Nik Afiq
39b7d6d4b4
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New standalone service that receives authenticated HTTP POSTs (e.g. from a cronjob elsewhere on the home network) and posts them to a Discord channel via an Incoming Webhook. Fire-and-forget, no dependency on discord-bot's bot session at all - mirrors alexa-bridge's precedent of a small bridge service with its own HTTP listener and auth rather than adding an inbound edge to an existing internal service. Wires alert-bridge into go.work, CI (changes filter, test job, new build-alert-bridge job), and the other five Dockerfiles' COPY lines. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
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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"syscall"
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"time"
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"github.com/joho/godotenv"
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httpadapter "gitea.nik4nao.com/nik/home-services/alert-bridge/internal/adapters/primary/http"
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"gitea.nik4nao.com/nik/home-services/alert-bridge/internal/adapters/secondary/discordwebhook"
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"gitea.nik4nao.com/nik/home-services/alert-bridge/internal/app"
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"gitea.nik4nao.com/nik/home-services/alert-bridge/internal/config"
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"gitea.nik4nao.com/nik/home-services/alert-bridge/internal/logger"
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"gitea.nik4nao.com/nik/home-services/alert-bridge/internal/telemetry"
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)
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var version = "dev"
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func main() {
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_ = godotenv.Load()
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cfg, err := config.Load()
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if err != nil {
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os.Stderr.WriteString("config error: " + err.Error() + "\n")
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os.Exit(1)
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}
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log := logger.New(cfg.LogFormat, cfg.LogLevel)
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slog.SetDefault(log)
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log.Info("starting alert-bridge",
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"version", version,
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"http_port", cfg.HTTPPort,
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"log_level", cfg.LogLevel,
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"log_format", cfg.LogFormat,
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)
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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ctx = logger.WithLogger(ctx, log)
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shutdown, err := telemetry.Setup(ctx, "alert-bridge", version, cfg)
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if err != nil {
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log.Error("telemetry setup failed", "err", err)
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os.Exit(1)
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}
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if cfg.OTELEndpoint != "" {
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log.Info("telemetry enabled", "endpoint", cfg.OTELEndpoint)
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} else {
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log.Debug("telemetry disabled")
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}
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notifier := discordwebhook.New(cfg.DiscordWebhookURL, cfg.MentionUserID)
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alertApp := app.NewAlertApp(notifier)
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alertHandler := httpadapter.NewHandler(alertApp, cfg.APIKey)
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mux := http.NewServeMux()
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mux.Handle("POST /alerts", alertHandler)
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mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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})
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srv := &http.Server{
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Addr: ":" + cfg.HTTPPort,
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Handler: mux,
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ReadHeaderTimeout: 5 * time.Second,
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}
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go func() {
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log.Info("alert-bridge listening", "addr", srv.Addr)
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if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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log.Error("serve failed", "err", err)
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}
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}()
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<-ctx.Done()
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log.Info("shutdown signal received, draining")
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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log.Error("http server shutdown failed", "err", err)
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}
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log.Info("shutdown complete")
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if err := shutdown(context.Background()); err != nil {
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log.Error("telemetry shutdown error", "err", err)
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}
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}
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