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action #66019

Updated by okurz about 1 year ago

## Motivation
When working on #64574 I've noticed that we don't have a retention policy and the default policy seems to be storing the data forever. That's likely something we want to adjust in the long term.

## Acceptance criteria
* **AC1:** Downsampling and retention is enabled with at least *some* sensible settings on the influxdb on monitor.qa.suse.de

## Suggestion
### notes

* Read https://docs.influxdata.com/influxdb/v2.0/process-data/common-tasks/downsample-data/ about downsampling
* Read https://docs.influxdata.com/influxdb/v2.0/reference/api/influxdb-1x/dbrp/ about retention
* Look into
That's what mkittler has I have drafted so far (not tested): https://gitlab.suse.de/mkittler/salt-states-openqa/-/commit/1880714e73d467ac5ed9c0a5b5cec4467fc14a20
* Introduce the corresponding changes to limit the storage space used by influxdb, mainly to prevent the storage to run full

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