[client] Set up signal to generate debug bundles (#3683)

client/cmd/debug_unix.go

@@ -0,0 +1,39 @@
+//go:build unix
+
+package cmd
+
+import (
+	"context"
+	"os"
+	"os/signal"
+	"syscall"
+
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal"
+	"github.com/netbirdio/netbird/client/internal/peer"
+)
+
+func SetupDebugHandler(
+	ctx context.Context,
+	config *internal.Config,
+	recorder *peer.Status,
+	connectClient *internal.ConnectClient,
+	logFilePath string,
+) {
+	usr1Ch := make(chan os.Signal, 1)
+
+	signal.Notify(usr1Ch, syscall.SIGUSR1)
+
+	go func() {
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-usr1Ch:
+				log.Info("Received SIGUSR1. Triggering debug bundle generation.")
+				go generateDebugBundle(config, recorder, connectClient, logFilePath)
+			}
+		}
+	}()
+}