indexPrefix

Put before every index, index template and index pattern Wow names on the cluster ({indexPrefix}wow.{context}.{aggregate}.snapshot, {indexPrefix}wow-snapshot-template, …), so that several deployments share one cluster. Unset or blank, the names are Wow's own. It must be a valid start of an index name (lowercase, none of \ / * ? " < > | , # : or whitespace, not starting with -, _, +, . or wow.); an invalid one fails startup.