Update prometheus_metrics_prefix documentation #8236
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coignetp
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Dec 22, 2020
yzhan289
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Dec 22, 2020
| @@ -25,7 +25,7 @@ | |||
| items: | |||
| type: string | |||
| - name: prometheus_metrics_prefix | |||
| description: <PREFIX> for exposed Prometheus metrics. | |||
| description: Removes a given <PREFIX> from exposed Prometheus metrics. | |||
| value: | |||
| type: string | |||
| example: <PREFIX>_ | |||
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What is the purpose of _ after <PREFIX>?
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I guess because services adding a prefix usually add an extra _ between the prefix and the rest of the metric name for readability?
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Gotcha, so it would remove the extra _ that is also included.
yzhan289
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FlorianVeaux
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prometheus_metrics_prefixis used when the prometheus all have the same prefix and removes that prefix before submitting the metrics. See https://github.com/DataDog/integrations-core/blob/master/datadog_checks_base/datadog_checks/base/checks/openmetrics/mixins.py#L122This PR makes this behavior a bit more clear.