Add a nonce command

Change-Id: I93301138890e2df0b550cddcf43f47c5e826a2f2
diff --git a/playbooks/setup-openstack-storpool/pre.yaml b/playbooks/setup-openstack-storpool/pre.yaml
index 458d8eb..5e501b2 100644
--- a/playbooks/setup-openstack-storpool/pre.yaml
+++ b/playbooks/setup-openstack-storpool/pre.yaml
@@ -344,7 +344,7 @@
     - name: Provision StorPool Deployment Configuration 3
       no_log: true
       ansible.builtin.command:
-        argv: [ "ssh", "-o", "StrictHostKeyChecking=accept-new", "{{ item }}" ]
+        argv: [ "ssh", "-o", "StrictHostKeyChecking=accept-new", "{{ item }}", "exit", "0" ]
       loop:
         - "{{ storpool_node_ip }}"
         - "{{ openstack_node_ip }}"