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rebase: update kubernetes to 1.30

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updating kubernetes to 1.30 release

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna
2024-05-15 08:54:18 +02:00
committed by mergify[bot]
parent 62ddcf715b
commit e727bd351e
747 changed files with 73809 additions and 10436 deletions
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574
vendor/k8s.io/api/admissionregistration/v1/generated.proto generated vendored
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@ -28,6 +28,56 @@ import "k8s.io/apimachinery/pkg/runtime/schema/generated.proto";
// Package-wide variables from generator "generated".
option go_package = "k8s.io/api/admissionregistration/v1";
// AuditAnnotation describes how to produce an audit annotation for an API request.
message AuditAnnotation {
// key specifies the audit annotation key. The audit annotation keys of
// a ValidatingAdmissionPolicy must be unique. The key must be a qualified
// name ([A-Za-z0-9][-A-Za-z0-9_.]*) no more than 63 bytes in length.
//
// The key is combined with the resource name of the
// ValidatingAdmissionPolicy to construct an audit annotation key:
// "{ValidatingAdmissionPolicy name}/{key}".
//
// If an admission webhook uses the same resource name as this ValidatingAdmissionPolicy
// and the same audit annotation key, the annotation key will be identical.
// In this case, the first annotation written with the key will be included
// in the audit event and all subsequent annotations with the same key
// will be discarded.
//
// Required.
optional string key = 1;
// valueExpression represents the expression which is evaluated by CEL to
// produce an audit annotation value. The expression must evaluate to either
// a string or null value. If the expression evaluates to a string, the
// audit annotation is included with the string value. If the expression
// evaluates to null or empty string the audit annotation will be omitted.
// The valueExpression may be no longer than 5kb in length.
// If the result of the valueExpression is more than 10kb in length, it
// will be truncated to 10kb.
//
// If multiple ValidatingAdmissionPolicyBinding resources match an
// API request, then the valueExpression will be evaluated for
// each binding. All unique values produced by the valueExpressions
// will be joined together in a comma-separated list.
//
// Required.
optional string valueExpression = 2;
}
// ExpressionWarning is a warning information that targets a specific expression.
message ExpressionWarning {
// The path to the field that refers the expression.
// For example, the reference to the expression of the first item of
// validations is "spec.validations[0].expression"
optional string fieldRef = 2;
// The content of type checking information in a human-readable form.
// Each line of the warning contains the type that the expression is checked
// against, followed by the type check error from the compiler.
optional string warning = 3;
}
// MatchCondition represents a condition which must by fulfilled for a request to be sent to a webhook.
message MatchCondition {
// Name is an identifier for this match condition, used for strategic merging of MatchConditions,
@ -57,6 +107,101 @@ message MatchCondition {
optional string expression = 2;
}
// MatchResources decides whether to run the admission control policy on an object based
// on whether it meets the match criteria.
// The exclude rules take precedence over include rules (if a resource matches both, it is excluded)
// +structType=atomic
message MatchResources {
// NamespaceSelector decides whether to run the admission control policy on an object based
// on whether the namespace for that object matches the selector. If the
// object itself is a namespace, the matching is performed on
// object.metadata.labels. If the object is another cluster scoped resource,
// it never skips the policy.
//
// For example, to run the webhook on any objects whose namespace is not
// associated with "runlevel" of "0" or "1"; you will set the selector as
// follows:
// "namespaceSelector": {
// "matchExpressions": [
// {
// "key": "runlevel",
// "operator": "NotIn",
// "values": [
// "0",
// "1"
// ]
// }
// ]
// }
//
// If instead you want to only run the policy on any objects whose
// namespace is associated with the "environment" of "prod" or "staging";
// you will set the selector as follows:
// "namespaceSelector": {
// "matchExpressions": [
// {
// "key": "environment",
// "operator": "In",
// "values": [
// "prod",
// "staging"
// ]
// }
// ]
// }
//
// See
// https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
// for more examples of label selectors.
