Expanding k8s.pod resource to include pod labels (#494)

Co-authored-by: Armin Ruech <7052238+arminru@users.noreply.github.com>
Co-authored-by: Alexander Wert <AlexanderWert@users.noreply.github.com>

CHANGELOG.md

@@ -23,6 +23,8 @@ release.
 
 ### Features
 
+- Adds `labels` attribute to `k8s.pod` resource
+  ([#494](https://github.com/open-telemetry/semantic-conventions/pull/494))
 - Add `code.stacktrace` attribute
   ([#435](https://github.com/open-telemetry/semantic-conventions/pull/435))
 - Add `http.flavor` and `http.user_agent` to list of deprecated attributes

docs/attributes-registry/k8s.md

@@ -20,6 +20,7 @@
 | `k8s.namespace.name` | string | The name of the namespace that the pod is running in. | `default` | Recommended |
 | `k8s.node.name` | string | The name of the Node. | `node-1` | Recommended |
 | `k8s.node.uid` | string | The UID of the Node. | `1eb3a0c6-0477-4080-a9cb-0cb7db65c6a2` | Recommended |
+| `k8s.pod.labels.<key>` | string | The labels placed on the Pod, the `<key>` being the label name, the value being the label value. | `k8s.pod.labels.app=my-app`; `k8s.pod.labels.mycompany.io/arch=x64`; `k8s.pod.labels.data=` | Recommended |
 | `k8s.pod.name` | string | The name of the Pod. | `opentelemetry-pod-autoconf` | Recommended |
 | `k8s.pod.uid` | string | The UID of the Pod. | `275ecb36-5aa8-4c2a-9c47-d8bb681b9aff` | Recommended |
 | `k8s.replicaset.name` | string | The name of the ReplicaSet. | `opentelemetry` | Recommended |

docs/resource/k8s.md

@@ -91,6 +91,7 @@ containers on your cluster.
 <!-- semconv k8s.pod -->
 | Attribute  | Type | Description  | Examples  | Requirement Level |
 |---|---|---|---|---|
+| [`k8s.pod.labels.<key>`](../attributes-registry/k8s.md) | string | The labels placed on the Pod, the `<key>` being the label name, the value being the label value. | `k8s.pod.labels.app=my-app`; `k8s.pod.labels.mycompany.io/arch=x64`; `k8s.pod.labels.data=` | Recommended |
 | [`k8s.pod.name`](../attributes-registry/k8s.md) | string | The name of the Pod. | `opentelemetry-pod-autoconf` | Recommended |
 | [`k8s.pod.uid`](../attributes-registry/k8s.md) | string | The UID of the Pod. | `275ecb36-5aa8-4c2a-9c47-d8bb681b9aff` | Recommended |
 <!-- endsemconv -->

model/registry/k8s.yaml

@@ -64,6 +64,11 @@ groups:
         brief: >
           The name of the Pod.
         examples: ['opentelemetry-pod-autoconf']
+      - id: pod.labels
+        type: template[string]
+        brief: >
+          The labels placed on the Pod, the `<key>` being the label name, the value being the label value.
+        examples: ['k8s.pod.labels.app=my-app', 'k8s.pod.labels.mycompany.io/arch=x64', 'k8s.pod.labels.data=']
       - id: container.name
         type: string
         brief: >

model/resource/k8s.yaml

@@ -33,6 +33,7 @@ groups:
     attributes:
       - ref: k8s.pod.uid
       - ref: k8s.pod.name
+      - ref: k8s.pod.labels
 
   - id: k8s.container
     prefix: k8s.container