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  1. OpenShift Workloads
  2. WRKLDS-1264

implement ValidatingAdmissionPolicy that restricts NoExecute taint toleration based on RBAC

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      As discussed in 

      https://redhat-internal.slack.com/archives/CC3CZCQHM/p1714068850544919?thread_ts=1713794008.195589&cid=CC3CZCQHM

      Something like 

      rules: - apiGroups: [""] resources: ["node-role.kubernetes.io/control-plane"] verbs: ["NoExecute"] - apiGroups: [""] resources: ["node.kubernetes.io/not-ready"] verbs: ["NoExecute"] - apiGroups: [""] resources: ["node.kubernetes.io/unreachable"] verbs: ["NoExecute"] [...]
      not using the composite variables, just the expression
       

      • expression: "object.spec.tolerations.all(toleration, ( toleration.effect != 'NoExecute' || (toleration.effect == 'NoExecute' && (auhorizer.serviceAccount(object.metadata.namespace, object.spec.serviceAccountName).group('').resource(toleration.key).namespace(object.metadata.namespace).check(toleration.effect).allowed()))))"

      And rovide it as a static file through https://github.com/openshift/cluster-kube-scheduler-operator/blob/master/pkg/operator/starter.go#L108-L123

            rh-ee-lseveroa Lucas Severo Alves (Inactive)
            jchaloup@redhat.com Jan Chaloupka
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