//
// Default to the empty LabelSelector, which matches everything.
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector namespaceSelector = 1;
// ObjectSelector decides whether to run the validation based on if the
// object has matching labels. objectSelector is evaluated against both
// the oldObject and newObject that would be sent to the cel validation, and
// is considered to match if either object matches the selector. A null
// object (oldObject in the case of create, or newObject in the case of
// delete) or an object that cannot have labels (like a
// DeploymentRollback or a PodProxyOptions object) is not considered to
// match.
// Use the object selector only if the webhook is opt-in, because end
// users may skip the admission webhook by setting the labels.
// Default to the empty LabelSelector, which matches everything.
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector objectSelector = 2;
// ResourceRules describes what operations on what resources/subresources the ValidatingAdmissionPolicy matches.
// The policy cares about an operation if it matches _any_ Rule.
// +listType=atomic
// +optional
repeated NamedRuleWithOperations resourceRules = 3;
// ExcludeResourceRules describes what operations on what resources/subresources the ValidatingAdmissionPolicy should not care about.
// The exclude rules take precedence over include rules (if a resource matches both, it is excluded)
// +listType=atomic
// +optional
repeated NamedRuleWithOperations excludeResourceRules = 4;
// matchPolicy defines how the "MatchResources" list is used to match incoming requests.
// Allowed values are "Exact" or "Equivalent".
//
// - Exact: match a request only if it exactly matches a specified rule.
// For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1,
// but "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`,
// a request to apps/v1beta1 or extensions/v1beta1 would not be sent to the ValidatingAdmissionPolicy.
//
// - Equivalent: match a request if modifies a resource listed in rules, even via another API group or version.
// For example, if deployments can be modified via apps/v1, apps/v1beta1, and extensions/v1beta1,
// and "rules" only included `apiGroups:["apps"], apiVersions:["v1"], resources: ["deployments"]`,
// a request to apps/v1beta1 or extensions/v1beta1 would be converted to apps/v1 and sent to the ValidatingAdmissionPolicy.
//
// Defaults to "Equivalent"
// +optional
optional string matchPolicy = 7;
}
// MutatingWebhook describes an admission webhook and the resources and operations it applies to.
message MutatingWebhook {
// The name of the admission webhook.
@ -76,6 +221,7 @@ message MutatingWebhook {
// from putting the cluster in a state which cannot be recovered from without completely
// disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called
// on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.
// +listType=atomic
repeated RuleWithOperations rules = 3;
// FailurePolicy defines how unrecognized errors from the admission endpoint are handled -
@ -183,6 +329,7 @@ message MutatingWebhook {
// If a persisted webhook configuration specifies allowed versions and does not
// include any versions known to the API Server, calls to the webhook will fail
// and be subject to the failure policy.
// +listType=atomic
repeated string admissionReviewVersions = 8;
// reinvocationPolicy indicates whether this webhook should be called multiple times as part of a single admission evaluation.
@ -215,13 +362,10 @@ message MutatingWebhook {
// - If failurePolicy=Fail, reject the request
// - If failurePolicy=Ignore, the error is ignored and the webhook is skipped
//
// This is a beta feature and managed by the AdmissionWebhookMatchConditions feature gate.
//
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
// +featureGate=AdmissionWebhookMatchConditions
// +optional
repeated MatchCondition matchConditions = 12;
}
@ -236,6 +380,8 @@ message MutatingWebhookConfiguration {
// +optional
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
repeated MutatingWebhook Webhooks = 2;
}
@ -250,6 +396,88 @@ message MutatingWebhookConfigurationList {
repeated MutatingWebhookConfiguration items = 2;
}
// NamedRuleWithOperations is a tuple of Operations and Resources with ResourceNames.
// +structType=atomic
message NamedRuleWithOperations {
// ResourceNames is an optional white list of names that the rule applies to. An empty set means that everything is allowed.
