public static Builder builder(CephFSVolumeSourcePatchArgs defaults) {
        return new Builder(defaults);
    }
@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/inputs/CephFSVolumeSourcePatchArgs.java