Buffer)
_ = pem.Encode(issuerPEM, &pem.Block{
Type: "CERTIFICATE",
Bytes: issuerBytes,
})
return
}
// return PEM encoded CRL
func genCRL(certs []*RevokedCert, ca *x509.Certificate, caKey *rsa.PrivateKey) (crlPEM *bytes.Buffer, err error) {
var revokedCertificates []pkix.RevokedCertificate
for _, cert := range certs {
revokedCertificates = append(revokedCertificates, pkix.RevokedCertificate{SerialNumber: cert.Cert.SerialNumber, RevocationTime: cert.RevokedTime})
}
revocationList := &x509.RevocationList{
//SignatureAlgorithm: x509.SHA256WithRSA,
RevokedCertificates: revokedCertificates,
Number: big.NewInt(1),
ThisUpdate: time.Now(),
NextUpdate: time.Now().Add(180 * time.Hour * 24),
//ExtraExtensions: []pkix.Extension{},
}
crl, err := x509.CreateRevocationList(rand.Reader, revocationList, ca, caKey)
if err != nil {
return nil, err
}
crlPEM = new(bytes.Buffer)
err = pem.Encode(crlPEM, &pem.Block{
Type: "X509 CRL",
Bytes: crl,
})
if err != nil {
return
}
return
}

@ -0,0 +1,701 @@
package main
import (
"bytes"
"context"
"crypto/rsa"
"crypto/x509"
"errors"
"fmt"
"io/ioutil"
"os"
"os/exec"
"time"
log "github.com/sirupsen/logrus"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
)
const (
secretCA = "openvpn-pki-ca"
secretServer = "openvpn-pki-server"
secretClientTmpl = "openvpn-pki-%s"
secretCRL = "openvpn-pki-crl"
secretIndexTxt = "openvpn-pki-index-txt"
secretDHandTA = "openvpn-pki-dh-and-ta"
certFileName = "tls.crt"
privKeyFileName = "tls.key"
)
//<year><month><day><hour><minute><second>Z
const indexTxtDateFormat = "060102150405Z"
var namespace = "default"
type OpenVPNPKI struct {
CAPrivKeyRSA *rsa.PrivateKey
CAPrivKeyPEM *bytes.Buffer
CACert *x509.Certificate
CACertPEM *bytes.Buffer
ServerPrivKeyRSA *rsa.PrivateKey
ServerPrivKeyPEM *bytes.Buffer
ServerCert *x509.Certificate
ServerCertPEM *bytes.Buffer
ClientCerts []ClientCert
RevokedCerts []RevokedCert
KubeClient *kubernetes.Clientset
}
type ClientCert struct {
PrivKeyRSA *rsa.PrivateKey
PrivKeyPEM *bytes.Buffer
Cert *x509.Certificate
CertPEM *bytes.Buffer
}
type RevokedCert struct {
RevokedTime time.Time `json:"revokedTime"`
CommonName string `json:"commonName"`
Cert *x509.Certificate `json:"cert"`
}
func (openVPNPKI *OpenVPNPKI) run() (err error) {
if _, err := os.Stat(kubeNamespaceFilePath); err == nil {
file, err := ioutil.ReadFile(kubeNamespaceFilePath)
if err != nil {
return err
}
namespace = string(file)
}
err = openVPNPKI.initKubeClient()
if err != nil {
return
}
err = openVPNPKI.initPKI()
if err != nil {
return
}
err = openVPNPKI.indexTxtUpdate()
if err != nil {
log.Error(err)
}
err = openVPNPKI.easyrsaGenCRL()
if err != nil {
log.Error(err)
}
if res, _ := openVPNPKI.secretCheckExists(secretDHandTA); !res {
err := openVPNPKI.secretGenTaKeyAndDHParam()
if err != nil {
log.Error(err)
}
}
err = openVPNPKI.updateFilesFromSecrets()
if err != nil {
log.Error(err)
}
err = openVPNPKI.updateCRLOnDisk()
if err != nil {
log.Error(err)
}
err = openVPNPKI.updateIndexTxtOnDisk()
if err != nil {
log.Error(err)
}
err = openVPNPKI.updateCcdOnDisk()
if err != nil {
log.Error(err)
}
return
}
func (openVPNPKI *OpenVPNPKI) initKubeClient() (err error) {
config, _ := rest.InClusterConfig()
openVPNPKI.KubeClient, err = kubernetes.NewForConfig(config)
return
}
func (openVPNPKI *OpenVPNPKI) initPKI() (err error) {
if res, _ := openVPNPKI.secretCheckExists(secretCA); res {
cert, err := openVPNPKI.secretGetClientCert(secretCA)
if err != nil {
return err
}
openVPNPKI.CAPrivKeyPEM = cert.PrivKeyPEM
