switch types to updowncounter

Signed-off-by: ChrsMark <[email protected]>
open-telemetry · Dec 12, 2024 · dbb71af · dbb71af
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diff --git a/docs/non-normative/k8s-migration.md b/docs/non-normative/k8s-migration.md
@@ -46,6 +46,7 @@ and one for disabling the old schema called `semconv.k8s.disableLegacy`. Then:
   - [K8s Deployment metrics](#k8s-deployment-metrics)
   - [K8s ReplicaSet metrics](#k8s-replicaset-metrics)
   - [K8s ReplicationController metrics](#k8s-replicationcontroller-metrics)
+  - [K8s StatefulsSet metrics](#k8s-statefulsset-metrics)
   - [K8s HorizontalPodAutoscaler metrics](#k8s-horizontalpodautoscaler-metrics)
 
 <!-- tocstop -->
@@ -82,14 +83,14 @@ receiver were introduced as semantic conventions in
 [#1636](https://github.com/open-telemetry/semantic-conventions/pull/1636) (TODO: replace with SemConv version once
 available).
 
-The changes in their metric names are the following:
+The changes in their metric names and types are the following:
 
 <!-- prettier-ignore-start -->
 
-| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                             |
-|------------------------------------------------------------------------------------|---------------------------------|
-| `k8s.deployment.desired`                                                           | `k8s.deployment.desired_pods`   |
-| `k8s.deployment.available`                                                         | `k8s.deployment.available_pods` |
+| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                                          |
+|------------------------------------------------------------------------------------|--------------------------------------------------------------|
+| `k8s.deployment.desired`       (type: `gauge`)                                     | `k8s.deployment.desired_pods` (type: `updowncounter`)        |
+| `k8s.deployment.available`     (type: `gauge`)                                     | `k8s.deployment.available_pods`      (type: `updowncounter`) |
 
 <!-- prettier-ignore-end -->
 
@@ -101,14 +102,14 @@ receiver were introduced as semantic conventions in
 [#1636](https://github.com/open-telemetry/semantic-conventions/pull/1636) (TODO: replace with SemConv version once
 available).
 
-The changes in their metric names are the following:
+The changes in their metric names and types are the following:
 
 <!-- prettier-ignore-start -->
 
-| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                             |
-|------------------------------------------------------------------------------------|---------------------------------|
-| `k8s.replicaset.desired`                                                           | `k8s.replicaset.desired_pods`   |
-| `k8s.replicaset.available`                                                         | `k8s.replicaset.available_pods` |
+| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                                     |
+|------------------------------------------------------------------------------------|---------------------------------------------------------|
+| `k8s.replicaset.desired`           (type: `gauge`)                                 | `k8s.replicaset.desired_pods` (type: `updowncounter`)   |
+| `k8s.replicaset.available`         (type: `gauge`)                                 | `k8s.replicaset.available_pods` (type: `updowncounter`) |
 
 <!-- prettier-ignore-end -->
 
@@ -120,14 +121,35 @@ receiver were introduced as semantic conventions in
 [#1636](https://github.com/open-telemetry/semantic-conventions/pull/1636) (TODO: replace with SemConv version once
 available).
 
-The changes in their metric names are the following:
+The changes in their metric names and types are the following:
 
 <!-- prettier-ignore-start -->
 
-| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                         |
-|------------------------------------------------------------------------------------|---------------------------------------------|
-| `k8s.replication_controller.desired`                                               | `k8s.replication_controller.desired_pods`   |
-| `k8s.replication_controller.available`                                             | `k8s.replication_controller.available_pods` |
+| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                                                 |
+|------------------------------------------------------------------------------------|---------------------------------------------------------------------|
+| `k8s.replication_controller.desired`           (type: `gauge`)                     | `k8s.replication_controller.desired_pods` (type: `updowncounter`)   |
+| `k8s.replication_controller.available`         (type: `gauge`)                     | `k8s.replication_controller.available_pods` (type: `updowncounter`) |
+
+<!-- prettier-ignore-end -->
+
+### K8s StatefulsSet metrics
+
+The K8s StatefulsSet metrics implemented by the Collector and specifically the
+[k8scluster](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/v0.115.0/receiver/k8sclusterreceiver/documentation.md)
+receiver were introduced as semantic conventions in
+[#1636](https://github.com/open-telemetry/semantic-conventions/pull/1636) (TODO: replace with SemConv version once
+available).
+
+The changes in their metric types are the following:
+
+<!-- prettier-ignore-start -->
+
+| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                                      |
+|------------------------------------------------------------------------------------|----------------------------------------------------------|
+| `k8s.statefulset.desired_pods`                  (type: `gauge`)                    | `k8s.statefulset.desired_pods` (type: `updowncounter`)   |
+| `k8s.statefulset.ready_pods`                  (type: `gauge`)                      | `k8s.statefulset.ready_pods` (type: `updowncounter`)     |
+| `k8s.statefulset.current_pods`                       (type: `gauge`)               | `k8s.statefulset.current_pods`  (type: `updowncounter`)  |
+| `k8s.statefulset.updated_pods`                      (type: `gauge`)                | `k8s.statefulset.updated_pods`   (type: `updowncounter`) |
 
