Default Elastic version: 8.0.0

Note See version selection to run a different version.

Notable changes

• The main branch now follows the 8.x release series of Elastic components.

  Moving forward, all changes on the main branch should be considered incompatible with the 7.x release series, which is now being tracked on the release-7.x branch.

List of changes impacting docker-elk:

Logstash

• The output to Elasticsearch is handled as a data stream.

  Starting with v8.0.0, the elasticsearch output for Logstash sends log data to a data stream instead of logstash-* indices by default. The name of the default data stream is logs-generic-default. docker-elk remains unopinionated and simply uses Elastic's defaults like it always has, so users who prefer to retain the old behaviour need to explicitly opt-out of data streams in their Logstash pipelines.

  Refs:

  • https://www.elastic.co/guide/en/elasticsearch/reference/current/data-streams.html
  • https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html#plugins-outputs-elasticsearch-data-streams

• The (legacy) monitoring data collection is now disabled.

  This feature was deprecated since v7.9.0, and removed in v8.0.0.

  Ref: https://www.elastic.co/guide/en/logstash/current/monitoring-internal-collection-legacy.html

Elasticsearch

• The command line tool elasticsearch-setup-passwords was deprecated in favour of a new elasticsearch-reset-password tool.

  Passwords for built-in users must now be generated one by one.

  Ref: https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-passwords.html

Kibana

• An index pattern for logs-* indices is automatically created.

  It used to be required to manually create an index pattern for indices managed by Logstash, even when using the default Logstash indices. This is no longer the case since the output data is now being handled as a data stream, and Kibana automatically creates index patterns for these.

Enterprise Search

• Kibana is now the new management interface, and the only one available moving forward.

  The old standalone Enterprise Search interface was removed in v8.0.0.

  Ref: https://www.elastic.co/guide/en/enterprise-search/current/user-interfaces.html