openVPNPKI.CAPrivKeyRSA = cert.PrivKeyRSA
openVPNPKI.CACertPEM = cert.CertPEM
openVPNPKI.CACert = cert.Cert
} else {
openVPNPKI.CAPrivKeyPEM, err = genPrivKey()
if err != nil {
return
}
openVPNPKI.CAPrivKeyRSA, err = decodePrivKey(openVPNPKI.CAPrivKeyPEM.Bytes())
openVPNPKI.CACertPEM, _ = genCA(openVPNPKI.CAPrivKeyRSA)
openVPNPKI.CACert, err = decodeCert(openVPNPKI.CACertPEM.Bytes())
if err != nil {
return
}
secretMetaData := metav1.ObjectMeta{Name: secretCA}
secretData := map[string][]byte{
certFileName: openVPNPKI.CACertPEM.Bytes(),
privKeyFileName: openVPNPKI.CAPrivKeyPEM.Bytes(),
}
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeTLS)
if err != nil {
return
}
}
if res, _ := openVPNPKI.secretCheckExists(secretServer); res {
cert, err := openVPNPKI.secretGetClientCert(secretServer)
if err != nil {
return err
}
openVPNPKI.ServerPrivKeyPEM = cert.PrivKeyPEM
openVPNPKI.ServerPrivKeyRSA = cert.PrivKeyRSA
openVPNPKI.ServerCertPEM = cert.CertPEM
openVPNPKI.ServerCert = cert.Cert
} else {
openVPNPKI.ServerPrivKeyPEM, err = genPrivKey()
if err != nil {
return
}
openVPNPKI.ServerPrivKeyRSA, err = decodePrivKey(openVPNPKI.ServerPrivKeyPEM.Bytes())
if err != nil {
return
}
openVPNPKI.ServerCertPEM, _ = genServerCert(openVPNPKI.ServerPrivKeyRSA, openVPNPKI.CAPrivKeyRSA, openVPNPKI.CACert, "server")
openVPNPKI.ServerCert, err = decodeCert(openVPNPKI.ServerCertPEM.Bytes())
secretMetaData := metav1.ObjectMeta{
Name: secretServer,
Labels: map[string]string{
"index.txt": "",
"type": "serverAuth",
},
}
secretData := map[string][]byte{
certFileName: openVPNPKI.ServerCertPEM.Bytes(),
privKeyFileName: openVPNPKI.ServerPrivKeyPEM.Bytes(),
}
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeTLS)
if err != nil {
return
}
}
return
}
func (openVPNPKI *OpenVPNPKI) indexTxtUpdate() (err error) {
secrets, err := openVPNPKI.secretsGetByLabels("index.txt=")
if err != nil {
return
}
var indexTxt string
for _, secret := range secrets.Items {
certPEM := bytes.NewBuffer(secret.Data[certFileName])
log.Trace("indexTxtUpdate:" + secret.Name)
cert, err := decodeCert(certPEM.Bytes())
if err != nil {
return nil
}
log.Trace(cert.Subject.CommonName)
if secret.Annotations["revokedAt"] == "" {
indexTxt += fmt.Sprintf("%s\t%s\t\t%s\t%s\t%s\n", "V", cert.NotAfter.Format(indexTxtDateFormat), cert.SerialNumber.String(), "unknown", "/CN="+cert.Subject.CommonName)
} else if cert.NotAfter.Before(time.Now()) {
indexTxt += fmt.Sprintf("%s\t%s\t\t%s\t%s\t%s\n", "E", cert.NotAfter.Format(indexTxtDateFormat), cert.SerialNumber.String(), "unknown", "/CN="+cert.Subject.CommonName)
} else {
indexTxt += fmt.Sprintf("%s\t%s\t%s\t%s\t%s\t%s\n", "R", cert.NotAfter.Format(indexTxtDateFormat), secret.Annotations["revokedAt"], cert.SerialNumber.String(), "unknown", "/CN="+cert.Subject.CommonName)
}
}
secretMetaData := metav1.ObjectMeta{Name: secretIndexTxt}
secretData := map[string][]byte{"index.txt": []byte(indexTxt)}
if res, _ := openVPNPKI.secretCheckExists(secretIndexTxt); !res {
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeOpaque)
} else {
err = openVPNPKI.secretUpdate(secretMetaData, secretData, v1.SecretTypeOpaque)
}
return
}
func (openVPNPKI *OpenVPNPKI) updateIndexTxtOnDisk() (err error) {
secret, err := openVPNPKI.secretGetByName(secretIndexTxt)
indexTxt := secret.Data["index.txt"]
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/index.txt", *easyrsaDirPath), indexTxt, 0600)
return
}
func (openVPNPKI *OpenVPNPKI) easyrsaGenCRL() (err error) {
