upaas/internal/ssh/keygen.go
sneak 3f9d83c436 Initial commit with server startup infrastructure
Core infrastructure:
- Uber fx dependency injection
- Chi router with middleware stack
- SQLite database with embedded migrations
- Embedded templates and static assets
- Structured logging with slog

Features implemented:
- Authentication (login, logout, session management, argon2id hashing)
- App management (create, edit, delete, list)
- Deployment pipeline (clone, build, deploy, health check)
- Webhook processing for Gitea
- Notifications (ntfy, Slack)
- Environment variables, labels, volumes per app
- SSH key generation for deploy keys

Server startup:
- Server.Run() starts HTTP server on configured port
- Server.Shutdown() for graceful shutdown
- SetupRoutes() wires all handlers with chi router
2025-12-29 15:46:03 +07:00

54 lines
1.3 KiB
Go

// Package ssh provides SSH key generation utilities.
package ssh
import (
"crypto/ed25519"
"crypto/rand"
"encoding/pem"
"fmt"
"golang.org/x/crypto/ssh"
)
// KeyPair contains an SSH key pair.
type KeyPair struct {
PrivateKey string
PublicKey string
}
// GenerateKeyPair generates a new Ed25519 SSH key pair.
func GenerateKeyPair() (*KeyPair, error) {
// Generate Ed25519 key pair
publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
if err != nil {
return nil, fmt.Errorf("failed to generate key pair: %w", err)
}
// Convert private key to PEM format
privateKeyPEM, err := ssh.MarshalPrivateKey(privateKey, "")
if err != nil {
return nil, fmt.Errorf("failed to marshal private key: %w", err)
}
// Convert public key to authorized_keys format
sshPublicKey, err := ssh.NewPublicKey(publicKey)
if err != nil {
return nil, fmt.Errorf("failed to create SSH public key: %w", err)
}
return &KeyPair{
PrivateKey: string(pem.EncodeToMemory(privateKeyPEM)),
PublicKey: string(ssh.MarshalAuthorizedKey(sshPublicKey)),
}, nil
}
// ValidatePrivateKey validates that a private key is valid.
func ValidatePrivateKey(privateKeyPEM string) error {
_, err := ssh.ParsePrivateKey([]byte(privateKeyPEM))
if err != nil {
return fmt.Errorf("invalid private key: %w", err)
}
return nil
}