Struct k8s_openapi::api::admissionregistration::v1::Validation
source · pub struct Validation {
pub expression: String,
pub message: Option<String>,
pub message_expression: Option<String>,
pub reason: Option<String>,
}
Expand description
Validation specifies the CEL expression which is used to apply the validation.
Fields§
§expression: String
Expression represents the expression which will be evaluated by CEL. ref: https://github.com/google/cel-spec CEL expressions have access to the contents of the API request/response, 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. Accessible property names are escaped according to the following rules when accessed in the expression: - ‘’ escapes to ‘underscores’ - ‘.’ escapes to ‘dot’ - ‘-’ escapes to ‘dash’ - ‘/’ escapes to ‘slash’ - Property names that exactly match a CEL RESERVED keyword escape to ‘{keyword}__’. The keywords are:
“true”, “false”, “null”, “in”, “as”, “break”, “const”, “continue”, “else”, “for”, “function”, “if”,
“import”, “let”, “loop”, “package”, “namespace”, “return”.
Examples:
- Expression accessing a property named “namespace”: {“Expression”: “object.namespace > 0”}
- Expression accessing a property named “x-prop”: {“Expression”: “object.x__dash__prop > 0”}
- Expression accessing a property named “redact__d”: {“Expression”: “object.redact__underscores__d > 0”}
Equality on arrays with list type of ‘set’ or ‘map’ ignores element order, i.e. [1, 2] == [2, 1]. Concatenation on arrays with x-kubernetes-list-type use the semantics of the list type:
- ‘set’:
X + Y
performs a union where the array positions of all elements inX
are preserved and non-intersecting elements inY
are appended, retaining their partial order. - ‘map’:
X + Y
performs a merge where the array positions of all keys inX
are preserved but the values are overwritten by values inY
when the key sets ofX
andY
intersect. Elements inY
with non-intersecting keys are appended, retaining their partial order. Required.
message: Option<String>
Message represents the message displayed when validation fails. The message is required if the Expression contains line breaks. The message must not contain line breaks. If unset, the message is “failed rule: {Rule}”. e.g. “must be a URL with the host matching spec.host” If the Expression contains line breaks. Message is required. The message must not contain line breaks. If unset, the message is “failed Expression: {Expression}”.
message_expression: Option<String>
messageExpression declares a CEL expression that evaluates to the validation failure message that is returned when this rule fails. Since messageExpression is used as a failure message, it must evaluate to a string. If both message and messageExpression are present on a validation, then messageExpression will be used if validation fails. If messageExpression results in a runtime error, the runtime error is logged, and the validation failure message is produced as if the messageExpression field were unset. If messageExpression evaluates to an empty string, a string with only spaces, or a string that contains line breaks, then the validation failure message will also be produced as if the messageExpression field were unset, and the fact that messageExpression produced an empty string/string with only spaces/string with line breaks will be logged. messageExpression has access to all the same variables as the expression
except for ‘authorizer’ and ‘authorizer.requestResource’. Example: “object.x must be less than max (”+string(params.max)+“)”
reason: Option<String>
Reason represents a machine-readable description of why this validation failed. If this is the first validation in the list to fail, this reason, as well as the corresponding HTTP response code, are used in the HTTP response to the client. The currently supported reasons are: “Unauthorized”, “Forbidden”, “Invalid”, “RequestEntityTooLarge”. If not set, StatusReasonInvalid is used in the response to the client.
Trait Implementations§
source§impl Clone for Validation
impl Clone for Validation
source§fn clone(&self) -> Validation
fn clone(&self) -> Validation
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for Validation
impl Debug for Validation
source§impl DeepMerge for Validation
impl DeepMerge for Validation
source§fn merge_from(&mut self, other: Self)
fn merge_from(&mut self, other: Self)
other
into self
.source§impl Default for Validation
impl Default for Validation
source§fn default() -> Validation
fn default() -> Validation
source§impl<'de> Deserialize<'de> for Validation
impl<'de> Deserialize<'de> for Validation
source§fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
D: Deserializer<'de>,
source§impl PartialEq for Validation
impl PartialEq for Validation
source§impl Serialize for Validation
impl Serialize for Validation
impl StructuralPartialEq for Validation
Auto Trait Implementations§
impl Freeze for Validation
impl RefUnwindSafe for Validation
impl Send for Validation
impl Sync for Validation
impl Unpin for Validation
impl UnwindSafe for Validation
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)