err = openVPNPKI.indexTxtUpdate()
if err != nil {
return
}
secrets, err := openVPNPKI.secretsGetByLabels("index.txt=,type=clientAuth")
if err != nil {
return
}
var revoked []*RevokedCert
for _, secret := range secrets.Items {
if secret.Annotations["revokedAt"] != "" {
revokedAt, err := time.Parse(indexTxtDateFormat, secret.Annotations["revokedAt"])
if err != nil {
log.Warning(err)
}
cert, err := decodeCert(secret.Data[certFileName])
revoked = append(revoked, &RevokedCert{RevokedTime: revokedAt, Cert: cert})
}
}
crl, err := genCRL(revoked, openVPNPKI.CACert, openVPNPKI.CAPrivKeyRSA)
if err != nil {
return
}
secretMetaData := metav1.ObjectMeta{Name: secretCRL}
secretData := map[string][]byte{
"crl.pem": crl.Bytes(),
}
//err = openVPNPKI.secretCreate(secretMetaData, secretData)
if res, _ := openVPNPKI.secretCheckExists(secretCRL); !res {
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeOpaque)
} else {
err = openVPNPKI.secretUpdate(secretMetaData, secretData, v1.SecretTypeOpaque)
}
return
}
func (openVPNPKI *OpenVPNPKI) easyrsaBuildClient(commonName string) (err error) {
// check certificate exists
_, err = openVPNPKI.secretGetByLabels("name=" + commonName)
if err == nil {
return errors.New(fmt.Sprintf("certificate for user (%s) already exists", commonName))
}
clientPrivKeyPEM, err := genPrivKey()
if err != nil {
return
}
clientPrivKeyRSA, err := decodePrivKey(clientPrivKeyPEM.Bytes())
if err != nil {
return
}
clientCertPEM, _ := genClientCert(clientPrivKeyRSA, openVPNPKI.CAPrivKeyRSA, openVPNPKI.CACert, commonName)
clientCert, err := decodeCert(clientCertPEM.Bytes())
secretMetaData := metav1.ObjectMeta{
Name: fmt.Sprintf(secretClientTmpl, clientCert.SerialNumber),
Labels: map[string]string{
"index.txt": "",
"type": "clientAuth",
"name": commonName,
"app.kubernetes.io/managed-by": "ovpn-admin",
},
Annotations: map[string]string{
"commonName": commonName,
"notBefore": clientCert.NotBefore.Format(indexTxtDateFormat),
"notAfter": clientCert.NotAfter.Format(indexTxtDateFormat),
"revokedAt": "",
"serialNumber": clientCert.SerialNumber.String(),
},
}
secretData := map[string][]byte{
certFileName: clientCertPEM.Bytes(),
privKeyFileName: clientPrivKeyPEM.Bytes(),
}
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeTLS)
if err != nil {
return
}
err = openVPNPKI.indexTxtUpdate()
if err != nil {
return
}
err = openVPNPKI.updateIndexTxtOnDisk()
return
}
func (openVPNPKI *OpenVPNPKI) easyrsaGetCACert() string {
return openVPNPKI.CACertPEM.String()
}
func (openVPNPKI *OpenVPNPKI) easyrsaGetClientCert(commonName string) (cert, key string) {
secret, err := openVPNPKI.secretGetByLabels("name=" + commonName)
if err != nil {
log.Error(err)
}
cert = string(secret.Data[certFileName])
key = string(secret.Data[privKeyFileName])
return
}
func (openVPNPKI *OpenVPNPKI) easyrsaRevoke(commonName string) (err error) {
secret, err := openVPNPKI.secretGetByLabels("name=" + commonName)
if err != nil {
log.Error(err)
}
if secret.Annotations["revokedAt"] != "" {
log.Warnf("user (%s) already revoked", commonName)
return
}
secret.Annotations["revokedAt"] = time.Now().Format(indexTxtDateFormat)
_, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Update(context.TODO(), secret, metav1.UpdateOptions{})
if err != nil {
return
}
err = openVPNPKI.indexTxtUpdate()
if err != nil {
return
}
err = openVPNPKI.updateIndexTxtOnDisk()
if err != nil {
return
}
err = openVPNPKI.easyrsaGenCRL()
if err != nil {
log.Error(err)
}
