forked from wrenn/wrenn
v0.1.0 (#17)
This commit is contained in:
@ -1,191 +1,15 @@
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package main
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import (
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"context"
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"log/slog"
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"net/http"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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import "git.omukk.dev/wrenn/wrenn/pkg/cpserver"
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"github.com/jackc/pgx/v5/pgxpool"
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"github.com/redis/go-redis/v9"
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"git.omukk.dev/wrenn/wrenn/internal/api"
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"git.omukk.dev/wrenn/wrenn/internal/audit"
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"git.omukk.dev/wrenn/wrenn/internal/auth"
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"git.omukk.dev/wrenn/wrenn/internal/auth/oauth"
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"git.omukk.dev/wrenn/wrenn/internal/channels"
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"git.omukk.dev/wrenn/wrenn/internal/config"
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"git.omukk.dev/wrenn/wrenn/internal/db"
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"git.omukk.dev/wrenn/wrenn/internal/lifecycle"
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"git.omukk.dev/wrenn/wrenn/internal/scheduler"
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// Set via -ldflags at build time.
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var (
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version = "dev"
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commit = "unknown"
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)
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func main() {
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slog.SetDefault(slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
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Level: slog.LevelDebug,
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})))
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cfg := config.Load()
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if len(cfg.JWTSecret) < 32 {
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slog.Error("JWT_SECRET must be at least 32 characters")
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os.Exit(1)
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}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Database connection pool.
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pool, err := pgxpool.New(ctx, cfg.DatabaseURL)
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if err != nil {
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slog.Error("failed to connect to database", "error", err)
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os.Exit(1)
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}
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defer pool.Close()
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if err := pool.Ping(ctx); err != nil {
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slog.Error("failed to ping database", "error", err)
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os.Exit(1)
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}
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slog.Info("connected to database")
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queries := db.New(pool)
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// Redis client.
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redisOpts, err := redis.ParseURL(cfg.RedisURL)
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if err != nil {
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slog.Error("failed to parse REDIS_URL", "error", err)
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os.Exit(1)
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}
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rdb := redis.NewClient(redisOpts)
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defer rdb.Close()
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if err := rdb.Ping(ctx).Err(); err != nil {
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slog.Error("failed to ping redis", "error", err)
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os.Exit(1)
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}
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slog.Info("connected to redis")
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// mTLS is mandatory — parse internal CA for CP↔agent communication.
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if cfg.CACert == "" || cfg.CAKey == "" {
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slog.Error("WRENN_CA_CERT and WRENN_CA_KEY are required — mTLS is mandatory for CP↔agent communication")
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os.Exit(1)
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}
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ca, err := auth.ParseCA(cfg.CACert, cfg.CAKey)
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if err != nil {
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slog.Error("failed to parse mTLS CA from environment", "error", err)
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os.Exit(1)
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}
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slog.Info("mTLS enabled: CA loaded")
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// Host client pool — manages Connect RPC clients to host agents.
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cpCertStore, err := auth.NewCPCertStore(ca)
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if err != nil {
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slog.Error("failed to issue CP client certificate", "error", err)
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os.Exit(1)
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}
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// Renew the CP client certificate periodically so it never expires
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// while the control plane is running (TTL = 24h, renewal = every 12h).
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go func() {
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ticker := time.NewTicker(auth.CPCertRenewInterval)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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if err := cpCertStore.Refresh(); err != nil {
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slog.Error("failed to renew CP client certificate", "error", err)
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} else {
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slog.Info("CP client certificate renewed")
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}
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}
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}
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}()
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hostPool := lifecycle.NewHostClientPoolTLS(auth.CPClientTLSConfig(ca, cpCertStore))
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slog.Info("host client pool: mTLS enabled")
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// Scheduler — picks a host for each new sandbox (round-robin for now).
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hostScheduler := scheduler.NewRoundRobinScheduler(queries)
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// OAuth provider registry.
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oauthRegistry := oauth.NewRegistry()
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if cfg.OAuthGitHubClientID != "" && cfg.OAuthGitHubClientSecret != "" {
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if cfg.CPPublicURL == "" {
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slog.Error("CP_PUBLIC_URL must be set when OAuth providers are configured")
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os.Exit(1)
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}
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callbackURL := strings.TrimRight(cfg.CPPublicURL, "/") + "/auth/oauth/github/callback"
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ghProvider := oauth.NewGitHubProvider(cfg.OAuthGitHubClientID, cfg.OAuthGitHubClientSecret, callbackURL)
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oauthRegistry.Register(ghProvider)
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slog.Info("registered OAuth provider", "provider", "github")
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}
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// Channels: publisher, service, dispatcher.
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if len(cfg.EncryptionKeyHex) != 64 {
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slog.Error("WRENN_ENCRYPTION_KEY must be a hex-encoded 32-byte key (64 hex chars)")
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os.Exit(1)
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}
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channelPub := channels.NewPublisher(rdb)
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channelSvc := &channels.Service{DB: queries, EncKey: cfg.EncryptionKey}
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channelDispatcher := channels.NewDispatcher(rdb, queries, cfg.EncryptionKey)
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// Shared audit logger with event publishing.
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al := audit.NewWithPublisher(queries, channelPub)
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// API server.
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srv := api.New(queries, hostPool, hostScheduler, pool, rdb, []byte(cfg.JWTSecret), oauthRegistry, cfg.OAuthRedirectURL, ca, al, channelSvc)
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// Start template build workers (2 concurrent).
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stopBuildWorkers := srv.BuildSvc.StartWorkers(ctx, 2)
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defer stopBuildWorkers()
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// Start channel event dispatcher.
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channelDispatcher.Start(ctx)
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// Start host monitor (passive + active reconciliation every 30s).
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monitor := api.NewHostMonitor(queries, hostPool, al, 30*time.Second)
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monitor.Start(ctx)
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// Start metrics sampler (records per-team sandbox stats every 10s).
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sampler := api.NewMetricsSampler(queries, 10*time.Second)
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sampler.Start(ctx)
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// Wrap the API handler with the sandbox proxy so that requests with
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// {port}-{sandbox_id}.{domain} Host headers are routed to the sandbox's
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// host agent. All other requests pass through to the normal API router.
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proxyWrapper := api.NewSandboxProxyWrapper(srv.Handler(), queries, hostPool)
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httpServer := &http.Server{
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Addr: cfg.ListenAddr,
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Handler: proxyWrapper,
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}
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// Graceful shutdown on signal.
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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sig := <-sigCh
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slog.Info("received signal, shutting down", "signal", sig)
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cancel()
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shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 30*time.Second)
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defer shutdownCancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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slog.Error("http server shutdown error", "error", err)
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}
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}()
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slog.Info("control plane starting", "addr", cfg.ListenAddr)
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if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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slog.Error("http server error", "error", err)
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os.Exit(1)
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}
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slog.Info("control plane stopped")
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cpserver.Run(
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cpserver.WithVersion(version, commit),
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)
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}
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