// +listType=atomic
// +optional
repeated string resourceNames = 1;
// RuleWithOperations is a tuple of Operations and Resources.
optional RuleWithOperations ruleWithOperations = 2;
}
// ParamKind is a tuple of Group Kind and Version.
// +structType=atomic
message ParamKind {
// APIVersion is the API group version the resources belong to.
// In format of "group/version".
// Required.
optional string apiVersion = 1;
// Kind is the API kind the resources belong to.
// Required.
optional string kind = 2;
}
// ParamRef describes how to locate the params to be used as input to
// expressions of rules applied by a policy binding.
// +structType=atomic
message ParamRef {
// name is the name of the resource being referenced.
//
// One of `name` or `selector` must be set, but `name` and `selector` are
// mutually exclusive properties. If one is set, the other must be unset.
//
// A single parameter used for all admission requests can be configured
// by setting the `name` field, leaving `selector` blank, and setting namespace
// if `paramKind` is namespace-scoped.
optional string name = 1;
// namespace is the namespace of the referenced resource. Allows limiting
// the search for params to a specific namespace. Applies to both `name` and
// `selector` fields.
//
// A per-namespace parameter may be used by specifying a namespace-scoped
// `paramKind` in the policy and leaving this field empty.
//
// - If `paramKind` is cluster-scoped, this field MUST be unset. Setting this
// field results in a configuration error.
//
// - If `paramKind` is namespace-scoped, the namespace of the object being
// evaluated for admission will be used when this field is left unset. Take
// care that if this is left empty the binding must not match any cluster-scoped
// resources, which will result in an error.
//
// +optional
optional string namespace = 2;
// selector can be used to match multiple param objects based on their labels.
// Supply selector: {} to match all resources of the ParamKind.
//
// If multiple params are found, they are all evaluated with the policy expressions
// and the results are ANDed together.
//
// One of `name` or `selector` must be set, but `name` and `selector` are
// mutually exclusive properties. If one is set, the other must be unset.
//
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 3;
// `parameterNotFoundAction` controls the behavior of the binding when the resource
// exists, and name or selector is valid, but there are no parameters
// matched by the binding. If the value is set to `Allow`, then no
// matched parameters will be treated as successful validation by the binding.
// If set to `Deny`, then no matched parameters will be subject to the
// `failurePolicy` of the policy.
//
// Allowed values are `Allow` or `Deny`
//
// Required
optional string parameterNotFoundAction = 4;
}
// Rule is a tuple of APIGroups, APIVersion, and Resources.It is recommended
// to make sure that all the tuple expansions are valid.
message Rule {
@ -333,6 +561,248 @@ message ServiceReference {
optional int32 port = 4;
}
// TypeChecking contains results of type checking the expressions in the
// ValidatingAdmissionPolicy
message TypeChecking {
// The type checking warnings for each expression.
// +optional
// +listType=atomic
repeated ExpressionWarning expressionWarnings = 1;
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// +genclient
// +genclient:nonNamespaced
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// +k8s:prerelease-lifecycle-gen:introduced=1.30
// ValidatingAdmissionPolicy describes the definition of an admission validation policy that accepts or rejects an object without changing it.
message ValidatingAdmissionPolicy {
// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;
// Specification of the desired behavior of the ValidatingAdmissionPolicy.
optional ValidatingAdmissionPolicySpec spec = 2;
// The status of the ValidatingAdmissionPolicy, including warnings that are useful to determine if the policy
// behaves in the expected way.
// Populated by the system.
// Read-only.
// +optional
optional ValidatingAdmissionPolicyStatus status = 3;
}
// ValidatingAdmissionPolicyBinding binds the ValidatingAdmissionPolicy with paramerized resources.
// ValidatingAdmissionPolicyBinding and parameter CRDs together define how cluster administrators configure policies for clusters.
