Update etc/kayobe/cephadm.yml

Co-authored-by: Alex-Welsh <112560678+Alex-Welsh@users.noreply.github.com>

Author: MoteHue

etc/kayobe/cephadm.yml

@@ -89,14 +89,14 @@ cephadm_cluster_network: "{{ storage_mgmt_net_name | net_cidr }}"
 cephadm_commands_pre: "{{ cephadm_commands_pre_default + cephadm_commands_pre_extra }}"
 cephadm_commands_post: "{{ cephadm_commands_post_default + cephadm_commands_post_extra }}"
 
-cephadm_commands_pre_default:
+cephadm_commands_pre_default: []
 cephadm_commands_post_default:
 {% if kolla_enable_prometheus_ceph_mgr_exporter %}
   - "mgr module enable prometheus"
 {% endif %}
 
-cephadm_commands_pre_extra:
-cephadm_commands_post_extra:
+cephadm_commands_pre_extra: []
+cephadm_commands_post_extra: []
 
 ###############################################################################
 # Kolla Ceph auto-configuration.