added support for ELK Stack 7.x

added support for ELK Stack 7.x

elk-hole - vis - DNS forward destinations - pihole ELK v7.x.json

+[
+  {
+    "_id": "27624920-3390-11e8-beb4-d7353bd14360",
+    "_type": "visualization",
+    "_source": {
+      "title": "DNS forward destinations - pihole",
+      "visState": "{\"title\":\"DNS forward destinations - pihole\",\"type\":\"pie\",\"params\":{\"type\":\"pie\",\"addTooltip\":true,\"addLegend\":true,\"legendPosition\":\"right\",\"isDonut\":true,\"labels\":{\"show\":true,\"values\":true,\"last_level\":true,\"truncate\":100}},\"aggs\":[{\"id\":\"1\",\"enabled\":true,\"type\":\"count\",\"schema\":\"metric\",\"params\":{}},{\"id\":\"2\",\"enabled\":true,\"type\":\"terms\",\"schema\":\"segment\",\"params\":{\"field\":\"beat.hostname.keyword\",\"size\":5,\"order\":\"desc\",\"orderBy\":\"1\",\"otherBucket\":false,\"otherBucketLabel\":\"Other\",\"missingBucket\":false,\"missingBucketLabel\":\"Missing\"}},{\"id\":\"3\",\"enabled\":true,\"type\":\"terms\",\"schema\":\"segment\",\"params\":{\"field\":\"dns_forward_to.keyword\",\"size\":5,\"order\":\"desc\",\"orderBy\":\"1\",\"otherBucket\":false,\"otherBucketLabel\":\"Other\",\"missingBucket\":false,\"missingBucketLabel\":\"Missing\"}}]}",
+      "uiStateJSON": "{}",
+      "description": "",
+      "version": 1,
+      "kibanaSavedObjectMeta": {
+        "searchSourceJSON": "{\"filter\":[],\"query\":{\"query\":\"\",\"language\":\"lucene\"},\"indexRefName\":\"kibanaSavedObjectMeta.searchSourceJSON.index\"}"
+      }
+    },
+    "_migrationVersion": {
+      "visualization": "7.0.1"
+    },
+    "_references": [
+      {
+        "name": "kibanaSavedObjectMeta.searchSourceJSON.index",
+        "type": "index-pattern",
+        "id": "55140490-2411-11e9-8e51-330d470c740b"
+      }
+    ]
+  }
+]
\ No newline at end of file

etc/filebeat/filebeat.yml

@@ -18,7 +18,7 @@ output:
    hosts: ["127.0.0.1:5141"]
    
 shipper:
-   
+  name: elk-hole
 logging:
  files:
    rotateeverybytes: 10485760