Documentation Grafana Alloy Reference Components otelcol otelcol.receiver.datadog

Experimental

otelcol.receiver.datadog

EXPERIMENTAL: This is an experimental component. Experimental components are subject to frequent breaking changes, and may be removed with no equivalent replacement. The stability.level flag must be set to experimental to use the component.

otelcol.receiver.datadog accepts Datadog metrics and traces over the network and forwards it to other otelcol.* components.

You can specify multiple otelcol.receiver.datadog components by giving them different labels.

Usage

alloy Copy

otelcol.receiver.datadog "LABEL" {
  output {
    metrics = [...]
    traces  = [...]
  }
}

Arguments

otelcol.receiver.datadog supports the following arguments:

By default, otelcol.receiver.datadog listens for HTTP connections on localhost. To expose the HTTP server to other machines on your network, configure endpoint with the IP address to listen on, or 0.0.0.0:8126 to listen on all network interfaces.

Blocks

The following blocks are supported inside the definition of otelcol.receiver.datadog:

tls block

The tls block configures TLS settings used for a server. If the tls block isn’t provided, TLS won’t be used for connections to the server.

The following arguments are supported:

If reload_interval is set to "0s", the certificate never reloaded.

The following pairs of arguments are mutually exclusive and can’t both be set simultaneously:

• ca_pem and ca_file
• cert_pem and cert_file
• key_pem and key_file

If cipher_suites is left blank, a safe default list is used. Refer to the Go Cipher Suites documentation for a list of supported cipher suites.

client_ca_file sets the ClientCA and ClientAuth to RequireAndVerifyClientCert in the TLSConfig. Refer to the Go TLS documentation for more information.

cors block

The cors block configures CORS settings for an HTTP server.

The following arguments are supported:

The allowed_headers argument specifies which headers are acceptable from a CORS request. The following headers are always implicitly allowed:

• Accept
• Accept-Language
• Content-Type
• Content-Language

If allowed_headers includes "*", all headers are permitted.

debug_metrics block

The debug_metrics block configures the metrics that this component generates to monitor its state.

The following arguments are supported:

disable_high_cardinality_metrics is the Grafana Alloy equivalent to the telemetry.disableHighCardinalityMetrics feature gate in the OpenTelemetry Collector. It removes attributes that could cause high cardinality metrics. For example, attributes with IP addresses and port numbers in metrics about HTTP and gRPC connections are removed.

level is the Alloy equivalent to the telemetry.metrics.level feature gate in the OpenTelemetry Collector. Possible values are "none", "basic", "normal" and "detailed".

output block

The output block configures a set of components to forward resulting telemetry data to.

The following arguments are supported:

You must specify the output block, but all its arguments are optional. By default, telemetry data is dropped. Configure the metrics, logs, and traces arguments accordingly to send telemetry data to other components.

Exported fields

otelcol.receiver.datadog does not export any fields.

Component health

otelcol.receiver.datadog is only reported as unhealthy if given an invalid configuration.

Debug information

otelcol.receiver.datadog does not expose any component-specific debug information.

Example

This example forwards received telemetry through a batch processor before finally sending it to an OTLP-capable endpoint:

alloy Copy

otelcol.receiver.datadog "default" {
  output {
    metrics = [otelcol.processor.batch.default.input]
    traces  = [otelcol.processor.batch.default.input]
  }
}

otelcol.processor.batch "default" {
  output {
    metrics = [otelcol.exporter.otlp.default.input]
    traces  = [otelcol.exporter.otlp.default.input]
  }
}

otelcol.exporter.otlp "default" {
  client {
    endpoint = sys.env("OTLP_ENDPOINT")
  }
}

Compatible components

otelcol.receiver.datadog can accept arguments from the following components:

• Components that export OpenTelemetry otelcol.Consumer