Allow setting annotations on ingress-nginx service (#11544)

inventory/sample/group_vars/k8s_cluster/addons.yml

@@ -104,6 +104,8 @@ gateway_api_enabled: false
 ingress_nginx_enabled: false
 # ingress_nginx_host_network: false
 # ingress_nginx_service_type: LoadBalancer
+# ingress_nginx_service_annotations:
+#   example.io/loadbalancerIPs: 1.2.3.4
 # ingress_nginx_service_nodeport_http: 30080
 # ingress_nginx_service_nodeport_https: 30081
 ingress_publish_status_address: ""

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

@@ -4,6 +4,7 @@ ingress_nginx_host_network: false
 ingress_nginx_service_type: LoadBalancer
 ingress_nginx_service_nodeport_http: ""
 ingress_nginx_service_nodeport_https: ""
+ingress_nginx_service_annotations: {}
 ingress_publish_status_address: ""
 ingress_nginx_nodeselector:
   kubernetes.io/os: "linux"

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

@@ -7,6 +7,10 @@ metadata:
   labels:
     app.kubernetes.io/name: ingress-nginx
     app.kubernetes.io/part-of: ingress-nginx
+{% if ingress_nginx_service_annotations %}
+  annotations:
+    {{ ingress_nginx_service_annotations | to_nice_yaml(indent=2, width=1337) | indent(width=4) }}
+{% endif %}
 spec:
   type: {{ ingress_nginx_service_type }}
   ports: