fix outputs of parent stack to return user DNS name

cloudy_mozdef/cloudformation/mozdef-instance.yml

@@ -501,4 +501,9 @@ Resources:
         Ref: MozDefElasticLoadBalancingV2LoadBalancer
       Port: 9443
       Protocol: HTTPS
-      SslPolicy: ELBSecurityPolicy-2016-08
+      SslPolicy: ELBSecurityPolicy-2016-08
+Outputs:
+  LoadBalancerDNSName:
+    Description: The DNS name of the ALB hosting MozDef.  If using OIDC or SSL point your DNS at this.
+    Value:
+      Fn::GetAtt: [ MozDefElasticLoadBalancingV2LoadBalancer, DNSName ]

cloudy_mozdef/cloudformation/mozdef-parent.yml

@@ -307,3 +307,7 @@ Resources:
       RoleName: AWSServiceRoleForAmazonElasticsearchService
       PathPrefix: '/aws-service-role/es.amazonaws.com/'
       ServiceToken: !GetAtt DoesRoleExistLambdaFunction.Arn
+Outputs:
+  LoadBalancerDNSName:
+    Description: The DNS name of the ALB hosting MozDef.  If using OIDC or SSL point your DNS at this.  If using basic auth no DNS is necessary.
+    Value: !GetAtt MozDefInstance.Outputs.LoadBalancerDNSName