## DeviceRequest

# Struct DeviceRequest

Source

    pub struct DeviceRequest {
        pub exactly: Option<ExactDeviceRequest>,
        pub first_available: Option<Vec<DeviceSubRequest>>,
        pub name: String,
    }

Expand description

DeviceRequest is a request for devices required for a claim. This is typically a request for a single resource like a device, but can also ask for several identical devices. With FirstAvailable it is also possible to provide a prioritized list of requests.

## Fields§

§`exactly: Option<ExactDeviceRequest>`

Exactly specifies the details for a single request that must be met exactly for the request to be satisfied.

One of Exactly or FirstAvailable must be set.

§`first_available: Option<Vec<DeviceSubRequest>>`

FirstAvailable contains subrequests, of which exactly one will be selected by the scheduler. It tries to satisfy them in the order in which they are listed here. So if there are two entries in the list, the scheduler will only check the second one if it determines that the first one can not be used.

DRA does not yet implement scoring, so the scheduler will select the first set of devices that satisfies all the requests in the claim. And if the requirements can be satisfied on more than one node, other scheduling features will determine which node is chosen. This means that the set of devices allocated to a claim might not be the optimal set available to the cluster. Scoring will be implemented later.

§`name: String`

Name can be used to reference this request in a pod.spec.containers[].resources.claims entry and in a constraint of the claim.

References using the name in the DeviceRequest will uniquely identify a request when the Exactly field is set. When the FirstAvailable field is set, a reference to the name of the DeviceRequest will match whatever subrequest is chosen by the scheduler.

Must be a DNS label.

## Trait Implementations§

Source§

### impl Clone for DeviceRequest

Source§

#### fn clone(&self) -> DeviceRequest

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from `source`. Read more
Source§

### impl Debug for DeviceRequest

Source§

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

Formats the value using the given formatter. Read more
Source§

### impl DeepMerge for DeviceRequest

Source§

#### fn merge_from(&mut self, other: Self)

Merge `other` into `self`.
Source§

### impl Default for DeviceRequest

Source§

#### fn default() -> DeviceRequest

Returns the “default value” for a type. Read more
Source§

### impl<'de> Deserialize<'de> for DeviceRequest

Source§

#### fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
Source§

### impl PartialEq for DeviceRequest

Source§

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

Tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · Source§

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

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

### impl Serialize for DeviceRequest

Source§

#### fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more
Source§

### impl StructuralPartialEq for DeviceRequest

## Auto Trait Implementations§

§

### impl Freeze for DeviceRequest

§

### impl RefUnwindSafe for DeviceRequest

§

### impl Send for DeviceRequest

§

### impl Sync for DeviceRequest

§

### impl Unpin for DeviceRequest

§

### impl UnwindSafe for DeviceRequest

## Blanket Implementations§

Source§

### impl<T> Any for T
where T: 'static + ?Sized,

Source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
Source§

### impl<T> Borrow<T> for T
where T: ?Sized,

Source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

### impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

### impl<T> CloneToUninit for T
where T: Clone,

Source§

#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
Source§

### impl<T> From<T> for T

Source§

#### fn from(t: T) -> T

Returns the argument unchanged.

Source§

### impl<T, U> Into<U> for T
where U: From<T>,

Source§

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

Source§

### impl<T> ToOwned for T
where T: Clone,

Source§

#### type Owned = T

The resulting type after obtaining ownership.
Source§

#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

### impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

#### type Error = Infallible

The type returned in the event of a conversion error.
Source§

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

### impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,