kube_deployment_labels metric missing DEPLOYMENT_LABEL labels

[cwrau]

What happened:

After updating to kube-state-metrics v2.0.0 the extra labels, as described in https://github.com/kubernetes/kube-state-metrics/blob/release-2.0/docs/deployment-metrics.md, are missing. Meaning only deployment and namespace labels are set.

What you expected to happen:

As they are in the above mentioned documentation and also not in the deprecation notice, I expected them to still exist

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

Run kube-state-metrics and search for kube_deployment_labels in its metric endpoint

Anything else we need to know?:

Environment:

• kube-state-metrics version: v2.0.0
• Kubernetes version (use kubectl version): v1.18.0
• Cloud provider or hardware configuration: Does not apply
• Other info:

[lilic]

Hey, it's not a bug but a new future as mentioned in the release notes these are now under an allow-list.

--metric-labels-allowlist string Comma-separated list of additional Kubernetes label keys that will be used in the resource' labels metric. By default the metric contains only name and namespace labels. To include additional labels provide a list of resource names in their plural form and Kubernetes label keys you would like to allow for them (Example: '=namespaces=[k8s-label-1,k8s-label-n,...],pods=[app],...)'. A single '*' can be provided per resource instead to allow any labels, but that has severe performance implications (Example: '=pods=[*]').

Please suggest a place where we can put this as we had few people ask about it, thank you!

[cwrau]

Huh, interesting, I must have glossed over that during my reading of https://kubernetes.io/blog/2021/04/13/kube-state-metrics-v-2-0/

Although now I can clearly see that in the post 😅

Sorry for the wrong(?) bug report and thanks for the info 👍️

In case anyone is needing the same labels as us, we needed to add the following argument to kube-state-metrics;

--metric-labels-allowlist=pods=[app.kubernetes.io/name,app.kubernetes.io/component,app.kubernetes.io/instance],deployments=[app.kubernetes.io/name,app.kubernetes.io/component,app.kubernetes.io/instance]

[ycyin]

It work for me of add --metric-labels-allowlist=pods=[app] in v2.2.0, no need to add it under v2.x.x. app is my pod label name,you can set *

[paltaa]

If you want all the metrics to have the pod labels defined in --metric-labels-allowlist=pods=[]:

Add t his relabel configs:

      relabelConfigs:
        - action: labelmap
          regex: __meta_kubernetes_pod_label_(.+)