## ApplyConfiguration

# Struct ApplyConfiguration

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    pub struct ApplyConfiguration {
        pub expression: Option<String>,
    }

Expand description

ApplyConfiguration defines the desired configuration values of an object.

## Fields§

§`expression: Option<String>`

expression will be evaluated by CEL to create an apply configuration. ref: https://github.com/google/cel-spec

Apply configurations are declared in CEL using object initialization. For example, this CEL expression returns an apply configuration to set a single field:

Object{ spec: Object.spec{ serviceAccountName: “example” } }

Apply configurations may not modify atomic structs, maps or arrays due to the risk of accidental deletion of values not included in the apply configuration.

CEL expressions have access to the object types needed to create apply configurations:

- ‘Object’ - CEL type of the resource object. - ‘Object.<fieldName>’ - CEL type of object field (such as ‘Object.spec’) - ’Object.<fieldName1>.<fieldName2>…<fieldNameN>` - CEL type of nested field (such as ‘Object.spec.containers’)

CEL expressions have access to the contents of the API request, organized into CEL variables as well as some other useful variables:

- ‘object’ - The object from the incoming request. The value is null for DELETE requests. - ‘oldObject’ - The existing object. The value is null for CREATE requests. - ‘request’ - Attributes of the API request([ref](/pkg/apis/admission/types.go#AdmissionRequest)). - ‘params’ - Parameter resource referred to by the policy binding being evaluated. Only populated if the policy has a ParamKind. - ‘namespaceObject’ - The namespace object that the incoming object belongs to. The value is null for cluster-scoped resources. - ‘variables’ - Map of composited variables, from its name to its lazily evaluated value. For example, a variable named ‘foo’ can be accessed as ‘variables.foo’.
- ‘authorizer’ - A CEL Authorizer. May be used to perform authorization checks for the principal (user or service account) of the request. See https://pkg.go.dev/k8s.io/apiserver/pkg/cel/library#Authz
- ‘authorizer.requestResource’ - A CEL ResourceCheck constructed from the ‘authorizer’ and configured with the request resource.

The `apiVersion`, `kind`, `metadata.name` and `metadata.generateName` are always accessible from the root of the object. No other metadata properties are accessible.

Only property names of the form `\[a-zA-Z_.-/\]\[a-zA-Z0-9_.-/\]*` are accessible. Required.

## Trait Implementations§

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### impl Clone for ApplyConfiguration

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

Returns a duplicate of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl Debug for ApplyConfiguration

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

Formats the value using the given formatter. Read more
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### impl DeepMerge for ApplyConfiguration

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

Merge `other` into `self`.
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### impl Default for ApplyConfiguration

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#### fn default() -> ApplyConfiguration

Returns the “default value” for a type. Read more
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### impl<'de> Deserialize<'de> for ApplyConfiguration

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

Deserialize this value from the given Serde deserializer. Read more
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### impl PartialEq for ApplyConfiguration

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

Tests for `self` and `other` values to be equal, and is used by `==`.
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#### fn ne(&self, other: &Rhs) -> bool

Tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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### impl Serialize for ApplyConfiguration

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

Serialize this value into the given Serde serializer. Read more
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### impl StructuralPartialEq for ApplyConfiguration

## Auto Trait Implementations§

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### impl Freeze for ApplyConfiguration

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### impl RefUnwindSafe for ApplyConfiguration

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### impl Send for ApplyConfiguration

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### impl Sync for ApplyConfiguration

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### impl Unpin for ApplyConfiguration

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### impl UnwindSafe for ApplyConfiguration

## Blanket Implementations§

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

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

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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### impl<T> CloneToUninit for T
where T: Clone,

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

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

Returns the argument unchanged.

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

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

Calls `U::from(self)`.

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

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

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,