Use timestamp (current_time for example) dinamically as part of the output filename - File Sink Output

[canob]

Hi everyone,
I want to generate dinamically the name of the file in a File Sink Output, based for example on the generation_time of the file, for example dns_metrics_2023-10-24-154100.json.
Is that possible?
For example, what I need to use in actions -> file -> path here?

root@ekuiper:/kuiper/bin# ./kuiper describe rule dns_metrics_query_by_ip_5m
Connecting to 127.0.0.1:20498...
{
  "triggered": true,
  "id": "dns_metrics_query_by_ip_5m",
  "name": "dns_metrics_query_by_ip_5m",
  "sql": "SELECT source_ip AS source_ip, COUNT(source_ip) AS count_source_ip FROM dns where tag = \"dns_query\" GROUP BY source_ip, TUMBLINGWINDOW(mi, 5);",
  "actions": [
    {
      "file": {
        "bufferLength": 1024,
        "enableCache": false,
        "fileType": "lines",
        "format": "json",
        "hasHeader": false,
        "omitIfEmpty": false,
        "path": "/kuiper/output/dns-metrics-query-by-ip-5m.json",
        "resourceId": "dns",
        "rollingCount": 10000,
        "runAsync": false,
        "sendSingle": true
      }
    }

Thanks in advance for your help.

[ngjaying]

Setup rolling strategy, and set rollingNamePattern=suffix which will add timestamp as a suffix. Check https://ekuiper.org/docs/en/latest/guide/sinks/builtin/file.html#rolling-strategy

[canob]

Thanks @ngjaying !