CFME: set default value for openshift_hosted_infra_selector

roles/openshift_management/defaults/main.yml

@@ -6,7 +6,7 @@ openshift_management_project_description: CloudForms Management Engine
 # Number of retries when waiting for the app to start (retried every 30 seconds)
 openshift_management_pod_rollout_retries: 30
 # Node selector for project:
-openshift_management_nodeselector: "{{ openshift_hosted_infra_selector }}"
+openshift_management_nodeselector: "{{ openshift_hosted_infra_selector | default('node-role.kubernetes.io/infra=true') | map_from_pairs }}"
 
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 # BASE TEMPLATE AND DATABASE OPTIONS