Filebeat template for Elasticsearch version 6

filebeat-index-template.json

{
  "mappings": {
    "_default_": {
      "dynamic_templates": [
        {
          "template1": {
            "mapping": {
              "ignore_above": 1024,
              "index": "true",
              "type": "{dynamic_type}"
            },
            "match": "*"
          }
        }
      ],
      "properties": {
        "@timestamp": {
          "type": "date"
        },
        "message": {
          "type": "text",
          "index": "true"
        },
        "offset": {
          "type": "long",
          "doc_values": "true"
        },
        "geoip": {
          "type": "object",
          "dynamic": true,
          "properties": {
            "location": {
              "type": "geo_point"
            }
          }
        }
      }
    }
  },
  "settings": {
    "index.refresh_interval": "5s"
  },
  "template": "filebeat-*"
}