 <!-- prettier-ignore-end -->
 
@@ -139,15 +161,15 @@ receiver were introduced as semantic conventions in
 [#1636](https://github.com/open-telemetry/semantic-conventions/pull/1636) (TODO: replace with SemConv version once
 available).
 
-The changes in their metric names are the following:
+The changes in their metric names and types are the following:
 
 <!-- prettier-ignore-start -->
 
-| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                    |
-|------------------------------------------------------------------------------------|------------------------|
-| `k8s.hpa.desired_replicas`                                                         | `k8s.hpa.desired_pods` |
-| `k8s.hpa.current_replicas`                                                         | `k8s.hpa.current_pods` |
-| `k8s.hpa.max_replicas`                                                             | `k8s.hpa.max_pods`     |
-| `k8s.hpa.min_replicas`                                                             | `k8s.hpa.min_pods`     |
+| Old (Collector) ![changed](https://img.shields.io/badge/changed-orange?style=flat) | New                                            |
+|------------------------------------------------------------------------------------|------------------------------------------------|
+| `k8s.hpa.desired_replicas`                  (type: `gauge`)                        | `k8s.hpa.desired_pods` (type: `updowncounter`) |
+| `k8s.hpa.current_replicas`                  (type: `gauge`)                        | `k8s.hpa.current_pods` (type: `updowncounter`) |
+| `k8s.hpa.max_replicas`                       (type: `gauge`)                       | `k8s.hpa.max_pods`  (type: `updowncounter`)    |
+| `k8s.hpa.min_replicas`                      (type: `gauge`)                        | `k8s.hpa.min_pods`   (type: `updowncounter`)   |
 
