[chore][exporter/elasticsearch] Rename OTel mode dynamic template summary_metrics to summary

[carsonip]

Description:

Renaming OTel mode dynamic template summary_metrics to summary to align with Elasticsearch otel-data change elastic/elasticsearch#113409

Link to tracking Issue:

Testing:

Documentation:

No changelog as this should not concern end users. This is a coordinated change between in-development Elasticsearch otel-data plugin and in-development elasticsearchexporter OTel mapping mode.

[andrzej-stencel]

No changelog as this should not concern end users. This is a coordinated change between in-development Elasticsearch otel-data plugin and in-development elasticsearchexporter OTel mapping mode.

Does this mean users should be using a specific version of the Elasticsearch exporter with a specific version of Elasticsearch? What if a user runs the collector v0.109.0 (without this change) with a future version of Elasticsearch, e.g. v8.16? What if a user runs the collector e.g. v0.111.0 (with this change) with a previous version of Elasticsearch like v8.15.x?

[carsonip]

Does this mean users should be using a specific version of the Elasticsearch exporter with a specific version of Elasticsearch? What if a user runs the collector v0.109.0 (without this change) with a future version of Elasticsearch, e.g. v8.16? What if a user runs the collector e.g. v0.111.0 (with this change) with a previous version of Elasticsearch like v8.15.x?

ES otel-data plugin is not released yet. It is under active development targeting 8.16. We should only care about the compatibility once the ES plugin released in 8.16. Also note that this change only affects OTel mapping mode.

i.e.

• v0.109.0 (without this change) will not work with 8.16
• v0.111.0 (with this change) with a previous version of Elasticsearch like v8.15.x won't work because es exporter otel mode only works with ES 8.16+

[andrzej-stencel]

Thanks @carsonip for the explanation, makes sense to me.