Fixing assigning ssl certificate to http listener in app gateway (#45830)

* fixed ssl certificate reference

* modified test

lib/ansible/modules/cloud/azure/azure_rm_appgateway.py

@@ -577,6 +577,12 @@ class AzureRMApplicationGateways(AzureRMModuleBase):
                                                   kwargs['name'],
                                                   item['frontend_port'])
                             item['frontend_port'] = {'id': id}
+                        if 'ssl_certificate' in item:
+                            id = ssl_certificate_id(self.subscription_id,
+                                                    kwargs['resource_group'],
+                                                    kwargs['name'],
+                                                    item['ssl_certificate'])
+                            item['ssl_certificate'] = {'id': id}
                         if 'protocol' in item:
                             item['protocol'] = _snake_to_camel(item['protocol'], True)
                         ev[i] = item
@@ -781,6 +787,16 @@ def frontend_port_id(subscription_id, resource_group_name, appgateway_name, name
     )
 
 
+def ssl_certificate_id(subscription_id, resource_group_name, ssl_certificate_name, name):
+    """Generate the id for a frontend port"""
+    return '/subscriptions/{0}/resourceGroups/{1}/providers/Microsoft.Network/applicationGateways/{2}/sslCertificates/{3}'.format(
+        subscription_id,
+        resource_group_name,
+        ssl_certificate_name,
+        name
+    )
+
+
 def backend_address_pool_id(subscription_id, resource_group_name, appgateway_name, name):
     """Generate the id for an address pool"""
     return '/subscriptions/{0}/resourceGroups/{1}/providers/Microsoft.Network/applicationGateways/{2}/backendAddressPools/{3}'.format(

test/integration/targets/azure_rm_appgateway/tasks/main.yml

@@ -66,6 +66,8 @@
     http_listeners:
       - frontend_ip_configuration: sample_gateway_frontend_ip_config
         frontend_port: ag_frontend_port
+        protocol: https
+        ssl_certificate: cert2
         name: sample_http_listener
     request_routing_rules:
       - rule_type: basic
@@ -129,6 +131,8 @@
     http_listeners:
       - frontend_ip_configuration: sample_gateway_frontend_ip_config
         frontend_port: ag_frontend_port
+        protocol: https
+        ssl_certificate: cert2
         name: sample_http_listener
     request_routing_rules:
       - rule_type: Basic
@@ -187,6 +191,8 @@
     http_listeners:
       - frontend_ip_configuration: sample_gateway_frontend_ip_config
         frontend_port: ag_frontend_port
+        protocol: https
+        ssl_certificate: cert2
         name: sample_http_listener
     request_routing_rules:
       - rule_type: Basic
@@ -245,6 +251,8 @@
     http_listeners:
       - frontend_ip_configuration: sample_gateway_frontend_ip_config
         frontend_port: ag_frontend_port
+        protocol: https
+        ssl_certificate: cert2
         name: sample_http_listener
     request_routing_rules:
       - rule_type: Basic