feat: add config DD_TRACE_RUNTIME_ID_ENABLED (#13618)

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- The change includes or references documentation updates if necessary
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Author: ZStriker19

ddtrace/settings/_config.py

@@ -535,7 +535,7 @@ def __init__(self):
             "DD_RUNTIME_METRICS_ENABLED", False, asbool, "OTEL_METRICS_EXPORTER"
         )
         self._runtime_metrics_runtime_id_enabled = _get_config(
-            "DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED", False, asbool
+            ["DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED", "DD_TRACE_RUNTIME_ID_ENABLED"], False, asbool
         )
         self._experimental_features_enabled = _get_config(
             "DD_TRACE_EXPERIMENTAL_FEATURES_ENABLED", set(), lambda x: set(x.strip().upper().split(","))

docs/configuration.rst

@@ -856,10 +856,11 @@ Other
          These metrics track the memory management and concurrency of the python runtime. 
          Refer to the following `docs <https://docs.datadoghq.com/tracing/metrics/runtime_metrics/python/>` _ for more information.
 
-   DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED:
+   DD_TRACE_RUNTIME_ID_ENABLED:
      type: Boolean
      default: False
      version_added:
+       v3.10.0: Renamed from ``DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED``
        v3.2.0: Adds initial support
 
      description: |

releasenotes/notes/add_DD_TRACE_RUNTIME_ID_ENABLED-8e9d518dfd0028f2.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    tracer: Adds the environment variable ``DD_TRACE_RUNTIME_ID_ENABLED`` to enable runtime metrics for tagging runtime metrics with the current runtime ID. This is useful for tracking runtime metrics across multiple processes. Previously, this was ``DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED``.

tests/runtime/test_runtime_metrics_api.py

@@ -198,7 +198,12 @@ def test_runtime_metrics_enable_environ(monkeypatch, environ):
         RuntimeMetrics.disable()
 
 
-@pytest.mark.subprocess(parametrize={"DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED": ["true", "false"]})
+@pytest.mark.subprocess(
+    parametrize={
+        "DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED": ["true", "false"],
+        "DD_TRACE_RUNTIME_ID_ENABLED": ["true", "false"],
+    }
+)
 def test_runtime_metrics_experimental_runtime_tag():
     """
     When runtime metrics is enabled and DD_TRACE_EXPERIMENTAL_FEATURES_ENABLED=DD_RUNTIME_METRICS_ENABLED
@@ -217,12 +222,18 @@ def test_runtime_metrics_experimental_runtime_tag():
     assert worker_instance.status == ServiceStatus.RUNNING
 
     runtime_id_tag = f"runtime-id:{get_runtime_id()}"
-    if os.environ["DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED"] == "true":
+    if (
+        os.environ["DD_TRACE_RUNTIME_ID_ENABLED"] == "true"
+        or os.environ["DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED"] == "true"
+    ):
         assert runtime_id_tag in worker_instance._platform_tags, worker_instance._platform_tags
-    elif os.environ["DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED"] == "false":
+    elif (
+        os.environ["DD_TRACE_RUNTIME_ID_ENABLED"] == "false"
+        or os.environ["DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED"] == "false"
+    ):
         assert runtime_id_tag not in worker_instance._platform_tags, worker_instance._platform_tags
     else:
-        raise pytest.fail("Invalid value for DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED")
+        raise pytest.fail("Invalid value for DD_TRACE_RUNTIME_ID_ENABLED or DD_TRACE_EXPERIMENTAL_RUNTIME_ID_ENABLED")
 
 
 @pytest.mark.subprocess(