mirror of
https://github.com/cirruslabs/orchard.git
synced 2026-09-30 12:01:15 +02:00
Fedor Korotkov
cdf5c5eb00
* Simplified bootstrapping of a cluster Introduced a new convention about a pre-defined `bootstrap-admin` account for `orchard controller run`. Providing `ORCHARD_BOOTSTRAP_ADMIN_TOKEN` will auto-create such user for easier configuration. `bootstrap-admin` can be used for creating other service accounts on the first run and after that can be disposed. Also change `orchard worker run` to expect controller URL as the only parameter and a bootstrap token passed via an argument instead of using a context that might not be created. * Missing error check
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
package controller
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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cryptorand "crypto/rand"
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"crypto/tls"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"errors"
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"fmt"
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"github.com/cirruslabs/orchard/internal/controller"
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"github.com/cirruslabs/orchard/internal/netconstants"
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"math/big"
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"time"
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)
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var ErrInitFailed = errors.New("controller initialization failed")
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var controllerCertPath string
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var controllerKeyPath string
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func FindControllerCertificate(dataDir *controller.DataDir) (controllerCert tls.Certificate, err error) {
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if controllerCertPath != "" || controllerKeyPath != "" {
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// if external certificate is specified, use it
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if err = checkBothCertAndKeyAreSpecified(); err != nil {
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return controllerCert, err
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}
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return tls.LoadX509KeyPair(controllerCertPath, controllerCertPath)
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} else if !dataDir.ControllerCertificateExists() {
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// otherwise, generate a self-signed certificate if it's not already present
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controllerCert, err = GenerateSelfSignedControllerCertificate()
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if err != nil {
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return controllerCert, err
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}
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if err = dataDir.SetControllerCertificate(controllerCert); err != nil {
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return controllerCert, err
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}
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}
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return
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}
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func checkBothCertAndKeyAreSpecified() error {
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if controllerCertPath == "" {
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return fmt.Errorf("%w: when --controller-key is specified, --controller-cert must be specified too",
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ErrInitFailed)
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}
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if controllerKeyPath == "" {
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return fmt.Errorf("%w: when --controller-cert is specified, --controller-key must be specified too",
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ErrInitFailed)
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}
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return nil
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}
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func GenerateSelfSignedControllerCertificate() (tls.Certificate, error) {
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privateKey, err := ecdsa.GenerateKey(elliptic.P384(), cryptorand.Reader)
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if err != nil {
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return tls.Certificate{}, err
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}
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privateKeyBytes, err := x509.MarshalPKCS8PrivateKey(privateKey)
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if err != nil {
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return tls.Certificate{}, err
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}
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now := time.Now()
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cert := &x509.Certificate{
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SerialNumber: big.NewInt(0),
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Subject: pkix.Name{
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CommonName: "Orchard Controller",
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},
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NotBefore: now,
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NotAfter: now.AddDate(10, 0, 0),
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BasicConstraintsValid: true,
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KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth, x509.ExtKeyUsageServerAuth},
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DNSNames: []string{netconstants.DefaultControllerServerName},
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}
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certBytes, err := x509.CreateCertificate(cryptorand.Reader, cert, cert, privateKey.Public(), privateKey)
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if err != nil {
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return tls.Certificate{}, err
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}
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certPEMBytes := pem.EncodeToMemory(&pem.Block{
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Type: "CERTIFICATE",
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Bytes: certBytes,
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})
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privateKeyPEMBytes := pem.EncodeToMemory(&pem.Block{
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Type: "PRIVATE KEY",
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Bytes: privateKeyBytes,
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})
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return tls.X509KeyPair(certPEMBytes, privateKeyPEMBytes)
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}
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