Hi Community,
I've tried to setup a rollover into a new index:
curl -XPUT http://HOST/rollover- -d'
 {
     "mappings": {
       "syslog": {
         "_all": {
           "enabled": true,
           "omit_norms": true
         },
         "dynamic_templates": [
          {
            "message_field": {
              "mapping": {
                "fielddata": {
                  "format": "disabled"
                },
                "index": "analyzed",
                "omit_norms": true,
                "type": "string"
              },
              "match": "message",
              "match_mapping_type": "string"
            }
          },
          {
            "string_fields": {
              "mapping": {
                "fielddata": {
                  "format": "disabled"
                },
                "index": "analyzed",
                "omit_norms": true,
                "type": "string",
                "fields": {
                  "raw": {
                    "ignore_above": 256,
                    "index": "not_analyzed",
                    "type": "string"
                  }
                }
              },
              "match": "*",
              "match_mapping_type": "string"
            }
          }
        ],
  
 
        "properties": {
           "@timestamp": {
             "type": "date",
             "format": "strict_date_optional_time||epoch_millis"
           },
           "@version": {
             "type": "string",
             "index": "not_analyzed"
           },
           "conditions": {
            "properties": {
              "[max_age: 1h]": {
                "type": "boolean"
              }
            }
           },
           "bytes": {
             "type": "long"
           },
           "client_address": {
             "type": "ip"
           },
           "duration": {
             "type": "long"
           },
           "geoip": {
            "properties": {
              "coordinates": {
                "type": "float"
              },
              "ip": {
                "type": "ip"
              },
              "latitude": {
                "type": "float"
              },
              "location": {
                "type": "geo_point"
              },
              "longitude": {
                "type": "float"
              }
            }
          },
          "new_index": {
            "type": "string",
            "norms": {
              "enabled": false
            },
            "fielddata": {
              "format": "disabled"
            },
            "fields": {
              "raw": {
                "type": "string",
                "index": "not_analyzed",
                "ignore_above": 256
              }
            }
          },
          "old_index": {
            "type": "string",
            "norms": {
              "enabled": false
            },
            "fielddata": {
              "format": "disabled"
            },
            "fields": {
              "raw": {
                "type": "string",
                "index": "not_analyzed",
                "ignore_above": 256
              }
            }
          },
          "rolled_over": {
            "type": "boolean"
          }
 }
 }
 }
 }'
This Index do not a rollover...