[kvm]: fix nat-rule-url for kvm-cluster

software/kvm/buildout.hash.cfg

@@ -23,7 +23,7 @@ md5sum = 26a947c75792072a7b526cb18b617b10
 
 [template-kvm-cluster]
 filename = instance-kvm-cluster.cfg.jinja2.in
-md5sum = 63fa784d8946d0b6e3fbd6381e1ea9f4
+md5sum = 2bbee46d39aec87e92c8462efab292b6
 
 [template-kvm-resilient]
 filename = instance-kvm-resilient.cfg.jinja2

software/kvm/instance-kvm-cluster.cfg.jinja2.in

@@ -129,7 +129,12 @@ return =
   backend-url
 {% if str(use_nat).lower() == 'true' -%}
 {%   for port in nat_rules_list -%}
-{{ '  ' }}nat-rule-url-{{ port }}
+{%     if ':' in port -%}
+{%       set proto, port = port.split(':') -%}
+{%     else -%}
+{%       set proto, port = 'tcp', port -%}
+{%     endif -%}
+{{ '  ' }}nat-rule-url-{{proto}}-{{ port }}
 {%   endfor -%}
 {% endif -%}
 {{ '  ' }}monitor-base-url