err = openVPNPKI.updateCRLOnDisk()
return
}
func (openVPNPKI *OpenVPNPKI) easyrsaUnrevoke(commonName string) (err error) {
secret, err := openVPNPKI.secretGetByLabels("name=" + commonName)
if err != nil {
log.Error(err)
}
secret.Annotations["revokedAt"] = ""
_, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Update(context.TODO(), secret, metav1.UpdateOptions{})
if err != nil {
return
}
err = openVPNPKI.indexTxtUpdate()
if err != nil {
return
}
err = openVPNPKI.updateIndexTxtOnDisk()
if err != nil {
return
}
err = openVPNPKI.easyrsaGenCRL()
if err != nil {
log.Error(err)
}
err = openVPNPKI.updateCRLOnDisk()
return
}
func (openVPNPKI *OpenVPNPKI) secretGetClientCert(name string) (cert ClientCert, err error) {
secret, err := openVPNPKI.secretGetByName(name)
if err != nil {
return
}
cert.CertPEM = bytes.NewBuffer(secret.Data[certFileName])
cert.Cert, err = decodeCert(cert.CertPEM.Bytes())
if err != nil {
return
}
cert.PrivKeyPEM = bytes.NewBuffer(secret.Data[privKeyFileName])
cert.PrivKeyRSA, err = decodePrivKey(cert.PrivKeyPEM.Bytes())
if err != nil {
return
}
return
}
func (openVPNPKI *OpenVPNPKI) updateFilesFromSecrets() (err error) {
ca, err := openVPNPKI.secretGetClientCert(secretCA)
if err != nil {
return
}
server, err := openVPNPKI.secretGetClientCert(secretServer)
if err != nil {
return
}
secret, err := openVPNPKI.secretGetByName(secretDHandTA)
takey := secret.Data["ta.key"]
dhparam := secret.Data["dh.pem"]
if _, err := os.Stat(fmt.Sprintf("%s/pki/issued", *easyrsaDirPath)); os.IsNotExist(err) {
err = os.MkdirAll(fmt.Sprintf("%s/pki/issued", *easyrsaDirPath), 0755)
}
if _, err := os.Stat(fmt.Sprintf("%s/pki/private", *easyrsaDirPath)); os.IsNotExist(err) {
err = os.MkdirAll(fmt.Sprintf("%s/pki/private", *easyrsaDirPath), 0755)
}
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/ca.crt", *easyrsaDirPath), ca.CertPEM.Bytes(), 0600)
if err != nil {
return
}
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/issued/server.crt", *easyrsaDirPath), server.CertPEM.Bytes(), 0600)
if err != nil {
return
}
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/private/server.key", *easyrsaDirPath), server.PrivKeyPEM.Bytes(), 0600)
if err != nil {
return
}
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/ta.key", *easyrsaDirPath), takey, 0600)
if err != nil {
return
}
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/dh.pem", *easyrsaDirPath), dhparam, 0600)
if err != nil {
return
}
err = openVPNPKI.updateCRLOnDisk()
return
}
func (openVPNPKI *OpenVPNPKI) updateCRLOnDisk() (err error) {
secret, err := openVPNPKI.secretGetByName(secretCRL)
crl := secret.Data["crl.pem"]
err = ioutil.WriteFile(fmt.Sprintf("%s/pki/crl.pem", *easyrsaDirPath), crl, 0600)
if err != nil {
log.Errorf("error write crl.pem:%s", err.Error())
}
return
}
func (openVPNPKI *OpenVPNPKI) secretGenTaKeyAndDHParam() (err error) {
taKeyPath := "/tmp/ta.key"
cmd := exec.Command("bash", "-c", fmt.Sprintf("/usr/sbin/openvpn --genkey --secret %s", taKeyPath))
stdout, err := cmd.CombinedOutput()
log.Info(fmt.Sprintf("/usr/sbin/openvpn --genkey --secret %s: %s", taKeyPath, string(stdout)))
if err != nil {
return
}
taKey, err := ioutil.ReadFile(taKeyPath)
dhparamPath := "/tmp/dh.pem"
cmd = exec.Command("bash", "-c", fmt.Sprintf("openssl dhparam -out %s 2048", dhparamPath))
_, err = cmd.CombinedOutput()
if err != nil {
return
}
dhparam, err := ioutil.ReadFile(dhparamPath)
secretMetaData := metav1.ObjectMeta{Name: secretDHandTA}
secretData := map[string][]byte{
