Andrei Dan 3087f164f7 Migrate legacy/v2/component templates away from custom attributes routing (#82472) ... This enhances the migrate to data tiers routing API to also iterate over the existing legacy, composable, and component templates and look if they define a custom node attribute routing in their settings for either `index.routing.allocation.require.{nodeAttrName}` or `index.routing.allocation.include.{nodeAttrName}`. If any does, we update them to remove all the routings settings for the provided `nodeAttrName`. eg. any template with the following setting configuration: ``` "settings": { index.routing.allocation.require.data: "warm", index.routing.allocation.include.data: "rack1", index.routing.allocation.exclude.data: "rack2,rack3" } ``` will have its settings updated to: ``` "settings": {} ```		2022-01-13 10:45:10 +00:00
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migrate-index-allocation-filters.asciidoc	Migrate legacy/v2/component templates away from custom attributes routing (#82472)	2022-01-13 10:45:10 +00:00