mirror of
https://github.com/alibaba/higress.git
synced 2026-02-25 05:01:19 +08:00
124 lines
3.6 KiB
Go
124 lines
3.6 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubernetes
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import (
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"bytes"
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"crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"crypto/x509/pkix"
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"fmt"
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"io"
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"math/big"
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"net"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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// ensure auth plugins are loaded
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_ "k8s.io/client-go/plugin/pkg/client/auth"
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"github.com/alibaba/higress/test/e2e/conformance/utils/cert"
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)
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// MustCreateSelfSignedCertSecret creates a self-signed SSL certificate and stores it in a secret
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func MustCreateSelfSignedCertSecret(t *testing.T, namespace, secretName string, hosts []string) *corev1.Secret {
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require.Greater(t, len(hosts), 0, "require a non-empty hosts for Subject Alternate Name values")
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var serverKey, serverCert bytes.Buffer
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host := strings.Join(hosts, ",")
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require.NoError(t, generateRSACert(host, &serverKey, &serverCert), "failed to generate RSA certificate")
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return ConstructTLSSecret(namespace, secretName, serverCert.Bytes(), serverKey.Bytes())
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}
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// ConstructTLSSecret constructs a secret of type "kubernetes.io/tls"
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func ConstructTLSSecret(namespace, secretName string, cert, key []byte) *corev1.Secret {
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return &corev1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: namespace,
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Name: secretName,
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},
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Type: corev1.SecretTypeTLS,
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Data: map[string][]byte{
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corev1.TLSCertKey: cert,
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corev1.TLSPrivateKeyKey: key,
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},
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}
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}
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// ConstructCASecret construct a CA secret of type "Opaque"
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func ConstructCASecret(namespace, secretName string, cert []byte) *corev1.Secret {
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return &corev1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: namespace,
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Name: secretName,
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},
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Type: corev1.SecretTypeOpaque,
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Data: map[string][]byte{
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corev1.ServiceAccountRootCAKey: cert,
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},
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}
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}
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// generateRSACert generates a basic self signed certificate valid for a year
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func generateRSACert(host string, keyOut, certOut io.Writer) error {
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notBefore := time.Now()
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notAfter := notBefore.Add(cert.ValidFor)
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serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
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serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
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if err != nil {
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return fmt.Errorf("failed to generate serial number: %w", err)
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}
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template := &x509.Certificate{
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SerialNumber: serialNumber,
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Subject: pkix.Name{
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CommonName: "default",
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Organization: []string{"Higress E2E Test"},
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},
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NotBefore: notBefore,
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NotAfter: notAfter,
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KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
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BasicConstraintsValid: true,
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}
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hosts := strings.Split(host, ",")
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for _, h := range hosts {
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if ip := net.ParseIP(h); ip != nil {
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template.IPAddresses = append(template.IPAddresses, ip)
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} else {
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template.DNSNames = append(template.DNSNames, h)
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}
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}
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priv, err := rsa.GenerateKey(rand.Reader, cert.RSABits)
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if err != nil {
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return fmt.Errorf("failed to generate key: %w", err)
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}
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certOut, keyOut, err = cert.GenerateCert(template, priv, template, nil)
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if err != nil {
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return fmt.Errorf("failed to generate rsa certificate: %w", err)
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}
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return nil
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}
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