security: hardening по результатам аудита безопасности

cmd/synapse-backupper/healthcheck.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+func newHealthcheckCmd() *cobra.Command {
+	var port int
+
+	cmd := &cobra.Command{
+		Use:    "healthcheck",
+		Short:  "Check the scheduler health endpoint",
+		Hidden: true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			ctx, cancel := context.WithTimeout(cmd.Context(), 3*time.Second)
+			defer cancel()
+
+			url := fmt.Sprintf("http://127.0.0.1:%d/healthz", port)
+			request, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
+			if err != nil {
+				return fmt.Errorf("build health request: %w", err)
+			}
+
+			response, err := http.DefaultClient.Do(request)
+			if err != nil {
+				return fmt.Errorf("health request failed: %w", err)
+			}
+			defer response.Body.Close()
+
+			if response.StatusCode != http.StatusOK {
+				return fmt.Errorf("health check returned status %d", response.StatusCode)
+			}
+			return nil
+		},
+	}
+
+	cmd.Flags().IntVar(&port, "port", 8080, "Health check server port")
+
+	return cmd
+}