add support for defining loadbalancer class (#1746)

roles/installer/defaults/main.yml

@@ -52,6 +52,7 @@ ingress_hosts: ''
 
 loadbalancer_protocol: 'http'
 loadbalancer_port: '80'
+loadbalancer_class: ''
 service_annotations: ''
 
 # Port to be used for NodePort configuration, default is to auto-assign a port between 30000-32768

roles/installer/templates/networking/service.yaml.j2

@@ -55,6 +55,9 @@ spec:
 {% if loadbalancer_ip is defined and loadbalancer_ip | length %}
   loadbalancerip: '{{ loadbalancer_ip }}'
 {% endif %}
+{% if loadbalancer_class is defined and loadbalancer_class | length %}
+  loadBalancerClass: {{ loadbalancer_class }}
+{% endif %}
 {% else %}
   type: ClusterIP
 {% endif %}