 <!-- prettier-ignore-end -->
diff --git a/docs/system/k8s-metrics.md b/docs/system/k8s-metrics.md
@@ -394,7 +394,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.deployment.desired_pods` | Gauge | `{pod}` | Number of desired replica pods in this deployment [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.deployment.desired_pods` | UpDownCounter | `{pod}` | Number of desired replica pods in this deployment [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `replicas` field of the
 [K8s DeploymentSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#deploymentspec-v1-apps)
@@ -417,7 +417,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.deployment.available_pods` | Gauge | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this deployment [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.deployment.available_pods` | UpDownCounter | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this deployment [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `availableReplicas` field of the
 [K8s DeploymentStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#deploymentstatus-v1-apps)
@@ -444,7 +444,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.replicaset.desired_pods` | Gauge | `{pod}` | Number of desired replica pods in this replicaset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.replicaset.desired_pods` | UpDownCounter | `{pod}` | Number of desired replica pods in this replicaset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `replicas` field of the
 [K8s ReplicaSetSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#replicasetspec-v1-apps)
@@ -467,7 +467,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.replicaset.available_pods` | Gauge | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this replicaset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.replicaset.available_pods` | UpDownCounter | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this replicaset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `availableReplicas` field of the
 [K8s ReplicaSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#replicasetstatus-v1-apps)
@@ -494,7 +494,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.replication_controller.desired_pods` | Gauge | `{pod}` | Number of desired replica pods in this replication controller [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.replication_controller.desired_pods` | UpDownCounter | `{pod}` | Number of desired replica pods in this replication controller [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `replicas` field of the
 [K8s ReplicationControllerSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#replicationcontrollerspec-v1-core)
@@ -517,7 +517,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.replication_controller.available_pods` | Gauge | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this replication controller [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.replication_controller.available_pods` | UpDownCounter | `{pod}` | Total number of available replica pods (ready for at least minReadySeconds) targeted by this replication controller [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `availableReplicas` field of the
 [K8s ReplicationControllerStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#replicationcontrollerstatus-v1-core)
@@ -544,7 +544,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.statefulset.desired_pods` | Gauge | `{pod}` | Number of desired replica pods in this statefulset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.statefulset.desired_pods` | UpDownCounter | `{pod}` | Number of desired replica pods in this statefulset [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `replicas` field of the
 [K8s StatefulSetSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#statefulsetspec-v1-apps)
@@ -567,7 +567,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.statefulset.ready_pods` | Gauge | `{pod}` | The number of replica pods created for this statefulset with a Ready Condition [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.statefulset.ready_pods` | UpDownCounter | `{pod}` | The number of replica pods created for this statefulset with a Ready Condition [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `readyReplicas` field of the
 [K8s StatefulSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#statefulsetstatus-v1-apps)
@@ -590,7 +590,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.statefulset.current_pods` | Gauge | `{pod}` | The number of replica pods created by the statefulset controller from the statefulset version indicated by currentRevision [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.statefulset.current_pods` | UpDownCounter | `{pod}` | The number of replica pods created by the statefulset controller from the statefulset version indicated by currentRevision [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `currentReplicas` field of the
 [K8s StatefulSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#statefulsetstatus-v1-apps)
@@ -613,7 +613,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.statefulset.updated_pods` | Gauge | `{pod}` | Number of replica pods created by the statefulset controller from the statefulset version indicated by updateRevision [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.statefulset.updated_pods` | UpDownCounter | `{pod}` | Number of replica pods created by the statefulset controller from the statefulset version indicated by updateRevision [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `updatedReplicas` field of the
 [K8s StatefulSetStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#statefulsetstatus-v1-apps)
@@ -640,7 +640,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.hpa.desired_pods` | Gauge | `{pod}` | Desired number of replica pods managed by this horizontal pod autoscaler, as last calculated by the autoscaler [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.hpa.desired_pods` | UpDownCounter | `{pod}` | Desired number of replica pods managed by this horizontal pod autoscaler, as last calculated by the autoscaler [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `desiredReplicas` field of the
 [K8s HorizontalPodAutoscalerStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#horizontalpodautoscalerstatus-v2-autoscaling)
@@ -663,7 +663,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.hpa.current_pods` | Gauge | `{pod}` | Current number of replica pods managed by this horizontal pod autoscaler, as last seen by the autoscaler [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.hpa.current_pods` | UpDownCounter | `{pod}` | Current number of replica pods managed by this horizontal pod autoscaler, as last seen by the autoscaler [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `currentReplicas` field of the
 [K8s HorizontalPodAutoscalerStatus](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#horizontalpodautoscalerstatus-v2-autoscaling)
@@ -686,7 +686,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.hpa.max_pods` | Gauge | `{pod}` | The upper limit for the number of replica pods to which the autoscaler can scale up [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.hpa.max_pods` | UpDownCounter | `{pod}` | The upper limit for the number of replica pods to which the autoscaler can scale up [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `maxReplicas` field of the
 [K8s HorizontalPodAutoscalerSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#horizontalpodautoscalerspec-v2-autoscaling)
@@ -709,7 +709,7 @@ This metric is [recommended][MetricRecommended].
 
 | Name     | Instrument Type | Unit (UCUM) | Description    | Stability |
 | -------- | --------------- | ----------- | -------------- | --------- |
-| `k8s.hpa.min_pods` | Gauge | `{pod}` | The lower limit for the number of replica pods to which the autoscaler can scale down [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
+| `k8s.hpa.min_pods` | UpDownCounter | `{pod}` | The lower limit for the number of replica pods to which the autoscaler can scale down [1] | ![Experimental](https://img.shields.io/badge/-experimental-blue) |
 
 **[1]:** This metric aligns with the `minReplicas` field of the
 [K8s HorizontalPodAutoscalerSpec](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.30/#horizontalpodautoscalerspec-v2-autoscaling)