We are trying to install a self managed version of Camunda and set up an OpenSearch resource on AWS. We created a serverless OpenSearch and are running into issues with healthcheck and creating indexes. Has anyone figured out how to use a serverless option? what if we just use it for optimize (and use RDBMS as secondaryStorage)?
OpenSearch Serverless (AOSS) is not explicitly documented as supported with Camunda 8 self-managed, and Optimize requires Elasticsearch/OpenSearch (cannot use RDBMS as storage). I found the following relevant resources:
- Use Amazon OpenSearch Service for Orchestration Cluster with Helm
- Use external OpenSearch for Optimize with Helm
- Supported environments - Component requirements
- RDBMS example deployment for Camunda with Helm
Does this help? If not, can anyone from the community jump in? 
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Hi @ixu_thr Camunda supports secondary storage from specific versions. Can you specify which camunda version are you referring?