traefik/docs/content/observability/tracing/datadog.md

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# DataDog
To enable the DataDog:
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```toml tab="File (TOML)"
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[tracing]
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[tracing.dataDog]
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```
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```yaml tab="File (YAML)"
tracing:
dataDog: {}
```
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```bash tab="CLI"
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--tracing.datadog=true
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```
#### `localAgentHostPort`
_Required, Default="127.0.0.1:8126"_
Local Agent Host Port instructs reporter to send spans to datadog-tracing-agent at this address.
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```toml tab="File (TOML)"
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[tracing]
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[tracing.dataDog]
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localAgentHostPort = "127.0.0.1:8126"
```
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```yaml tab="File (YAML)"
tracing:
dataDog:
localAgentHostPort: 127.0.0.1:8126
```
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```bash tab="CLI"
--tracing.datadog.localAgentHostPort="127.0.0.1:8126"
```
#### `debug`
_Optional, Default=false_
Enable DataDog debug.
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```toml tab="File (TOML)"
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[tracing]
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[tracing.dataDog]
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debug = true
```
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```yaml tab="File (YAML)"
tracing:
dataDog:
debug: true
```
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```bash tab="CLI"
--tracing.datadog.debug=true
```
#### `globalTag`
_Optional, Default=empty_
Apply shared tag in a form of Key:Value to all the traces.
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```toml tab="File (TOML)"
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[tracing]
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[tracing.dataDog]
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globalTag = "sample"
```
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```yaml tab="File (YAML)"
tracing:
dataDog:
globalTag: sample
```
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```bash tab="CLI"
--tracing.datadog.globalTag="sample"
```
#### `prioritySampling`
_Optional, Default=false_
Enable priority sampling. When using distributed tracing,
this option must be enabled in order to get all the parts of a distributed trace sampled.
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```toml tab="File (TOML)"
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[tracing]
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[tracing.dataDog]
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prioritySampling = true
```
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```yaml tab="File (YAML)"
tracing:
dataDog:
prioritySampling: true
```
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```bash tab="CLI"
--tracing.datadog.prioritySampling=true
```