"ta.key": taKey,
"dh.pem": dhparam,
}
err = openVPNPKI.secretCreate(secretMetaData, secretData, v1.SecretTypeOpaque)
if err != nil {
return
}
return
}
// ccd
func (openVPNPKI *OpenVPNPKI) secretGetCcd(commonName string) (ccd string) {
secret, err := openVPNPKI.secretGetByLabels("name=" + commonName)
if err != nil {
log.Error(err)
return
}
for k, _ := range secret.Data {
if k == "ccd" {
ccd = string(secret.Data["ccd"])
return
}
}
return
}
func (openVPNPKI *OpenVPNPKI) secretUpdateCcd(commonName string, ccd []byte) {
secret, err := openVPNPKI.secretGetByLabels("name=" + commonName)
if err != nil {
log.Error(err)
return
}
secret.Data["ccd"] = ccd
err = openVPNPKI.secretUpdate(secret.ObjectMeta, secret.Data, v1.SecretTypeTLS)
if err != nil {
log.Errorf("secret (%s) update error: %s", secret.Name, err.Error())
}
err = openVPNPKI.updateCcdOnDisk()
if err != nil {
log.Error(err)
}
}
func (openVPNPKI *OpenVPNPKI) updateCcdOnDisk() (err error) {
secrets, err := openVPNPKI.secretsGetByLabels("index.txt=,type=clientAuth")
if err != nil {
return
}
if _, err := os.Stat(*ccdDir); os.IsNotExist(err) {
err = os.MkdirAll(*ccdDir, 0755)
}
for _, secret := range secrets.Items {
ccd := secret.Data["ccd"]
if len(ccd) > 0 {
err = ioutil.WriteFile(fmt.Sprintf("%s/%s", *ccdDir, secret.Labels["name"]), ccd, 0644)
if err != nil {
log.Error(err)
}
}
}
return
}
//
func (openVPNPKI *OpenVPNPKI) secretCreate(objectMeta metav1.ObjectMeta, data map[string][]byte, secretType v1.SecretType) (err error) {
if objectMeta.Name == "nil" {
err = errors.New("secret name not defined")
return
}
secret := &v1.Secret{
TypeMeta: metav1.TypeMeta{},
ObjectMeta: objectMeta,
Data: data,
Type: secretType,
}
_, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Create(context.TODO(), secret, metav1.CreateOptions{})
return
}
func (openVPNPKI *OpenVPNPKI) secretUpdate(objectMeta metav1.ObjectMeta, data map[string][]byte, secretType v1.SecretType) (err error) {
secret := &v1.Secret{
TypeMeta: metav1.TypeMeta{},
ObjectMeta: objectMeta,
Data: data,
Type: secretType,
}
_, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Update(context.TODO(), secret, metav1.UpdateOptions{})
return
}
func (openVPNPKI *OpenVPNPKI) secretGetByName(name string) (secret *v1.Secret, err error) {
secret, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Get(context.TODO(), name, metav1.GetOptions{})
return
}
func (openVPNPKI *OpenVPNPKI) secretsGetByLabels(labels string) (secrets *v1.SecretList, err error) {
secrets, err = openVPNPKI.KubeClient.CoreV1().Secrets(namespace).List(context.TODO(), metav1.ListOptions{LabelSelector: labels})
if err != nil {
return
}
if len(secrets.Items) == 0 {
log.Debugf("secrets with labels %s not found", labels)
}
return
}
func (openVPNPKI *OpenVPNPKI) secretGetByLabels(labels string) (secret *v1.Secret, err error) {
secrets, err := openVPNPKI.secretsGetByLabels(labels)
if err != nil {
return
}
if len(secrets.Items) > 1 {
err = errors.New(fmt.Sprintf("found more than one secret with labels %s", labels))
return
}
if len(secrets.Items) == 0 {
err = errors.New(fmt.Sprintf("secret not found"))
return
}
secret = &secrets.Items[0]
return
}
func (openVPNPKI *OpenVPNPKI) secretCheckExists(name string) (bool, string) {
secret, err := openVPNPKI.KubeClient.CoreV1().Secrets(namespace).Get(context.TODO(), name, metav1.GetOptions{})
if err != nil {
log.Debug(err)
return false, ""
}
return true, secret.ResourceVersion
}
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