[TASK] Unified Config support - Secondary Storage - templatePriority, replicasByIndexName, shardsByIndexName

[igpetrov]

Related to

Epic: https://github.com/camunda/product-hub/issues/2486
Related to: camunda/camunda#38121
Properties tracking (project internal): https://docs.google.com/spreadsheets/d/1R4epsy6DWemA8_76cUE6zOGUFbrXCXlM2reXnKFuz7Y/edit?gid=818158292#gid=818158292

Overview

Hello team, requesting support of a new properties:

• camunda.data.secondary-storage.opensearch.template-priority

to replace legacy properties

• camunda.database.index.templatePriority
• zeebe.broker.exporters.camundaexporter.args.index.templatePriority

---

• camunda.data.secondary-storage.opensearch.number-of-replicas-per-index.<string>=<int>

to replace legacy properties

• camunda.database.index.replicasByIndexName.<string>=<int>
• zeebe.broker.exporters.camundaexporter.args.index.replicasByIndexName.<string>=<int>

---

• camunda.data.secondary-storage.opensearch.number-of-shards-per-index

to replace legacy properties

• camunda.database.index.shardsByIndexName.<string>=<int>
• zeebe.broker.exporters.camundaexporter.args.index.shardsByIndexName.<string>=<int>

Required for 8.9.

[bkenez]

Similarly to #4183

These legacy properties are also not exposed through the helm chart or referenced in templates.

[bkenez]

As no new values need to be introduced, the Helm chart is not affected by the above changes, closing the issue.

Reference: #4183 (comment)