Use async/poll on drain tasks to prevent SSH connection timeouts (#13081)

roles/remove_node/pre_remove/tasks/main.yml

@@ -17,6 +17,8 @@
       --grace-period {{ drain_grace_period }}
       --timeout {{ drain_timeout }}
       --delete-emptydir-data {{ kube_override_hostname }}
+  async: "{{ (drain_timeout | regex_replace('s$', '') | int) + 120 }}"
+  poll: 15
   when:
     - groups['kube_control_plane'] | length > 0
     # ignore servers that are not nodes

roles/upgrade/pre-upgrade/tasks/main.yml

@@ -59,6 +59,8 @@
         --timeout {{ drain_timeout }}
         --delete-emptydir-data {{ kube_override_hostname | default(inventory_hostname) }}
         {% if drain_pod_selector %}--pod-selector '{{ drain_pod_selector }}'{% endif %}
+      async: "{{ (drain_timeout | regex_replace('s$', '') | int) + 120 }}"
+      poll: 15
       when: drain_nodes
       register: result
       failed_when:
@@ -82,6 +84,8 @@
         --delete-emptydir-data {{ kube_override_hostname | default(inventory_hostname) }}
         {% if drain_pod_selector %}--pod-selector '{{ drain_pod_selector }}'{% endif %}
         --disable-eviction
+      async: "{{ (drain_fallback_timeout | regex_replace('s$', '') | int) + 120 }}"
+      poll: 15
       register: drain_fallback_result
       until: drain_fallback_result.rc == 0
       retries: "{{ drain_fallback_retries }}"