The source project of this merge request has been removed.
CE backport of "Configure the number of ES shards and replicas"
What does this MR do?
Backports schema changes in https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/12713/diffs to CE.
We're moving towards a unified schema for CE and EE: https://gitlab.com/gitlab-org/gitlab-ee/issues/9686 - so I assume this is necessary / desirable now.
Related to https://gitlab.com/gitlab-org/gitlab-ee/issues/2087