//
// For a given admission request, each binding will cause its policy to be
// evaluated N times, where N is 1 for policies/bindings that don't use
// params, otherwise N is the number of parameters selected by the binding.
//
// The CEL expressions of a policy must have a computed CEL cost below the maximum
// CEL budget. Each evaluation of the policy is given an independent CEL cost budget.
// Adding/removing policies, bindings, or params can not affect whether a
// given (policy, binding, param) combination is within its own CEL budget.
message ValidatingAdmissionPolicyBinding {
// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;
// Specification of the desired behavior of the ValidatingAdmissionPolicyBinding.
optional ValidatingAdmissionPolicyBindingSpec spec = 2;
}
// ValidatingAdmissionPolicyBindingList is a list of ValidatingAdmissionPolicyBinding.
message ValidatingAdmissionPolicyBindingList {
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;
// List of PolicyBinding.
repeated ValidatingAdmissionPolicyBinding items = 2;
}
// ValidatingAdmissionPolicyBindingSpec is the specification of the ValidatingAdmissionPolicyBinding.
message ValidatingAdmissionPolicyBindingSpec {
// PolicyName references a ValidatingAdmissionPolicy name which the ValidatingAdmissionPolicyBinding binds to.
// If the referenced resource does not exist, this binding is considered invalid and will be ignored
// Required.
optional string policyName = 1;
// paramRef specifies the parameter resource used to configure the admission control policy.
// It should point to a resource of the type specified in ParamKind of the bound ValidatingAdmissionPolicy.
// If the policy specifies a ParamKind and the resource referred to by ParamRef does not exist, this binding is considered mis-configured and the FailurePolicy of the ValidatingAdmissionPolicy applied.
// If the policy does not specify a ParamKind then this field is ignored, and the rules are evaluated without a param.
// +optional
optional ParamRef paramRef = 2;
// MatchResources declares what resources match this binding and will be validated by it.
// Note that this is intersected with the policy's matchConstraints, so only requests that are matched by the policy can be selected by this.
// If this is unset, all resources matched by the policy are validated by this binding
// When resourceRules is unset, it does not constrain resource matching. If a resource is matched by the other fields of this object, it will be validated.
// Note that this is differs from ValidatingAdmissionPolicy matchConstraints, where resourceRules are required.
// +optional
optional MatchResources matchResources = 3;
// validationActions declares how Validations of the referenced ValidatingAdmissionPolicy are enforced.
// If a validation evaluates to false it is always enforced according to these actions.
//
// Failures defined by the ValidatingAdmissionPolicy's FailurePolicy are enforced according
// to these actions only if the FailurePolicy is set to Fail, otherwise the failures are
// ignored. This includes compilation errors, runtime errors and misconfigurations of the policy.
//
// validationActions is declared as a set of action values. Order does
// not matter. validationActions may not contain duplicates of the same action.
//
// The supported actions values are:
//
// "Deny" specifies that a validation failure results in a denied request.
//
// "Warn" specifies that a validation failure is reported to the request client
// in HTTP Warning headers, with a warning code of 299. Warnings can be sent
// both for allowed or denied admission responses.
//
// "Audit" specifies that a validation failure is included in the published
// audit event for the request. The audit event will contain a
// `validation.policy.admission.k8s.io/validation_failure` audit annotation
// with a value containing the details of the validation failures, formatted as
// a JSON list of objects, each with the following fields:
// - message: The validation failure message string
// - policy: The resource name of the ValidatingAdmissionPolicy
// - binding: The resource name of the ValidatingAdmissionPolicyBinding
// - expressionIndex: The index of the failed validations in the ValidatingAdmissionPolicy
// - validationActions: The enforcement actions enacted for the validation failure
// Example audit annotation:
// `"validation.policy.admission.k8s.io/validation_failure": "[{\"message\": \"Invalid value\", {\"policy\": \"policy.example.com\", {\"binding\": \"policybinding.example.com\", {\"expressionIndex\": \"1\", {\"validationActions\": [\"Audit\"]}]"`
//
// Clients should expect to handle additional values by ignoring
// any values not recognized.
