79 lines
2 KiB
Go
79 lines
2 KiB
Go
package main
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import (
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"context"
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"flag"
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"fmt"
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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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"edp.buildth.ing/DevFW-CICD/forgejo-runner-resource-collector/internal/receiver"
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)
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const (
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defaultAddr = ":8080"
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defaultDBPath = "metrics.db"
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)
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func main() {
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addr := flag.String("addr", defaultAddr, "HTTP listen address")
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dbPath := flag.String("db", defaultDBPath, "SQLite database path")
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readToken := flag.String("read-token", os.Getenv("RECEIVER_READ_TOKEN"), "Pre-shared token for read endpoints (or set RECEIVER_READ_TOKEN)")
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hmacKey := flag.String("hmac-key", os.Getenv("RECEIVER_HMAC_KEY"), "Secret key for push token generation/validation (or set RECEIVER_HMAC_KEY)")
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flag.Parse()
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logger := slog.New(slog.NewJSONHandler(os.Stderr, &slog.HandlerOptions{
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Level: slog.LevelInfo,
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}))
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store, err := receiver.NewStore(*dbPath)
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if err != nil {
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logger.Error("failed to open database", slog.String("error", err.Error()))
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os.Exit(1)
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}
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defer func() { _ = store.Close() }()
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handler := receiver.NewHandler(store, logger, *readToken, *hmacKey)
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mux := http.NewServeMux()
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handler.RegisterRoutes(mux)
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server := &http.Server{
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Addr: *addr,
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Handler: mux,
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ReadTimeout: 10 * time.Second,
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WriteTimeout: 10 * time.Second,
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}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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sig := <-sigChan
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logger.Info("received signal, shutting down", slog.String("signal", sig.String()))
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cancel()
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shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer shutdownCancel()
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_ = server.Shutdown(shutdownCtx)
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}()
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logger.Info("starting metrics receiver",
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slog.String("addr", *addr),
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slog.String("db", *dbPath),
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)
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if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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fmt.Fprintf(os.Stderr, "error: %v\n", err)
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os.Exit(1)
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}
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<-ctx.Done()
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logger.Info("receiver stopped gracefully")
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}
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