[Backport 2.x] [Remote Routing Table] Add integration tests for Remote Routing Table

[opensearch-trigger-bot]

Backport b9d5804 from #14631.

[github-actions]

❌ Gradle check result for 8a5ccfa: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

failing compile on JDK21

[dbwiddis]

Task :server:compileInternalClusterTestJava
RemoteRoutingTableBlobStore.REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING.getKey(),
^
/home/runner/work/OpenSearch/OpenSearch/server/src/internalClusterTest/java/org/opensearch/gateway/remote/RemoteClusterStateCleanupManagerIT.java:289: error: cannot find symbol
RemoteStorePathStrategy.PathInput.builder().basePath(baseMetadataPath.add(INDEX_ROUTING_TABLE)).indexUUID(indexUUID).build(),
^
symbol: variable INDEX_ROUTING_TABLE
location: class RemoteClusterStateCleanupManagerIT
/home/runner/work/OpenSearch/OpenSearch/server/src/internalClusterTest/java/org/opensearch/gateway/remote/RemoteRoutingTableServiceIT.java:60: error: package RemoteRoutingTableBlobStore does not exist
RemoteRoutingTableBlobStore.REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING.getKey(),
^
/home/runner/work/OpenSearch/OpenSearch/server/src/internalClusterTest/java/org/opensearch/gateway/remote/RemoteRoutingTableServiceIT.java:181: error: cannot find symbol
indexRoutingPath = getIndexRoutingPath(baseMetadataPath.add(INDEX_ROUTING_TABLE), indexRoutingTables.get(0).getIndex().getUUID());
^
symbol: variable INDEX_ROUTING_TABLE
location: class RemoteRoutingTableServiceIT

[github-actions]

❌ Gradle check result for 8a5ccfa: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for 8a5ccfa: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[dblock]

This is failing, will need a manual backport.

[dbwiddis]

Superceded by

• [Backport 2.x] Add integration tests for RemoteRoutingTable Service. (#14631) #14904