Set scheduler.max_attempts for nova conductor

In order to honour configured max number of attempts
it has to be presented in nova.conf inside of
nova_conductor container, otherwise the default value
of 3 will be used

Closes-Bug: #2003587
Change-Id: I928af332b8658223444594f96417830233057284

ansible/roles/nova-cell/templates/nova.conf.j2

@@ -205,6 +205,11 @@ helper_command=sudo nova-rootwrap /etc/nova/rootwrap.conf privsep-helper --confi
 [guestfs]
 debug = {{ nova_logging_debug }}
 
+{% if service_name == 'nova-conductor' %}
+[scheduler]
+max_attempts = 10
+{% endif %}
+
 [placement]
 auth_type = password
 auth_url = {{ keystone_internal_url }}