in pkg/controller/broker/broker_controller.go [543:549]
func getContainerSecurityContext(broker *rocketmqv1alpha1.Broker) *corev1.SecurityContext {
var securityContext = corev1.SecurityContext{}
if broker.Spec.ContainerSecurityContext != nil {
securityContext = *broker.Spec.ContainerSecurityContext
}
return &securityContext
}