Reapply "Merge branch 'canary' into kucherenko/canary"

This reverts commit e6cb6454db.

apps/monitoring/middleware/auth.go

@@ -0,0 +1,39 @@
+package middleware
+
+import (
+	"strings"
+
+	"github.com/gofiber/fiber/v2"
+	"github.com/mauriciogm/dokploy/apps/monitoring/config"
+)
+
+func AuthMiddleware() fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		expectedToken := config.GetMetricsConfig().Server.Token
+
+		authHeader := c.Get("Authorization")
+		if authHeader == "" {
+			return c.Status(401).JSON(fiber.Map{
+				"error": "Authorization header is required",
+			})
+		}
+
+		// Check if the header starts with "Bearer "
+		if !strings.HasPrefix(authHeader, "Bearer ") {
+			return c.Status(401).JSON(fiber.Map{
+				"error": "Invalid authorization format. Use 'Bearer TOKEN'",
+			})
+		}
+
+		// Extract the token
+		token := strings.TrimPrefix(authHeader, "Bearer ")
+
+		if token != expectedToken {
+			return c.Status(401).JSON(fiber.Map{
+				"error": "Invalid token",
+			})
+		}
+
+		return c.Next()
+	}
+}