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chore: Add configuration for adding labels to agent-forwarded logs. #19213

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Original file line number Diff line number Diff line change
Expand Up @@ -3554,6 +3554,7 @@ There are three main sub-features:
2. Log forwarding: When enabled, the agent will capture log data and send it to New Relic.
* Context data (via [`AddCustomAttribute`](/docs/apm/agents/net-agent/net-agent-api/itransaction/#addcustomattribute)): When enabled, the agent will capture and forward any custom log attributes. The `include` and `exclude` elements are comma-separated lists of attribute names to include or exclude, following the [same rules](/docs/apm/agents/net-agent/attributes/enable-disable-attributes-net/#attruls) as other agent attribute configuration. They're both empty by default, which results in all log context data being captured and forwarded.
* Log-level filtering: When configured with one or more log levels in a comma-separated list, the agent will prevent messages at those levels from being captured and forwarded.
* Labels: When enabled, the agent adds custom labels to agent-forwarded logs. You can use the `exclude` attribute, which is a case-insensitive, comma-separated list of label names. By default, the agent adds custom labels when the `exclude` attribute is empty.
3. Local log decoration: When enabled, your existing logs will be decorated with metadata which links logs with other New Relic data, such as errors.

For more details, see [our docs on using .NET agent logs in context](/docs/logs/logs-context/net-configure-logs-context-all).
Expand All @@ -3563,6 +3564,7 @@ For more details, see [our docs on using .NET agent logs in context](/docs/logs/
<metrics enabled="true" />
<forwarding enabled="true" maxSamplesStored="10000" logLevelDenyList="">
<contextData enabled="false" include="" exclude="" />
<labels enabled="false" exclude="" />
</forwarding>
<localDecorating enabled="false" />
</applicationLogging>
Expand All @@ -3579,6 +3581,8 @@ NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CONTEXT_DATA_INCLUDE="myCustomAttribute
NEW_RELIC_APPLICATION_LOGGING_FORWARDING_CONTEXT_DATA_EXCLUDE="myCustomAttribute2, myOtherCustomAttributeMoreSpecificName"
NEW_RELIC_APPLICATION_LOGGING_FORWARDING_MAX_SAMPLES_STORED=10000
NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LOG_LEVEL_DENYLIST="debug, warn"
NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_ENABLED=true
NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_EXCLUDE="label1, label2"
NEW_RELIC_APPLICATION_LOGGING_LOCAL_DECORATING_ENABLED=true
```

Expand Down Expand Up @@ -3661,6 +3665,17 @@ The `applicationLogging` element supports the following attributes and sub-eleme
The include and exclude lists follow the [same precedence rules as other agent attributes configuration](/docs/apm/agents/net-agent/attributes/enable-disable-attributes-net/#attruls).
</Collapser>

<Collapser
id="labels"
title="labels (tags)"
>
Use this sub-element, which is a child of the `forwarding` element, to configure adding your [labels (tags)](/docs/apm/agents/net-agent/configuration/net-agent-configuration/#labels-tags) to agent-forwarded logs, in agent versions 10.34.0 and higher.

Set the `enabled` attribute to `true` to enable adding your labels to agent-forwarded logs. You can also use the environment variable `NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_ENABLED`. The default value is `false`.

The `exclude` attribute is a case-insensitive, comma-separated list of label names to exclude when you enable labels. You can also use the environment variable `NEW_RELIC_APPLICATION_LOGGING_FORWARDING_LABELS_EXCLUDE`. The default value is an empty string, which means "exclude nothing". This attribute does not support wildcards or regex.
</Collapser>

<Collapser
id="localDecorating"
title="Local log decoration"
Expand Down
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