blocking_issues (ElasticsearchClusterBlockingIssues)
Information about issues that prevent either whole cluster or a particular index from operating correctly
healthy (boolean, required)
Whether the Elasticsearch cluster is healthy (check the sub-objects for more details if not)
master_info (ElasticsearchMasterInfo, required)
Information about the master node(s) in the Elasticsearch cluster
shard_info (ElasticsearchShardsInfo, required)
Information about the shards (and replicas) that comprise the Elasticsearch indices