curl -XGET http://localhost:9200/ cluster/health

curl -k -XGET https://localhost:9200/_cluster/health

curl -XGET http://localhost:9200/_cluster/health

{
  "cluster_name": "opensearch_homebrew",
  "status": "green",
  "timed_out": false,
  "number_of_nodes": 1,
  "number_of_data_nodes": 1,
  "discovered_master": true,
  "discovered_cluster_manager": true,
  "active_primary_shards": 0,
  "active_shards": 0,
  "relocating_shards": 0,
  "initializing_shards": 0,
  "unassigned_shards": 0,
  "delayed_unassigned_shards": 0,
  "number_of_pending_tasks": 0,
  "number_of_in_flight_fetch": 0,
  "task_max_waiting_in_queue_millis": 0,
  "active_shards_percent_as_number": 100
}

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