Add k8s daemonset metrics

Signed-off-by: ChrsMark <[email protected]>
open-telemetry · Dec 14, 2024 · 64ea1f3 · 64ea1f3
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diff --git a/.chloggen/add_ds_metrics.yaml b/.chloggen/add_ds_metrics.yaml
@@ -0,0 +1,22 @@
+# Use this changelog template to create an entry for release notes.
+#
+# If your change doesn't affect end users you should instead start
+# your pull request title with [chore] or use the "Skip Changelog" label.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the area of concern in the attributes-registry, (e.g. http, cloud, db)
+component: k8s
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Add k8s deamonset related metrics
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+# The values here must be integers.
+issues: [1649]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
diff --git a/docs/system/k8s-metrics.md b/docs/system/k8s-metrics.md
@@ -329,5 +329,97 @@ This metric is [recommended][MetricRecommended].
 <!-- END AUTOGENERATED TEXT -->
 <!-- endsemconv -->
 
+### Metric: `k8s.daemonset.current_scheduled_nodes`
+
+This metric is [recommended][MetricRecommended].
+
+<!-- semconv metric.k8s.daemonset.current_scheduled_nodes -->
+<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
+<!-- see templates/registry/markdown/snippet.md.j2 -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-capture -->
+<!-- markdownlint-disable -->
+
+| Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
+| -------- | --------------- | ----------- | -------------- | --------- |
+| `k8s.daemonset.current_scheduled_nodes` | Gauge | `{node}` | Number of nodes that are running at least 1 daemon pod and are supposed to run the daemon pod [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+
+**[1]:** This metric aligns with the `currentNumberScheduled` field of the
+[K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+<!-- END AUTOGENERATED TEXT -->
+<!-- endsemconv -->
+
+### Metric: `k8s.daemonset.desired_scheduled_nodes`
+
+This metric is [recommended][MetricRecommended].
+
+<!-- semconv metric.k8s.daemonset.desired_scheduled_nodes -->
+<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
+<!-- see templates/registry/markdown/snippet.md.j2 -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-capture -->
+<!-- markdownlint-disable -->
+
+| Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
+| -------- | --------------- | ----------- | -------------- | --------- |
+| `k8s.daemonset.desired_scheduled_nodes` | Gauge | `{node}` | Number of nodes that should be running the daemon pod (including nodes currently running the daemon pod) [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+
+**[1]:** This metric aligns with the `desiredNumberScheduled` field of the
+[K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+<!-- END AUTOGENERATED TEXT -->
+<!-- endsemconv -->
+
+### Metric: `k8s.daemonset.misscheduled_nodes`
+
+This metric is [recommended][MetricRecommended].
+
+<!-- semconv metric.k8s.daemonset.misscheduled_nodes -->
+<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
+<!-- see templates/registry/markdown/snippet.md.j2 -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-capture -->
+<!-- markdownlint-disable -->
+
+| Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
+| -------- | --------------- | ----------- | -------------- | --------- |
+| `k8s.daemonset.misscheduled_nodes` | Gauge | `{node}` | Number of nodes that are running the daemon pod, but are not supposed to run the daemon pod [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+
+**[1]:** This metric aligns with the `numberMisscheduled` field of the
+[K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+<!-- END AUTOGENERATED TEXT -->
+<!-- endsemconv -->
+
+### Metric: `k8s.daemonset.ready_nodes`
+
+This metric is [recommended][MetricRecommended].
+
+<!-- semconv metric.k8s.daemonset.ready_nodes -->
+<!-- NOTE: THIS TEXT IS AUTOGENERATED. DO NOT EDIT BY HAND. -->
+<!-- see templates/registry/markdown/snippet.md.j2 -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-capture -->
+<!-- markdownlint-disable -->
+
+| Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
+| -------- | --------------- | ----------- | -------------- | --------- |
+| `k8s.daemonset.ready_nodes` | Gauge | `{node}` | Number of nodes that should be running the daemon pod and have one or more of the daemon pod running and ready [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+
+**[1]:** This metric aligns with the `numberReady` field of the
+[K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+<!-- END AUTOGENERATED TEXT -->
+<!-- endsemconv -->
+
 [DocumentStatus]: https://opentelemetry.io/docs/specs/otel/document-status
 [MetricRecommended]: /docs/general/metric-requirement-level.md#recommended
diff --git a/model/k8s/metrics.yaml b/model/k8s/metrics.yaml
@@ -126,3 +126,45 @@ groups:
     attributes:
       - ref: network.interface.name
       - ref: network.io.direction
+
+  # k8s.daemonset.* metrics
+  - id: metric.k8s.daemonset.current_scheduled_nodes
+    type: metric
+    metric_name: k8s.daemonset.current_scheduled_nodes
+    stability: experimental
+    brief: "Number of nodes that are running at least 1 daemon pod and are supposed to run the daemon pod"
+    note: |
+      This metric aligns with the `currentNumberScheduled` field of the
+      [K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+    instrument: gauge
+    unit: "{node}"
+  - id: metric.k8s.daemonset.desired_scheduled_nodes
+    type: metric
+    metric_name: k8s.daemonset.desired_scheduled_nodes
+    stability: experimental
+    brief: "Number of nodes that should be running the daemon pod (including nodes currently running the daemon pod)"
+    note: |
+      This metric aligns with the `desiredNumberScheduled` field of the
+      [K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+    instrument: gauge
+    unit: "{node}"
+  - id: metric.k8s.daemonset.misscheduled_nodes
+    type: metric
+    metric_name: k8s.daemonset.misscheduled_nodes
+    stability: experimental
+    brief: "Number of nodes that are running the daemon pod, but are not supposed to run the daemon pod"
+    note: |
+      This metric aligns with the `numberMisscheduled` field of the
+      [K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+    instrument: gauge
+    unit: "{node}"
+  - id: metric.k8s.daemonset.ready_nodes
+    type: metric
+    metric_name: k8s.daemonset.ready_nodes
+    stability: experimental
+    brief: "Number of nodes that should be running the daemon pod and have one or more of the daemon pod running and ready"
+    note: |
+      This metric aligns with the `numberReady` field of the
+      [K8s DaemonSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#daemonsetstatus-v1-apps)
+    instrument: gauge
+    unit: "{node}"