設置elasticsearch的默認分區數和副本數

日志是從logstash傳輸給ES的，但是logstash配置中只能配置host和index，所以只能在es中進行配置

但是在es配置文件中配置，也就是新增如下參數的話會報錯：node settings must not contain any index level settings

index.number_of_shards: 1
index.number_of_replicas: 0

所以采用索引模板的方式進行設置

POST /_templates/index_patterns
{
  "order": 0,
  "index_patterns": [
    "filebeat_*"
  ],
  "settings": {
    "index": {
      "number_of_shards": "1",
      "number_of_replicas": "0"
    }
  },
  "mappings": {},
  "aliases": {}
}

凡是索引名是filebeat_*的，分片數是1 ，副本數是0