remote storage to Elasticsearch
1.准备prometheusbeat
下载安装包文件：https://github.com/infonova/prometheusbeat/releases
2.配置prometheusbeat
设置监听端口
prometheusbeat:
# Listen port of the server. Defaults to :8080
listen: ":8090"
# Context path. Defaults to /prometheus
context: "/prometheus