//
// "Deny" and "Warn" may not be used together since this combination
// needlessly duplicates the validation failure both in the
// API response body and the HTTP warning headers.
//
// Required.
// +listType=set
repeated string validationActions = 4;
}
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// +k8s:prerelease-lifecycle-gen:introduced=1.30
// ValidatingAdmissionPolicyList is a list of ValidatingAdmissionPolicy.
message ValidatingAdmissionPolicyList {
// Standard list metadata.
// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
// +optional
optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 1;
// List of ValidatingAdmissionPolicy.
repeated ValidatingAdmissionPolicy items = 2;
}
// ValidatingAdmissionPolicySpec is the specification of the desired behavior of the AdmissionPolicy.
message ValidatingAdmissionPolicySpec {
// ParamKind specifies the kind of resources used to parameterize this policy.
// If absent, there are no parameters for this policy and the param CEL variable will not be provided to validation expressions.
// If ParamKind refers to a non-existent kind, this policy definition is mis-configured and the FailurePolicy is applied.
// If paramKind is specified but paramRef is unset in ValidatingAdmissionPolicyBinding, the params variable will be null.
// +optional
optional ParamKind paramKind = 1;
// MatchConstraints specifies what resources this policy is designed to validate.
// The AdmissionPolicy cares about a request if it matches _all_ Constraints.
// However, in order to prevent clusters from being put into an unstable state that cannot be recovered from via the API
// ValidatingAdmissionPolicy cannot match ValidatingAdmissionPolicy and ValidatingAdmissionPolicyBinding.
// Required.
optional MatchResources matchConstraints = 2;
// Validations contain CEL expressions which is used to apply the validation.
// Validations and AuditAnnotations may not both be empty; a minimum of one Validations or AuditAnnotations is
// required.
// +listType=atomic
// +optional
repeated Validation validations = 3;
// failurePolicy defines how to handle failures for the admission policy. Failures can
// occur from CEL expression parse errors, type check errors, runtime errors and invalid
// or mis-configured policy definitions or bindings.
//
// A policy is invalid if spec.paramKind refers to a non-existent Kind.
// A binding is invalid if spec.paramRef.name refers to a non-existent resource.
//
// failurePolicy does not define how validations that evaluate to false are handled.
//
// When failurePolicy is set to Fail, ValidatingAdmissionPolicyBinding validationActions
// define how failures are enforced.
//
// Allowed values are Ignore or Fail. Defaults to Fail.
// +optional
optional string failurePolicy = 4;
// auditAnnotations contains CEL expressions which are used to produce audit
// annotations for the audit event of the API request.
// validations and auditAnnotations may not both be empty; a least one of validations or auditAnnotations is
// required.
// +listType=atomic
// +optional
repeated AuditAnnotation auditAnnotations = 5;
// MatchConditions is a list of conditions that must be met for a request to be validated.
// Match conditions filter requests that have already been matched by the rules,
// namespaceSelector, and objectSelector. An empty list of matchConditions matches all requests.
// There are a maximum of 64 match conditions allowed.
//
// If a parameter object is provided, it can be accessed via the `params` handle in the same
// manner as validation expressions.
//
// The exact matching logic is (in order):
// 1. If ANY matchCondition evaluates to FALSE, the policy is skipped.
// 2. If ALL matchConditions evaluate to TRUE, the policy is evaluated.
// 3. If any matchCondition evaluates to an error (but none are FALSE):
// - If failurePolicy=Fail, reject the request
// - If failurePolicy=Ignore, the policy is skipped
//
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
// +optional
repeated MatchCondition matchConditions = 6;
// Variables contain definitions of variables that can be used in composition of other expressions.
// Each variable is defined as a named CEL expression.
// The variables defined here will be available under `variables` in other expressions of the policy
// except MatchConditions because MatchConditions are evaluated before the rest of the policy.
