static async getESHealth (req, res) {
    try {
      const health = await Db.healthCache(req.query.cluster);
      return res.send(health);
    } catch (err) {
      return res.serverError(500, err.toString());
    }
  }
GET - /api/eshealth

Retrieve OpenSearch/Elasticsearch health and stats
There is no auth necessary to retrieve eshealth
@name /eshealth
@returns {ESHealth} health - The elasticsearch cluster health status and info