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Make prometheus host and port config options explicit #4147

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3 changes: 3 additions & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,9 @@ release.

### Metrics

- Clarify prometheus exporter should have `host` and `port` configuration options.
([#4147](https://github.com/open-telemetry/opentelemetry-specification/pull/4147))

### Logs

### Events
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8 changes: 8 additions & 0 deletions specification/metrics/sdk_exporters/prometheus.md
Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,14 @@ Prometheus exporter.

## Configuration

A Prometheus Exporter SHOULD support a configuration option to set the host
that metrics are served on. The option MAY be named `host`, and MUST be `localhost`
by default.

A Prometheus Exporter SHOULD support a configuration option to set the port
that metrics are served on. The option MAY be named `port`, and MUST be `9464` by
default.

A Prometheus Exporter MAY offer configuration to add resource attributes as metric attributes.
By default, it MUST NOT add any resource attributes as metric attributes.
The configuration SHOULD allow the user to select which resource attributes to copy (e.g.
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