add logstash alert field [stack_trace]

dev-upgrade/elastic/logstash-alert.yaml

@@ -79,6 +79,9 @@ data:
         }
       }
     }
+  logstash.yml: |-
+    http.host: "0.0.0.0"
+    xpack.monitoring.elasticsearch.hosts: [ "http://elastic:9200" ]
 
 ---
 apiVersion: apps/v1
@@ -117,6 +120,10 @@ spec:
               mountPath: /usr/share/logstash/pipeline/logstash.conf
               subPath: logstash.conf
               readOnly: true
+            - name: config
+              mountPath: /usr/share/logstash/config/logstash.yml
+              subPath: logstash.yml
+              readOnly: true
       volumes:
         - name: config
           configMap:
@@ -124,6 +131,8 @@ spec:
             items:
               - key: logstash.conf
                 path: logstash.conf
+              - key: logstash.yml
+                path: logstash.yml
 
 ---
 apiVersion: v1