Enum MountAccess 

pub enum MountAccess {
    Ro,
    Cow,
    Rw,
}

How a container sees an attached directory.

Variants

Ro

The container can read the directory but not change it.

Cow

The container writes to a private copy-on-write overlay; the host directory never changes.

Rw

The container writes straight through to the host directory.

Implementations

impl MountAccess

pub const ALL: [MountAccess; 3]

pub fn label(self) -> &'static str

pub fn without_overlay(self) -> MountAccess

The mode this attachment takes where the host filesystem cannot carry a copy-on-write overlay. Read-only is the substitute, because the alternative would let the container write through to the host directory the user asked to keep unchanged.

This is the one rule for an unavailable overlay: the wizard offers the same modes Self::offered lists, and the runtime downgrades a stored mount the same way.

pub fn offered(overlay_available: bool) -> Vec<MountAccess>

The modes an attachment may be given, given whether the host filesystem can carry the copy-on-write overlay.

Trait Implementations

impl Clone for MountAccess

fn clone(&self) -> MountAccess

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for MountAccess

impl Debug for MountAccess

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MountAccess

fn deserialize<__D>( __deserializer: __D, ) -> Result<MountAccess, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MountAccess

impl PartialEq for MountAccess

fn eq(&self, other: &MountAccess) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for MountAccess

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MountAccess