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Merge pull request #1746 from aledbf/clean-framework
Cleanup of e2e helpers
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| package framework | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "crypto/rand" | ||
| "crypto/rsa" | ||
| "crypto/x509" | ||
| "crypto/x509/pkix" | ||
| "encoding/pem" | ||
| "fmt" | ||
| "io" | ||
| "math/big" | ||
| "net" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/client-go/kubernetes" | ||
| ) | ||
|
|
||
| const ( | ||
| rsaBits = 2048 | ||
| validFor = 365 * 24 * time.Hour | ||
| ) | ||
|
|
||
| // CreateIngressTLSSecret creates a secret containing TLS certificates for the given Ingress. | ||
| // If a secret with the same name already pathExists in the namespace of the | ||
| // Ingress, it's updated. | ||
| func CreateIngressTLSSecret(client kubernetes.Interface, hosts []string, secreName, namespace string) (host string, rootCA, privKey []byte, err error) { | ||
| var k, c bytes.Buffer | ||
| host = strings.Join(hosts, ",") | ||
| if err = generateRSACerts(host, true, &k, &c); err != nil { | ||
| return | ||
| } | ||
| cert := c.Bytes() | ||
| key := k.Bytes() | ||
| secret := &v1.Secret{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: secreName, | ||
| }, | ||
| Data: map[string][]byte{ | ||
| v1.TLSCertKey: cert, | ||
| v1.TLSPrivateKeyKey: key, | ||
| }, | ||
| } | ||
| var s *v1.Secret | ||
| if s, err = client.CoreV1().Secrets(namespace).Get(secreName, metav1.GetOptions{}); err == nil { | ||
| s.Data = secret.Data | ||
| _, err = client.CoreV1().Secrets(namespace).Update(s) | ||
| } else { | ||
| _, err = client.CoreV1().Secrets(namespace).Create(secret) | ||
| } | ||
| return host, cert, key, err | ||
| } | ||
|
|
||
| // generateRSACerts generates a basic self signed certificate using a key length | ||
| // of rsaBits, valid for validFor time. | ||
| func generateRSACerts(host string, isCA bool, keyOut, certOut io.Writer) error { | ||
| if len(host) == 0 { | ||
| return fmt.Errorf("Require a non-empty host for client hello") | ||
| } | ||
| priv, err := rsa.GenerateKey(rand.Reader, rsaBits) | ||
| if err != nil { | ||
| return fmt.Errorf("Failed to generate key: %v", err) | ||
| } | ||
| notBefore := time.Now() | ||
| notAfter := notBefore.Add(validFor) | ||
|
|
||
| serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128) | ||
| serialNumber, err := rand.Int(rand.Reader, serialNumberLimit) | ||
|
|
||
| if err != nil { | ||
| return fmt.Errorf("failed to generate serial number: %s", err) | ||
| } | ||
| template := x509.Certificate{ | ||
| SerialNumber: serialNumber, | ||
| Subject: pkix.Name{ | ||
| CommonName: "default", | ||
| Organization: []string{"Acme Co"}, | ||
| }, | ||
| NotBefore: notBefore, | ||
| NotAfter: notAfter, | ||
|
|
||
| KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature, | ||
| ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth}, | ||
| BasicConstraintsValid: true, | ||
| } | ||
|
|
||
| hosts := strings.Split(host, ",") | ||
| for _, h := range hosts { | ||
| if ip := net.ParseIP(h); ip != nil { | ||
| template.IPAddresses = append(template.IPAddresses, ip) | ||
| } else { | ||
| template.DNSNames = append(template.DNSNames, h) | ||
| } | ||
| } | ||
|
|
||
| if isCA { | ||
| template.IsCA = true | ||
| template.KeyUsage |= x509.KeyUsageCertSign | ||
| } | ||
|
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||
| derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &priv.PublicKey, priv) | ||
| if err != nil { | ||
| return fmt.Errorf("Failed to create certificate: %s", err) | ||
| } | ||
| if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil { | ||
| return fmt.Errorf("Failed creating cert: %v", err) | ||
| } | ||
| if err := pem.Encode(keyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(priv)}); err != nil { | ||
| return fmt.Errorf("Failed creating keay: %v", err) | ||
| } | ||
| return nil | ||
| } |
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