curl -X GET "localhost:9200/_cat/templates?v&s=name"
logstash                      [logstash-*]               0          60001
logstash-index-template       [.logstash]                0

curl -X GET "localhost:9200/_template/logstash-index-template"

curl -X PUT "localhost:9200/_template/logstash-index-template" -H 'Content-Type: application/json' -d '{"logstash-index-template":{"order":0,"index_patterns":[".logstash"],"settings":{"index":{"number_of_shards":"1","number_of_replicas":"0","codec":"best_compression"}},"mappings":{"doc":{"_meta":{"logstash-version":"6.3.1"},"dynamic":"strict","properties":{"description":{"type":"text"},"last_modified":{"type":"date"},"pipeline_metadata":{"properties":{"version":{"type":"short"},"type":{"type":"keyword"}}},"pipeline":{"type":"text"},"pipeline_settings":{"dynamic":false,"type":"object"},"username":{"type":"keyword"},"metadata":{"type":"object","dynamic":false}}}},"aliases":{}}}'

curl -X PUT "localhost:9200/_settings" -H 'Content-Type: application/json' -d'{    "index" : {        "number_of_replicas" :0    }}'