@CustomType.Setter
        public Builder secretRef(@Nullable SecretReference secretRef) {

            this.secretRef = secretRef;
            return this;
        }
@return user is Optional: User is the rados user name, default is admin More info: https://examples.k8s.io/volumes/cephfs/README.md#how-to-use-it
sdk/java/src/main/java/com/pulumi/kubernetes/core/v1/outputs/CephFSPersistentVolumeSource.java