kube_pod_container_resource_requests metrics not exported

[yosshi825]

Is this a BUG REPORT or FEATURE REQUEST?:
/kind bug

What happened:
The Pod Metrics documentation has a description of kube_pod_container_resource_requests, but kube_pod_container_resource_requests is not export when using v2.0.0-alpha.1.

• kube-state-metrics:v2.0.0-alpha.1

  # HELP kube_pod_container_resource_requests_cpu_cores The number of CPU cores requested by a container.
  # TYPE kube_pod_container_resource_requests_cpu_cores gauge
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kube-controller-manager-kind-control-plane",container="kube-controller-manager"} 0.2
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="coredns-f9fd979d6-hftxs",container="coredns"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kindnet-krdmd",container="kindnet-cni"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kindnet-lsxzg",container="kindnet-cni"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kube-scheduler-kind-control-plane",container="kube-scheduler"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kindnet-zbj7v",container="kindnet-cni"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="coredns-f9fd979d6-5lp78",container="coredns"} 0.1
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kube-apiserver-kind-control-plane",container="kube-apiserver"} 0.25
  kube_pod_container_resource_requests_cpu_cores{namespace="kube-system",pod="kindnet-w95fr",container="kindnet-cni"} 0.1
  # HELP kube_pod_container_resource_requests_memory_bytes Bytes of memory requested by a container.
  # TYPE kube_pod_container_resource_requests_memory_bytes gauge
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="kindnet-w95fr",container="kindnet-cni"} 5.24288e+07
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="coredns-f9fd979d6-hftxs",container="coredns"} 7.340032e+07
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="kindnet-krdmd",container="kindnet-cni"} 5.24288e+07
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="kindnet-lsxzg",container="kindnet-cni"} 5.24288e+07
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="kindnet-zbj7v",container="kindnet-cni"} 5.24288e+07
  kube_pod_container_resource_requests_memory_bytes{namespace="kube-system",pod="coredns-f9fd979d6-5lp78",container="coredns"} 7.340032e+07
  # HELP kube_pod_container_resource_requests_storage_bytes Bytes of storage requested by a container.
  # TYPE kube_pod_container_resource_requests_storage_bytes gauge
  # HELP kube_pod_container_resource_requests_ephemeral_storage_bytes Bytes of ephemeral-storage requested by a container.
  # TYPE kube_pod_container_resource_requests_ephemeral_storage_bytes gauge
  -# HELP kube_pod_container_resource_requests The number of requested request resource by a container.
  -# TYPE kube_pod_container_resource_requests gauge
  # HELP kube_pod_container_resource_limits_cpu_cores The number of CPU cores re

• kube-state-metrics:v1.9.7
  Using v1.9.7 in same environment exportskube_pod_container_resource_requests.

  # HELP kube_pod_container_resource_requests The number of requested request resource by a container.
  # TYPE kube_pod_container_resource_requests gauge
  kube_pod_container_resource_requests{namespace="kube-system",pod="coredns-f9fd979d6-hftxs",container="coredns",node="kind-control-plane",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="coredns-f9fd979d6-hftxs",container="coredns",node="kind-control-plane",resource="memory",unit="byte"} 7.340032e+07
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-lsxzg",container="kindnet-cni",node="kind-worker3",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-lsxzg",container="kindnet-cni",node="kind-worker3",resource="memory",unit="byte"} 5.24288e+07
  kube_pod_container_resource_requests{namespace="kube-system",pod="kube-scheduler-kind-control-plane",container="kube-scheduler",node="kind-control-plane",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="coredns-f9fd979d6-5lp78",container="coredns",node="kind-control-plane",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="coredns-f9fd979d6-5lp78",container="coredns",node="kind-control-plane",resource="memory",unit="byte"} 7.340032e+07
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-zbj7v",container="kindnet-cni",node="kind-worker",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-zbj7v",container="kindnet-cni",node="kind-worker",resource="memory",unit="byte"} 5.24288e+07
  kube_pod_container_resource_requests{namespace="kube-system",pod="kube-controller-manager-kind-control-plane",container="kube-controller-manager",node="kind-control-plane",resource="cpu",unit="core"} 0.2
  kube_pod_container_resource_requests{namespace="kube-system",pod="kube-apiserver-kind-control-plane",container="kube-apiserver",node="kind-control-plane",resource="cpu",unit="core"} 0.25
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-w95fr",container="kindnet-cni",node="kind-control-plane",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-w95fr",container="kindnet-cni",node="kind-control-plane",resource="memory",unit="byte"} 5.24288e+07
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-krdmd",container="kindnet-cni",node="kind-worker2",resource="cpu",unit="core"} 0.1
  kube_pod_container_resource_requests{namespace="kube-system",pod="kindnet-krdmd",container="kindnet-cni",node="kind-worker2",resource="memory",unit="byte"} 5.24288e+07
  

What you expected to happen:
kube_pod_container_resource_requests is exported when using v2.0.0-alpha.1.

How to reproduce it (as minimally and precisely as possible):

1. Create a cluster using kind.

   kind: Cluster
   apiVersion: kind.x-k8s.io/v1alpha4
   nodes:
   - role: control-plane
     image: kindest/node:v1.19.1
   - role: worker
     image: kindest/node:v1.19.1
   - role: worker
     image: kindest/node:v1.19.1
   - role: worker
     image: kindest/node:v1.19.1

2. install kube-state-metrics from https://github.com/kubernetes/kube-state-metrics/tree/master/examples/standard.

Anything else we need to know?:
When we upgraded to release-1.9, we changed the metric used in grafana's dashboard from kube_pod_container_resource_requests_[cpu_cores|memory_bytes] to kube_pod_container_resource_requests.

• release-1.9 pod-metrics.md

  Metric name	Status
  kube_pod_container_resource_requests_cpu_cores	DEPRECATED
  kube_pod_container_resource_requests	STABLE
  kube_pod_container_resource_requests_memory_bytes	DEPRECATED

ref:#1004, #1168

Environment:

• Kubernetes version (use kubectl version): v1.19.3
• Kube-state-metrics image version: v2.0.0-alpha.1

[lilic]

Thanks for the report, indeed this is a mistake, will look into it! Nice catch!

[lilic]

@yosshi825 hello, can you recheck if kube_pod_container_resource_requests is exported for you now, I can see it in latest 2.0.0-beta version. Thanks!

[lilic]

I can see this metric so closing for now, if you cannot see it in newer versions feel free to reopen or open a new issue, thanks!

[muhammad-asn]

Thank you for this info