Struct JailerBuilder

pub struct JailerBuilder<'j> { /* private fields */ }

Builder for Jailer instances.

Implementations

impl<'j> JailerBuilder<'j>

pub fn gid(self, gid: u32) -> Self

GID the jailer switches to as it execs the target binary.

pub fn uid(self, uid: u32) -> Self

UID the jailer switches to as it execs the target binary.

pub fn numa_node(self, numa_node: i32) -> Self

NumaNode represents the NUMA node the process gets assigned to.

pub fn exec_file<P>(self, exec_file: P) -> Self

where P: Into<Cow<'j, Path>>,

The path to the Firecracker binary that will be exec-ed by the jailer.

The user can provide a path to any binary, but the interaction with the jailer is mostly Firecracker specific.

pub fn jailer_binary<P>(self, jailer_binary: P) -> Self

where P: Into<Cow<'j, Path>>,

Specifies the jailer binary to be used for setting up the Firecracker VM jail.

If the value contains no path separators, it will use the PATH environment variable to get the absolute path of the binary. If the value contains path separators, the value will be used directly to exec the jailer. This follows the same conventions as Golang’s os/exec.Command. If not specified it defaults to “jailer”.

pub fn chroot_base_dir<P>(self, chroot_base_dir: P) -> Self

where P: Into<Cow<'j, Path>>,

The base folder where chroot jails are built.

The default is /srv/jailer.

pub fn mode(self, mode: JailerMode<'j>) -> Self

The mode of the jailer process.

pub fn build(self) -> Builder<'j>

Build the Jailer instance.

Returns the main configuration builder with new jailer.

Trait Implementations

impl<'j> Debug for JailerBuilder<'j>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.