chore(e2e): Wait until worker log shows connection is ready (#6676)

(cherry picked from commit 7a8425212e8de2b716e451828814c6177442084f)

enos/modules/docker_check_worker_log/main.tf

@@ -0,0 +1,23 @@
+# Copyright IBM Corp. 2020, 2026
+# SPDX-License-Identifier: BUSL-1.1
+
+terraform {
+  required_providers {
+    enos = {
+      source = "registry.terraform.io/hashicorp-forge/enos"
+    }
+  }
+}
+
+variable "container_name" {
+  description = "Name of docker container to inspect"
+}
+
+variable "worker_id" {
+  description = "worker id"
+  type        = string
+}
+
+resource "enos_local_exec" "check_log" {
+  inline = ["timeout 10s bash -c 'until docker logs ${var.container_name} 2>&1 | grep \"new control plane connection saved.*${var.worker_id}\"; do sleep 2; done'"]
+}