Struct FsBuilder 

pub struct FsBuilder { /* private fields */ }

Builder for filesystem configuration.

Examples

Root filesystem only:

VmBuilder::new()
    .fs(|fs| fs.root("/path/to/rootfs"));

Root filesystem with additional named mounts:

VmBuilder::new()
    .fs(|fs| fs.root("/path/to/rootfs"))
    .fs(|fs| fs.tag("data").shm_size(1 << 30).path("/host/data"))
    .fs(|fs| fs.tag("logs").path("/host/logs"));

Custom filesystem backend:

VmBuilder::new()
    .fs(|fs| fs.tag("myfs").custom(Box::new(my_backend)));

Implementations

impl FsBuilder

pub fn new() -> Self

Create a new filesystem builder.

pub fn root(self, path: impl AsRef<Path>) -> Self

Set the root filesystem path.

Uses the virtiofs tag /dev/root, matching the kernel’s expected root device name.

pub fn tag(self, tag: &str) -> Self

Set the tag for the next mount.

pub fn path(self, path: impl AsRef<Path>) -> Self

Set the path for a filesystem mount.

If tag() was called previously, uses that tag; otherwise generates one.

pub fn shm_size(self, size: usize) -> Self

Set the DAX shared memory size for the next mount.

pub fn custom(self, backend: Box<dyn DynFileSystem + Send + Sync>) -> Self

Use a custom filesystem backend.

Trait Implementations

impl Default for FsBuilder

fn default() -> Self

Returns the “default value” for a type.