Prometheus.spec.ruleNamespaceSelector.matchExpressions[].values.spec.configMaps

configMaps defines a list of ConfigMaps in the same namespace as the Prometheus object, which shall be mounted into the Prometheus Pods. Each ConfigMap is added to the StatefulSet definition as a volume named `configmap-<configmap-name>`. The ConfigMaps are mounted into /etc/prometheus/configmaps/<configmap-name> in the 'prometheus' container.