[chore] Move otel.* attributes to registry (#891)

docs/attributes-registry/otel.md

@@ -5,12 +5,29 @@
 
 <!-- toc -->
 
-- [OpenTelemetry Attributes](#opentelemetry-attributes)
+- [General Attributes](#general-attributes)
+- [Scope Attributes](#scope-attributes)
 - [Deprecated OpenTelemetry Attributes](#deprecated-opentelemetry-attributes)
 
 <!-- tocstop -->
 
-## OpenTelemetry Attributes
+## General Attributes
+
+<!-- semconv registry.otel(omit_requirement_level) -->
+| Attribute  | Type | Description  | Examples  | Stability |
+|---|---|---|---|---|
+| `otel.status_code` | string | Name of the code, either "OK" or "ERROR". MUST NOT be set if the status code is UNSET. | `OK` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
+| `otel.status_description` | string | Description of the Status if it has a value, otherwise not set. | `resource not found` | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
+
+`otel.status_code` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.
+
+| Value  | Description | Stability |
+|---|---|---|
+| `OK` | The operation has been validated by an Application developer or Operator to have completed successfully. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
+| `ERROR` | The operation contains an error. | ![Stable](https://img.shields.io/badge/-stable-lightgreen) |
+<!-- endsemconv -->
+
+## Scope Attributes
 
 <!-- semconv registry.otel.scope(omit_requirement_level) -->
 | Attribute  | Type | Description  | Examples  | Stability |

model/registry/otel.yaml

@@ -1,4 +1,28 @@
 groups:
+  - id: registry.otel
+    prefix: otel
+    type: attribute_group
+    brief: Attributes reserved for OpenTelemetry
+    attributes:
+      - id: status_code
+        type:
+          allow_custom_values: true
+          members:
+            - id: ok
+              value: OK
+              brief: 'The operation has been validated by an Application developer or Operator to have completed successfully.'
+              stability: stable
+            - id: error
+              value: ERROR
+              brief: 'The operation contains an error.'
+              stability: stable
+        brief: Name of the code, either "OK" or "ERROR". MUST NOT be set if the status code is UNSET.
+        stability: stable
+      - id: status_description
+        type: string
+        brief: "Description of the Status if it has a value, otherwise not set."
+        examples: ['resource not found']
+        stability: stable
   - id: registry.otel.scope
     prefix: otel.scope
     type: resource

model/trace/exporter/exporter.yaml

@@ -1,25 +1,9 @@
 groups:
   - id: otel_span
-    prefix: otel
     type: span
     brief: Span attributes used by non-OTLP exporters to represent OpenTelemetry Span's concepts.
     attributes:
-      - id: status_code
+      - ref: otel.status_code
-        type:
+        requirement_level: recommended
-          allow_custom_values: false
+      - ref: otel.status_description
-          members:
+        requirement_level: recommended
-            - id: ok
-              value: OK
-              brief: 'The operation has been validated by an Application developer or Operator to have completed successfully.'
-              stability: experimental
-            - id: error
-              value: ERROR
-              brief: 'The operation contains an error.'
-              stability: experimental
-        brief: Name of the code, either "OK" or "ERROR". MUST NOT be set if the status code is UNSET.
-        stability: stable
-      - id: status_description
-        type: string
-        brief: "Description of the Status if it has a value, otherwise not set."
-        examples: ['resource not found']
-        stability: stable