Declare port 10254 in nginx ingress pod template (#6609)

roles/kubernetes-apps/ingress_controller/ingress_nginx/defaults/main.yml

@@ -7,6 +7,7 @@ ingress_nginx_nodeselector:
 ingress_nginx_tolerations: []
 ingress_nginx_insecure_port: 80
 ingress_nginx_secure_port: 443
+ingress_nginx_metrics_port: 10254
 ingress_nginx_configmap: {}
 ingress_nginx_configmap_tcp_services: {}
 ingress_nginx_configmap_udp_services: {}

roles/kubernetes-apps/ingress_controller/ingress_nginx/templates/ds-ingress-nginx-controller.yml.j2

@@ -84,6 +84,11 @@ spec:
             - name: https
               containerPort: 443
               hostPort: {{ ingress_nginx_secure_port }}
+            - name: metrics
+              containerPort: 10254
+{% if not ingress_nginx_host_network %}
+              hostPort: {{ ingress_nginx_metrics_port }}
+{% endif %}
           livenessProbe:
             failureThreshold: 3
             httpGet: