diff --git a/outputs.tf b/outputs.tf
new file mode 100644
index 0000000..9d2aea2
--- /dev/null
+++ b/outputs.tf
@@ -0,0 +1,4 @@
+output "lambda_function_arn" {
+  description = "The ARN of the lambda-promtail function."
+  value       = aws_lambda_function.this.arn
+}