This directory contains configuration files for enabling kube-state-metrics to report metrics for AppWrapper.

The file appwrapper-ksm-cm.yaml defines a configuration map that can be volume-mounted into the kube-state-metrics pod and passed via the --custom-resource-state-config-file command line argument. For development of the AppWrapper metrics, you may want to add --custom-resource-state-only=true to the command line arguments to suppress generation of metrics for built-in types.

The file appwrapper-ksm-rbac.yaml defines a clusterrole and clusterrolebinding that add the RBACs needed to collect AppWrapper metrics to the kube-state-metrics service account. Alternatively, you could edit the existing kube-state-metrics clusterrole to add these permissions.

The changes to the kube-state-metrics deployment are roughly as shown below:

  ...
    spec:
      containers:
      - args:
        - --custom-resource-state-config-file=/appwrapper_ksm.yaml
  ...
        volumeMounts:
        - mountPath: /appwrapper_ksm.yaml
          name: appwrapper-ksm
          readOnly: true
          subPath: appwrapper_ksm.yaml
  ...
      volumes:
      - configMap:
          defaultMode: 420
          name: appwrapper-ksm
        name: appwrapper-ksm