This PR adds four new templates that are automatically installed from the Monitoring plugin.
In 8.x, Metricbeat will be writing its data in ECS compliant format, even when used with xpack
mode enabled (stack monitoring). In order to continue to support the legacy data format, new
mappings have been created with the new ECS fields for indexing data, and alias fields for the
legacy format which point to the corresponding ECS fields.
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>
Co-authored-by: Mat Schaffer <mat@schaffer.me>
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