[receiver/k8scluster] Change k8s.replicationcontroller metrics to use…

… mdatagen (open-telemetry#24268)

.chloggen/k8s-cluster-receiver-replicationcontroller.yaml

@@ -0,0 +1,20 @@
+# Use this changelog template to create an entry for release notes.
+# If your change doesn't affect end users, such as a test fix or a tooling change,
+# 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 component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: k8sclusterreceiver
+
+# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: "Update k8s.replicationcontroller metrics to use mdatagen"
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [10553]
+
+# (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:

receiver/k8sclusterreceiver/internal/collection/collector.go

@@ -110,7 +110,7 @@ func (dc *DataCollector) SyncMetrics(obj interface{}) {
  case *corev1.Namespace:
  md = namespace.GetMetrics(dc.settings, o)
  case *corev1.ReplicationController:
- md = ocsToMetrics(replicationcontroller.GetMetrics(o))
+ md = replicationcontroller.GetMetrics(dc.settings, o)
  case *corev1.ResourceQuota:
  md = resourcequota.GetMetrics(dc.settings, o)
  case *appsv1.Deployment:

receiver/k8sclusterreceiver/internal/replicationcontroller/doc.go

@@ -0,0 +1,6 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+//go:generate mdatagen metadata.yaml
+
+package replicationcontroller // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/k8sclusterreceiver/internal/replicationcontroller"

receiver/k8sclusterreceiver/internal/replicationcontroller/documentation.md

@@ -0,0 +1,40 @@
+[comment]: <> (Code generated by mdatagen. DO NOT EDIT.)
+
+# k8s/replicationcontroller
+
+**Parent Component:** k8s_cluster
+
+## Default Metrics
+
+The following metrics are emitted by default. Each of them can be disabled by applying the following configuration:
+
+```yaml
+metrics:
+ <metric_name>:
+ enabled: false
+```
+
+### k8s.replication_controller.available
+
+Total number of available pods (ready for at least minReadySeconds) targeted by this replication_controller
+
+| Unit | Metric Type | Value Type |
+| ---- | ----------- | ---------- |
+| 1 | Gauge | Int |
+
+### k8s.replication_controller.desired
+
+Number of desired pods in this replication_controller
+
+| Unit | Metric Type | Value Type |
+| ---- | ----------- | ---------- |
+| 1 | Gauge | Int |
+
+## Resource Attributes
+
+| Name | Description | Values | Enabled |
+| ---- | ----------- | ------ | ------- |
+| k8s.namespace.name | The k8s namespace name. | Any Str | true |
+| k8s.replicationcontroller.name | The k8s replicationcontroller name. | Any Str | true |
+| k8s.replicationcontroller.uid | The k8s replicationcontroller uid. | Any Str | true |
+| opencensus.resourcetype | The OpenCensus resource type. | Any Str | true |