Use ansible.builtin.ping instead of wait_for

This is a more reliable means of testing ssh on the remote machine.

ansible/playbooks/infra-deploy.yaml

@@ -367,15 +367,13 @@
                 ServerAliveCountMax 30
             dest: "{{ lookup('env', 'HOME') }}/.ssh/{{ os_keypair_name }}.config"
             mode: "0640"
-        - name: Wait 300 seconds for port 22 to become open and contain "OpenSSH"
-          ansible.builtin.wait_for:
-            port: 22
-            host: "{{ bastion_ip }}"
-            search_regex: OpenSSH
-            delay: 10
-          vars:
-            ansible_connection: ssh
-            ansible_python_interpreter: null
+        - name: Check SSH connection to bastion
+          ansible.builtin.ping:
+          delegate_to: "{{ bastion_ip }}"
+          register: ping_result
+          until: ping_result is succeeded
+          retries: 60
+          delay: 5
     - name: Get server info from the cluster
       openstack.cloud.server_info:
         cloud: "{{ os_cloud_name }}"