PVC-backed volumes are not collected when using k8s.volume.type #45510
Description
Component(s)
receiver/kubeletstats
What happened?
Description
After enabling the k8s.volume.type configuration in the kubeletstats receiver, volume information is collected for configMap, secret, and emptyDir volumes, but PVC-backed volumes are missing.
Steps to Reproduce
Expected Result
k8s.volume.type: Str(PersistentVolumeClaim)
Actual Result
Resource attributes:
-> k8s.pod.uid: Str(ad4d0463-d992-448c-a66e-4a0a9b3ea37c)
-> k8s.pod.name: Str(otel-agent-collector-5rlq7)
-> k8s.namespace.name: Str(opentelemetry)
-> k8s.volume.name: Str(otc-internal)
-> k8s.volume.type: Str(configMap)
-> k8s.cluster.name: Str(aks-cillium-metrics-cluster)
-> host.name: Str(otel-agent-collector-5rlq7)
Collector version
0.140.1
Environment information
Environment
We have verified this behavior on both Gardener-managed Kubernetes clusters and AKS clusters, and PVC-backed volume information is missing in both cases.
The collector is granted get permissions on nodes/stats, nodes/proxy, and nodes/metrics resources in the core API group.
OpenTelemetry Collector configuration
apiVersion: opentelemetry.io/v1beta1
kind: OpenTelemetryCollector
metadata:
name: otel-agent
namespace: opentelemetry
spec:
mode: daemonset
serviceAccount: otel-agent
hostNetwork: false
resources:
requests:
cpu: 100m
memory: 128Mi
limits:
cpu: 500m
memory: 512Mi
env:
- name: GOMEMLIMIT
value: "410MiB"
- name: K8S_NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
config:
kubeletstats:
collection_interval: 20s
auth_type: "serviceAccount"
endpoint: "https://${env:K8S_NODE_NAME}:10250"
node: '${env:K8S_NODE_NAME}'
insecure_skip_verify: true
extra_metadata_labels:
- k8s.volume.type
k8s_api_config:
auth_type: serviceAccount
metric_groups: [node, pod, container, volume]
metrics:
k8s.pod.volume.usage:
enabled: true
processors:
memory_limiter:
check_interval: 1s
limit_percentage: 85
spike_limit_percentage: 15
resourcedetection:
detectors: [env, system, eks, aks, ec2, azure, gcp]
timeout: 2s
override: false
resource/cluster_id:
attributes:
- key: k8s.cluster.name
value: "aks-cillium-metrics-cluster"
action: upsert
batch:
send_batch_size: 10000
send_batch_max_size: 10000
timeout: 5s
exporters:
debug:
verbosity: detailed
otlphttp:
endpoint: https://xxx.com
service:
pipelines:
metrics:
receivers: [kubeletstats]
processors: [memory_limiter, resource/cluster_id, resourcedetection, batch]
exporters: [otlphttp, debug]Log output
Additional context
No response
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