[exporter/datadog] Add support for Live Processes metrics upload to Datadog

[ZenykK]

Component(s)

exporter/datadog

Is your feature request related to a problem? Please describe.

Currently datadogexporter supports only sending Metrics, Traces, Logs and HostMetadata onto Datadog SaaS (at least judging by configuration options):

// createDefaultConfig creates the default exporter configuration
func (f *factory) createDefaultConfig() component.Config {
	return &Config{
		TimeoutSettings: defaulttimeoutSettings(),
		RetrySettings:   exporterhelper.NewDefaultRetrySettings(),
		QueueSettings:   exporterhelper.NewDefaultQueueSettings(),

		API: APIConfig{
			Site: "datadoghq.com",
		},

		Metrics: MetricsConfig{
			TCPAddr: confignet.TCPAddr{
				Endpoint: "https://api.datadoghq.com",
			},
			DeltaTTL: 3600,
			ExporterConfig: MetricsExporterConfig{
				ResourceAttributesAsTags:           false,
				InstrumentationScopeMetadataAsTags: false,
			},
			HistConfig: HistogramConfig{
				Mode:             "distributions",
				SendAggregations: false,
			},
			SumConfig: SumConfig{
				CumulativeMonotonicMode:        CumulativeMonotonicSumModeToDelta,
				InitialCumulativeMonotonicMode: InitialValueModeAuto,
			},
			SummaryConfig: SummaryConfig{
				Mode: SummaryModeGauges,
			},
		},

		Traces: TracesConfig{
			TCPAddr: confignet.TCPAddr{
				Endpoint: "https://trace.agent.datadoghq.com",
			},
			IgnoreResources: []string{},
		},

		Logs: LogsConfig{
			TCPAddr: confignet.TCPAddr{
				Endpoint: "https://http-intake.logs.datadoghq.com",
			},
		},

		HostMetadata: HostMetadataConfig{
			Enabled:        true,
			HostnameSource: HostnameSourceConfigOrSystem,
		},
	}
}

Describe the solution you'd like

We'd like to have the ability to send Process level metrics we're scrating with the hostmetrics receiver onto Datadog and have them appear on Live Processes menu.
Judging by datadog-process-agent code, processes metrics are expected to arrive at a different Endpoint rather then Metrics: https://github.com/DataDog/datadog-agent/blob/45a28e222a96fb99954eaa84e3cff52058d7b65f/comp/forwarder/defaultforwarder/endpoints/endpoints.go#L37
And probably with the different data_type rather than "metric".

Describe alternatives you've considered

To replicate whatever the Datadog's own Process Agent is doing and how it's formatting data is arguably the best option here.

Additional context

No response

[github-actions]

Pinging code owners:

• exporter/datadog: @mx-psi @gbbr @dineshg13 @liustanley @songy23 @mackjmr

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[mackjmr]

Thanks for reaching out. This is not supported today, please reach out to our support team so we can track this request.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• exporter/datadog: @mx-psi @dineshg13 @liustanley @songy23 @mackjmr

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• exporter/datadog: @mx-psi @dineshg13 @liustanley @songy23 @mackjmr

See Adding Labels via Comments if you do not have permissions to add labels yourself.

[github-actions]

This issue has been closed as inactive because it has been stale for 120 days with no activity.