Add android.yaml and android.os.api.level resource attribute (#328)

Co-authored-by: Alexander Wert <AlexanderWert@users.noreply.github.com>
Co-authored-by: Joao Grassi <joao.grassi@dynatrace.com>

CHANGELOG.md

@@ -112,6 +112,8 @@ release.
   ([#247](https://github.com/open-telemetry/semantic-conventions/pull/247))
 - Move non-`network.*` attributes out of network.yaml.
   ([#296](https://github.com/open-telemetry/semantic-conventions/pull/296))
+- Introducing Android `android.os.api_level` resource attribute.
+  ([#328](https://github.com/open-telemetry/semantic-conventions/pull/328))
 
 ## v1.21.0 (2023-07-13)
 

docs/resource/android.md

@@ -0,0 +1,15 @@
+# Android
+
+**Status**: [Experimental][DocumentStatus]
+
+**type:** `android`
+
+**Description**: The Android platform on which the Android application is running.
+
+<!-- semconv android -->
+| Attribute  | Type | Description  | Examples  | Requirement Level |
+|---|---|---|---|---|
+| `android.os.api_level` | string | Uniquely identifies the framework API revision offered by a version (`os.version`) of the android operating system. More information can be found [here](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels). | `33`; `32` | Recommended |
+<!-- endsemconv -->
+
+[DocumentStatus]: https://github.com/open-telemetry/opentelemetry-specification/tree/v1.22.0/specification/document-status.md

model/resource/android.yaml

@@ -0,0 +1,14 @@
+groups:
+  - id: android
+    prefix: android
+    type: resource
+    brief: >
+      The Android platform on which the Android application is running.
+    attributes:
+      - id: os.api_level
+        type: string
+        brief: >
+          Uniquely identifies the framework API revision offered by a version
+          (`os.version`) of the android operating system. More information can be found
+          [here](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels).
+        examples: ['33', '32']