//
// The expression of a variable can refer to other variables defined earlier in the list but not those after.
// Thus, Variables must be sorted by the order of first appearance and acyclic.
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
// +optional
repeated Variable variables = 7;
}
// ValidatingAdmissionPolicyStatus represents the status of an admission validation policy.
message ValidatingAdmissionPolicyStatus {
// The generation observed by the controller.
// +optional
optional int64 observedGeneration = 1;
// The results of type checking for each expression.
// Presence of this field indicates the completion of the type checking.
// +optional
optional TypeChecking typeChecking = 2;
// The conditions represent the latest available observations of a policy's current state.
// +optional
// +listType=map
// +listMapKey=type
repeated k8s.io.apimachinery.pkg.apis.meta.v1.Condition conditions = 3;
}
// ValidatingWebhook describes an admission webhook and the resources and operations it applies to.
message ValidatingWebhook {
// The name of the admission webhook.
@ -352,6 +822,7 @@ message ValidatingWebhook {
// from putting the cluster in a state which cannot be recovered from without completely
// disabling the plugin, ValidatingAdmissionWebhooks and MutatingAdmissionWebhooks are never called
// on admission requests for ValidatingWebhookConfiguration and MutatingWebhookConfiguration objects.
// +listType=atomic
repeated RuleWithOperations rules = 3;
// FailurePolicy defines how unrecognized errors from the admission endpoint are handled -
@ -459,6 +930,7 @@ message ValidatingWebhook {
// If a persisted webhook configuration specifies allowed versions and does not
// include any versions known to the API Server, calls to the webhook will fail
// and be subject to the failure policy.
// +listType=atomic
repeated string admissionReviewVersions = 8;
// MatchConditions is a list of conditions that must be met for a request to be sent to this
@ -473,13 +945,10 @@ message ValidatingWebhook {
// - If failurePolicy=Fail, reject the request
// - If failurePolicy=Ignore, the error is ignored and the webhook is skipped
//
// This is a beta feature and managed by the AdmissionWebhookMatchConditions feature gate.
//
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
// +featureGate=AdmissionWebhookMatchConditions
// +optional
repeated MatchCondition matchConditions = 11;
}
@ -494,6 +963,8 @@ message ValidatingWebhookConfiguration {
// +optional
// +patchMergeKey=name
// +patchStrategy=merge
// +listType=map
// +listMapKey=name
repeated ValidatingWebhook Webhooks = 2;
}
@ -508,6 +979,97 @@ message ValidatingWebhookConfigurationList {
repeated ValidatingWebhookConfiguration items = 2;
}
// Validation specifies the CEL expression which is used to apply the validation.
message Validation {
// 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 in `X` are preserved and
// non-intersecting elements in `Y` are appended, retaining their partial order.
// - 'map': `X + Y` performs a merge where the array positions of all keys in `X` are preserved but the values
// are overwritten by values in `Y` when the key sets of `X` and `Y` intersect. Elements in `Y` with
// non-intersecting keys are appended, retaining their partial order.
// Required.
optional string Expression = 1;
// 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}".
// +optional
optional string message = 2;
// 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.
// +optional
optional string reason = 3;
// 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)+")"
// +optional
optional string messageExpression = 4;
}
// Variable is the definition of a variable that is used for composition. A variable is defined as a named expression.
// +structType=atomic
message Variable {
// Name is the name of the variable. The name must be a valid CEL identifier and unique among all variables.
// The variable can be accessed in other expressions through `variables`
// For example, if name is "foo", the variable will be available as `variables.foo`
optional string Name = 1;
// Expression is the expression that will be evaluated as the value of the variable.
// The CEL expression has access to the same identifiers as the CEL expressions in Validation.
optional string Expression = 2;
}
// WebhookClientConfig contains the information to make a TLS
// connection with the webhook
message WebhookClientConfig {