Proposal: Cronsyntax interval

[lublak]

A note for the community

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Use Cases

Currently we can define "only" exec_interval_secs.
In https://vector.dev/docs/reference/configuration/sources/exec/
And https://vector.dev/docs/reference/configuration/sources/http_client/#scrape_interval_secs
And here: https://vector.dev/docs/reference/configuration/sources/apache_metrics/#scrape_interval_secs
etc.
It would be a really nice thing to write something like that:

at every 30 minutes
sec   min   hour   day of month   month   day of week   year
*      */30  *          *                         *             *                       *

Attempted Solutions

For example the http client and the exec client:
I mostly know the time when i can pull the data from this sources.
There is currently no possibility of setting fixed time values.

Proposal

• Add scrape_interval_cron and exec_interval_cron
• Add a mode option: "cron"

References

No response

Version

0.45.0