# OpenTelemetry Collector Configuration

ThousandEyes for OpenTelemetry uses the [OpenTelemetry Collector](https://opentelemetry.io/docs/collector) to export the ThousandEyes telemetry data.

This section describes the configuration used to export data. The configuration depends on the stream's `type` and `endpointType`.

* For streams with `type` set to `opentelemetry` and `endpointType` set to `grpc`, ThousandEyes uses an [OTLP gRPC Exporter](https://github.com/open-telemetry/opentelemetry-collector/blob/main/exporter/otlpexporter/README.md) with the following configuration:

```yaml
exporters:
  otlp:
    endpoint: <stream.streamEndpointUrl>
    headers: <stream.customHeaders>
    tls:
       insecure: false
    retry_on_failure:
       enabled: true
       initial_interval: 5s
       multiplier: 1.5
       max_interval: 30s
       max_elapsed_time: 30s
```

* For streams with `type` set to `opentelemetry` and `endpointType` set to `http`, ThousandEyes uses an [OTLP HTTP Exporter](https://github.com/open-telemetry/opentelemetry-collector/blob/main/exporter/otlphttpexporter/README.md) with the following configuration:

```yaml
exporters:
  otlphttp:
    metrics_endpoint: <stream.streamEndpointUrl>
    headers: <stream.customHeaders>
    tls:
       insecure: false
    retry_on_failure:
       enabled: true
       initial_interval: 5s
       multiplier: 1.5
       max_interval: 30s
       max_elapsed_time: 30s
```

* For streams with `type` set to `splunk-hec`, ThousandEyes uses a [Splunk HTTP Event Collector (HEC) Exporter](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/exporter/splunkhecexporter/README.md) with the following configuration:

```yaml
exporters:
  splunk_hec:
    endpoint: <stream.streamEndpointUrl>
    token: <stream.exporterConfig.splunkHec.token>
    splunk_app_name: "ThousandEyes OpenTelemetry"
    source: <stream.exporterConfig.splunkHec.source>
    sourcetype: <stream.exporterConfig.splunkHec.sourceType>
    index: <stream.exporterConfig.splunkHec.index>
    tls:
      insecure: false
    retry_on_failure:
      enabled: true
      initial_interval: 5s
      multiplier: 1.5
      max_interval: 30s
      max_elapsed_time: 30s
```

### Placeholders

* `<stream.streamEndpointUrl>` is replaced with the actual endpoint URL configured in the `stream`.
* `<stream.customHeaders>` is replaced with the actual custom headers configured in the `stream`.
* `<stream.exporterConfig.splunkHec>` is replaced with the actual splunkHec exporter config configured in the `stream`.


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