enable configuration of indexPrefix

Signed-off-by: Kiss Miklos <miklos@roadie.io>

plugins/search-backend-module-elasticsearch/config.d.ts

@@ -21,6 +21,10 @@ export interface Config {
      * Options for ElasticSearch
      */
     elasticsearch?: {
+      /**
+       * Prefix to be used for all index creation. Value will be put in front of the index as is.
+       */
+      indexPrefix?: string;
       /**
        * Batch size for elastic search indexing tasks. Defaults to 1000.
        */

plugins/search-backend-module-elasticsearch/src/engines/ElasticSearchSearchEngineIndexer.ts

@@ -140,7 +140,7 @@ export class ElasticSearchSearchEngineIndexer extends BatchSearchEngineIndexer {
     // does not occur, and clean up the empty index we just created.
     if (this.processed === 0) {
       this.logger.warn(
-        `Index for ${this.type} was not ${
+        `Index for ${this.indexName} was not ${
           this.removableIndices.length ? 'replaced' : 'created'
         }: indexer received 0 documents`,
       );
@@ -158,7 +158,7 @@ export class ElasticSearchSearchEngineIndexer extends BatchSearchEngineIndexer {
     // stale indices can be referenced for deletion in case initial attempt
     // fails. Allow errors to bubble up so that we can clean up the created index.
     this.logger.info(
-      `Indexing completed for index ${this.type} in ${duration(
+      `Indexing completed for index ${this.indexName} in ${duration(
         this.startTimestamp,
       )}`,
       result,

plugins/search-backend-module-elasticsearch/src/module.ts

@@ -76,12 +76,20 @@ export default createBackendModule({
           );
           return;
         }
-
+        const indexPrefix = config.getOptionalString(
+          'search.elasticsearch.indexPrefix',
+        );
+        if (indexPrefix) {
+          logger.info(
+            `Preceeding all indices with index prefix: ${indexPrefix}`,
+          );
+        }
         searchEngineRegistry.setSearchEngine(
           await ElasticSearchSearchEngine.fromConfig({
             logger,
             config,
             translator,
+            indexPrefix,
           }),
         );
       },