[7.8] Disallow merging existing mapping field definitions in templates (#57701) #57823
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…stic#57701) * Disallow merging existing mapping field definitions in templates This commit changes the merge strategy introduced in elastic#55607 and elastic#55982. Instead of overwriting these fields, we now prevent them from being merged with an exception when a user attempts to overwrite a field. As part of this, a more robust validation has been added. The existing validation checked whether templates (composable and component) were valid on their own, this new validation now checks that the composite template (mappings/settings/aliases) is valid. This means that when a composable template is added or updated, we confirm that it is valid with its component pieces. When a component template is updated we ensure that all composable templates that make use of the component template continue to be valid before allowing the component template to be updated. This change also necessitated changes in the tests, however, I have left tests that exercise mapping merging with nested object fields as `@AwaitsFix`, as we intend to change the behavior soon to allow merging in a recursive-with-replacement fashion (see: elastic#57393). I have added tests that check the new disallowing behavior in the meantime. * Use functional instead of imperative prefix collection * Use IndexService.withTempIndexService * Rename tests * Fix tests Co-authored-by: Elastic Machine <[email protected]>
dakrone
added
backport
:Data Management/Indices APIs
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Pinging @elastic/es-core-features (:Core/Features/Indices APIs) |
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Backports the following commits to 7.8: