ObjectReference

Struct ObjectReference 

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pub struct ObjectReference {
    pub kind: Option<String>,
    pub namespace: Option<String>,
    pub name: Option<String>,
    pub uid: Option<String>,
    pub api_version: Option<String>,
    pub resource_version: Option<String>,
    pub field_path: Option<String>,
}
Expand description

§ObjectReference contains enough information to let you inspect or modify the referred object.

New uses of this type are discouraged because of difficulty describing its usage when embedded in APIs.

  1. Ignored fields. It includes many fields which are not generally honored. For instance, ResourceVersion and FieldPath are both very rarely valid in actual usage.
  2. Invalid usage help. It is impossible to add specific help for individual usage. In most embedded usages, there are particular restrictions like, “must refer only to types A and B” or “UID not honored” or “name must be restricted”. Those cannot be well described when embedded.
  3. Inconsistent validation. Because the usages are different, the validation rules are different by usage, which makes it hard for users to predict what will happen.
  4. The fields are both imprecise and overly precise. Kind is not a precise mapping to a URL. This can produce ambiguity during interpretation and require a REST mapping. In most cases, the dependency is on the group,resource tuple and the version of the actual struct is irrelevant.
  5. We cannot easily change it. Because this type is embedded in many locations, updates to this type will affect numerous schemas. Don’t make new APIs embed an underspecified API type they do not control.

Instead of using this type, create a locally provided and used type that is well-focused on your reference. For example, ServiceReferences for admission registration: https://github.com/kubernetes/api/blob/release-1.17/admissionregistration/v1/types.go#L533 . +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object +structType=atomic

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§kind: Option<String>§namespace: Option<String>§name: Option<String>§uid: Option<String>§api_version: Option<String>

API version of the referent. +optional

§resource_version: Option<String>

Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency +optional

§field_path: Option<String>

If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: “spec.containers{name}” (where “name” refers to the name of the container that triggered the event) or if no container name is specified “spec.containers[2]” (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object. TODO: this design is not final and this field is subject to change in the future. +optional

Implementations§

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impl ObjectReference

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pub fn kind(&self) -> &str

Returns the value of kind, or the default value if kind is unset.

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pub fn namespace(&self) -> &str

Returns the value of namespace, or the default value if namespace is unset.

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pub fn name(&self) -> &str

Returns the value of name, or the default value if name is unset.

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pub fn uid(&self) -> &str

Returns the value of uid, or the default value if uid is unset.

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pub fn api_version(&self) -> &str

Returns the value of api_version, or the default value if api_version is unset.

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pub fn resource_version(&self) -> &str

Returns the value of resource_version, or the default value if resource_version is unset.

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pub fn field_path(&self) -> &str

Returns the value of field_path, or the default value if field_path is unset.

Trait Implementations§

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impl Clone for ObjectReference

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fn clone(&self) -> ObjectReference

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 ObjectReference

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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 Default for ObjectReference

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl Hash for ObjectReference

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Message for ObjectReference

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fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.
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fn clear(&mut self)

Clears the message, resetting all fields to their default.
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fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message to a buffer. Read more
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fn encode_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message to a newly allocated buffer.
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fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message with a length-delimiter to a buffer. Read more
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fn encode_length_delimited_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.
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fn decode(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes an instance of the message from a buffer. Read more
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fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes a length-delimited instance of the message from the buffer.
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fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self. Read more
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fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.
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impl PartialEq for ObjectReference

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fn eq(&self, other: &ObjectReference) -> 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 Eq for ObjectReference

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impl StructuralPartialEq for ObjectReference

Auto Trait Implementations§

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.