Bundle by default miminal composable templates for the new indexing strategy #56709
Description
As part of the new indexing strategy proposed in this doc we would like to add by default a few v2 templates that will be installed by default.
That will match the following index patterns:
logs-*-*
metrics-*-*
events-*-*
This is to ensure that the Elastic Agent just works out of the box before Kibana is started.
The downside of this indices matching the above patterns will potentially have a conflict. One of the ideas was that we provide a config flag in Elasticsearch to disable this setup in 7.x so users can opt out.
With the flag we didn't need this setting as the v1 template was still honored even if a v2 template was around and only had priority if the flag was set which was the case for data sent from the agent. Now that we don't have the flag anymore I assume we need such a setting or other ideas how to help users that will face this conflict in 7.x.