Elasticsearch is a very important component of ELK Stack, so it's very important to have a good management of the Elasticsearch cluster, and to maintain security. There are a few plugins and utilities that are available.
Curator is an important utility that helps manage the Elasticsearch indices. As your data grows, it becomes important to manage the kind of information that you want to retain and what information you can remove from your system. Curator can help remove old indices and optimize the system.
The following are some of the high level tasks that Curator can perform for your Elasticsearch indices: