Alertmanager.spec.initContainers[].securityContext.capabilities.drop.spec.configMaps

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