[datadog_dashboard_v2] Add anomaly_detection to timeseries widget

[yacomink]

Summary

Syncs the anomaly_detection field from the Datadog OpenAPI spec (TimeseriesWidgetDefinition) into the datadog_dashboard_v2 FieldSpec mapping engine.

OpenAPI spec change: DataDog/datadog-api-spec#5680

Fields added:

HCL path	Type	Required
timeseries_definition.anomaly_detection	Block (optional)	No
timeseries_definition.anomaly_detection.detection_sensitivity	String enum	Yes

detection_sensitivity currently accepts only "never_detect" (disables anomaly detection).

HCL example

resource "datadog_dashboard_v2" "example" {
  title       = "Example"
  layout_type = "ordered"

  widget {
    timeseries_definition {
      title = "CPU"

      anomaly_detection {
        detection_sensitivity = "never_detect"
      }

      request {
        formula { formula_expression = "q1" }
        query {
          metric_query {
            data_source = "metrics"
            name        = "q1"
            query       = "avg:system.cpu.user{*}"
          }
        }
      }
    }
  }
}

Implementation

• datadog/dashboardmapping/widgets.go: added timeseriesWidgetAnomalyDetectionFields (one Go slice per OpenAPI schema) and anomaly_detection TypeBlock entry on TimeseriesWidgetSpec
• datadog/tests/resource_datadog_dashboard_v2_timeseries_anomaly_detection_test.go: acceptance test covering the new field
• datadog/tests/provider_test.go: registered new test file
• docs/: regenerated

Test plan

• Record cassettes: OTEL_TRACES_EXPORTER= RECORD=true TESTARGS="-run TestAccDatadogDashboardV2TimeseriesAnomalyDetection$" make testacc
• Verify replay: OTEL_TRACES_EXPORTER= RECORD=false TESTARGS="-run TestAccDatadogDashboardV2TimeseriesAnomalyDetection" make testacc
• go build ./... ✅
• go vet ./datadog/dashboardmapping/... ✅
• Unit tests (make test) ✅
• make check-docs ✅ (after committing regenerated docs)

[maycmlee]

Have a question

[maycmlee]

It sounds like there should be different levels as value, but how come the only valid values are never_detect?