Add observability pipelines splunk HEC metrics destination

data/api/v2/full_spec.yaml

@@ -56349,6 +56349,7 @@ components:
         - $ref: "#/components/schemas/ObservabilityPipelineSyslogNgDestination"
         - $ref: "#/components/schemas/ObservabilityPipelineDatabricksZerobusDestination"
         - $ref: "#/components/schemas/ObservabilityPipelineDatadogMetricsDestination"
+        - $ref: "#/components/schemas/ObservabilityPipelineSplunkHecMetricsDestination"
     ObservabilityPipelineConfigPipelineType:
       default: logs
       description: The type of data being ingested. Defaults to `logs` if not specified.
@@ -60470,6 +60471,81 @@ components:
       type: string
       x-enum-varnames:
         - SPLUNK_HEC
+    ObservabilityPipelineSplunkHecMetricsDestination:
+      description: |-
+        The `splunk_hec_metrics` destination forwards metrics to Splunk using the HTTP Event Collector (HEC).
+
+        **Supported pipeline types:** metrics
+      properties:
+        buffer:
+          $ref: "#/components/schemas/ObservabilityPipelineBufferOptions"
+        compression:
+          $ref: "#/components/schemas/ObservabilityPipelineSplunkHecMetricsDestinationCompression"
+        default_namespace:
+          description: Optional default namespace for metrics sent to Splunk HEC.
+          example: "custom_namespace"
+          type: string
+        endpoint_url_key:
+          description: Name of the environment variable or secret that holds the Splunk HEC endpoint URL.
+          example: SPLUNK_HEC_ENDPOINT_URL
+          type: string
+        id:
+          description: The unique identifier for this component. Used in other parts of the pipeline to reference this component (for example, as the `input` to downstream components).
+          example: splunk-hec-metrics-destination
+          type: string
+        index:
+          description: Optional name of the Splunk index where metrics are written.
+          example: "metrics"
+          type: string
+        inputs:
+          description: A list of component IDs whose output is used as the `input` for this component.
+          example: ["metrics-filter-processor"]
+          items:
+            description: The ID of a component whose output is used as input for this destination.
+            type: string
+          type: array
+        source:
+          description: The Splunk source field value for metric events.
+          example: "observability_pipelines"
+          type: string
+        sourcetype:
+          description: The Splunk sourcetype to assign to metric events.
+          example: "custom_sourcetype"
+          type: string
+        tls:
+          $ref: "#/components/schemas/ObservabilityPipelineTls"
+        token_key:
+          description: Name of the environment variable or secret that holds the Splunk HEC token.
+          example: SPLUNK_HEC_TOKEN
+          type: string
+        type:
+          $ref: "#/components/schemas/ObservabilityPipelineSplunkHecMetricsDestinationType"
+      required:
+        - id
+        - type
+        - inputs
+      type: object
+      x-pipeline-types: [metrics]
+    ObservabilityPipelineSplunkHecMetricsDestinationCompression:
+      default: none
+      description: Compression algorithm applied when sending metrics to Splunk HEC.
+      enum:
+        - none
+        - gzip
+      example: none
+      type: string
+      x-enum-varnames:
+        - NONE
+        - GZIP
+    ObservabilityPipelineSplunkHecMetricsDestinationType:
+      default: splunk_hec_metrics
+      description: The destination type. Always `splunk_hec_metrics`.
+      enum:
+        - splunk_hec_metrics
+      example: splunk_hec_metrics
+      type: string
+      x-enum-varnames:
+        - SPLUNK_HEC_METRICS
     ObservabilityPipelineSplunkHecSource:
       description: |-
         The `splunk_hec` source implements the Splunk HTTP Event Collector (HEC) API.