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[prom collector ] Documenting scrape interval (#215)

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There is a way to configure scrape interval

Signed-off-by: Muaaz Saleem <muhammad.muaaz.saleem@zalando.de>
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Muaaz Saleem 2020-10-26 17:37:24 +01:00 committed by GitHub
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@ -202,6 +202,16 @@ the trade-offs between the two approaches.
| `prometheus-query` | Generic metric which requires a user defined query. | External | | `>=1.12` |
| *custom* | No predefined metrics. Metrics are generated from user defined queries. | Object | *any* | `>=1.12` |
### Configure Scrape Interval
There is a way to set the interval via an annotation like:
```yaml
metric-config.external.prometheus-query.prometheus/interval: 30s
```
Default is 1 minute.
### Example: External Metric
This is an example of an HPA configured to get metrics based on a Prometheus