Error Running Curator Rollover method

[hartfordfive (Al)]

I'm currently collecting metricbeat data from many systems that gets stored in an index with the format of 'metricbeat-YYYY.mm.dd'. When I attempt to test my curator action to run a rollover, I get the following error:

curator.exceptions.ConfigurationError: Configuration: options: Location: Action ID "3", action "rollover": Bad Value: "(could not determine)", expected str for dictionary value @ data['new_index']. Check configuration file.

Below are some other relevant details of my current configurations

Version of elasticsearch-curator: 5.4
Version of Elasticsearch: 6.1

Elasticsearch output config that writes the metricbeat data:

elasticsearch {
  id => "es_out_metricbeat"
  document_id => "%{[@metadata][fingerprint]}"
  hosts => ["http://localhost:9200"]
  index => "metricbeat-%{+YYYY.MM.dd}"
  manage_template => false
  upsert => true
}

The first part of my metricbeat index template (mappings omitted due to size):

{
  "order": 1,
  "index_patterns": [
    "metricbeat-*",
    "*-*-metricbeat-*",
    "metricbeat*"
  ],
  "settings": {
    "index": {
      "codec": "best_compression",
      "mapping": {
        "total_fields": {
          "limit": "10000"
        }
      },
      "refresh_interval": "10s",
      "number_of_routing_shards": "30",
      "number_of_shards": "1"
    }
  },
  "aliases": {
    "metricbeat": {}
  }
}

My actions file contains:

actions:
  1:
    action: rollover
    description: >-
      Rollover the metricbeat indices, which should be in the
      form of prefix-000001 (or similar), or prefix-YYYY.MM.DD-1.
    options:
      disable_action: False
      name: metricbeat
      conditions:
        max_age: 10s
      extra_settings:
        index.number_of_shards: 1
        index.number_of_replicas: 1
        aliases:
          metricbeat: {}
      continue_if_exception: False

Would anyone know what my issue might be? I appreciate any help!

[theuntergeek (Aaron Mildenstein)]

For rollover, it automatically preserves the alias, so this part is redundant, and may result in a bad API call. If you were adding to another alias, then you'd add it here.

@hartfordfive

aliases:
  metricbeat: {}

Beyond that, the action file provided doesn't match the error message. The error message says that Action ID "3" has a misconfiguration. But the pasted action file segment shows:

@hartfordfive

actions:
  1:
    action: rollover
    description: >-

Why the discrepancy? It appears there's a misconfiguration, but the pasted configuration seems different in at least that regard.