[reproducer] Wait for controller-0 SSH before configuring

After controller-0 reboots, SSH may become transiently unreachable
while background system initialization completes. The configure_controller
block delegates tasks to controller-0 without verifying connectivity
first, causing intermittent UNREACHABLE failures on the install_ca task.

Add wait_for_connection at the start of the delegate_to block to ensure
controller-0 is fully accessible before proceeding.

Signed-off-by: Miguel Angel Nieto Jimenez <mnietoji@redhat.com>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: 2 people

roles/reproducer/tasks/configure_controller.yml

@@ -29,6 +29,11 @@
         default('zuul')
       }}
   block:
+    - name: Wait for controller-0 SSH to be ready
+      ansible.builtin.wait_for_connection:
+        timeout: 300
+        sleep: 5
+
     - name: Ensure directories exist
       ansible.builtin.file:
         path: "{{ cifmw_reproducer_controller_basedir }}/{{ item }}"