This is a small bug report for the kubernete couchbase operator documentation.
indexStorageType should be
indexStorageSetting according to the sample configuration at http://docs.couchbase.com/prerelease/couchbase-operator/beta/couchbaseClusterConfig.html.
Also it cannot be set to
default because trying to create this object would return a validation failure:
spec.cluster.indexStorageSetting in body should be one of [plasma memory_optimized]
Maybe a coworker can forward this report to the right person.