admissionregistration

type AuditAnnotation struct {
	// 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.
	Key string

	// 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.
	ValueExpression string
}

type ExpressionWarning struct {
	// 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"
	FieldRef string
	// 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.
	Warning string
}

type FailurePolicyType string

type MatchCondition struct {
	// Name is an identifier for this match condition, used for strategic merging of MatchConditions,
	// as well as providing an identifier for logging purposes. A good name should be descriptive of
	// the associated expression.
	// Name must be a qualified name consisting of alphanumeric characters, '-', '_' or '.', and
	// must start and end with an alphanumeric character (e.g. 'MyName',  or 'my.name',  or
	// '123-abc', regex used for validation is '([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9]') with an
	// optional DNS subdomain prefix and '/' (e.g. 'example.com/MyName')
	//
	// Required.
	Name string

	// Expression represents the expression which will be evaluated by CEL. Must evaluate to bool.
	// CEL expressions have access to the contents of the AdmissionRequest and Authorizer, organized into CEL 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 admission request(/pkg/apis/admission/types.go#AdmissionRequest).
	// '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.
	// 'variables' - Map of composited variables, from its name to its lazily evaluated value.
	//   For example, a variable named 'foo' can be access as 'variables.foo'
	// Documentation on CEL: https://kubernetes.io/docs/reference/using-api/cel/
	//
	// Required.
	Expression string
}

type MatchPolicyType string

type MatchResources struct {
	// 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
	NamespaceSelector *metav1.LabelSelector
	// 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
	ObjectSelector *metav1.LabelSelector
	// ResourceRules describes what operations on what resources/subresources the ValidatingAdmissionPolicy matches.
	// The policy cares about an operation if it matches _any_ Rule.
	// +optional
	ResourceRules []NamedRuleWithOperations
	// 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)
	// +optional
	ExcludeResourceRules []NamedRuleWithOperations
	// 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
	MatchPolicy *MatchPolicyType
}

type MutatingWebhook struct {
	// The name of the admission webhook.
	// Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where
	// "imagepolicy" is the name of the webhook, and kubernetes.io is the name
	// of the organization.
	// Required.
	Name string

	// ClientConfig defines how to communicate with the hook.
	// Required
	ClientConfig WebhookClientConfig

	// Rules describes what operations on what resources/subresources the webhook cares about.
	// The webhook cares about an operation if it matches _any_ Rule.
	Rules []RuleWithOperations

	// FailurePolicy defines how unrecognized errors from the admission endpoint are handled -
	// allowed values are Ignore or Fail. Defaults to Ignore.
	// +optional
	FailurePolicy *FailurePolicyType

	// matchPolicy defines how the "rules" 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 webhook.
	//
	// - 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 webhook.
	//
	// +optional
	MatchPolicy *MatchPolicyType

	// NamespaceSelector decides whether to run the webhook 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 webhook.
	//
	// 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 webhook 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
	NamespaceSelector *metav1.LabelSelector

	// ObjectSelector decides whether to run the webhook based on if the
	// object has matching labels. objectSelector is evaluated against both
	// the oldObject and newObject that would be sent to the webhook, 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
	ObjectSelector *metav1.LabelSelector

	// SideEffects states whether this webhook has side effects.
	// Acceptable values are: Unknown, None, Some, NoneOnDryRun
	// Webhooks with side effects MUST implement a reconciliation system, since a request may be
	// rejected by a future step in the admission chain and the side effects therefore need to be undone.
	// Requests with the dryRun attribute will be auto-rejected if they match a webhook with
	// sideEffects == Unknown or Some. Defaults to Unknown.
	// +optional
	SideEffects *SideEffectClass

	// TimeoutSeconds specifies the timeout for this webhook. After the timeout passes,
	// the webhook call will be ignored or the API call will fail based on the
	// failure policy.
	// The timeout value must be between 1 and 30 seconds.
	// +optional
	TimeoutSeconds *int32

	// AdmissionReviewVersions is an ordered list of preferred `AdmissionReview`
	// versions the Webhook expects. API server will try to use first version in
	// the list which it supports. If none of the versions specified in this list
	// supported by API server, validation will fail for this object.
	// If the webhook configuration has already been persisted with a version apiserver
	// does not understand, calls to the webhook will fail and be subject to the failure policy.
	// +optional
	AdmissionReviewVersions []string

	// reinvocationPolicy indicates whether this webhook should be called multiple times as part of a single admission evaluation.
	// Allowed values are "Never" and "IfNeeded".
	//
	// Never: the webhook will not be called more than once in a single admission evaluation.
	//
	// IfNeeded: the webhook will be called at least one additional time as part of the admission evaluation
	// if the object being admitted is modified by other admission plugins after the initial webhook call.
	// Webhooks that specify this option *must* be idempotent, and hence able to process objects they previously admitted.
	// Note:
	// * the number of additional invocations is not guaranteed to be exactly one.
	// * if additional invocations result in further modifications to the object, webhooks are not guaranteed to be invoked again.
	// * webhooks that use this option may be reordered to minimize the number of additional invocations.
	// * to validate an object after all mutations are guaranteed complete, use a validating admission webhook instead.
	//
	// Defaults to "Never".
	// +optional
	ReinvocationPolicy *ReinvocationPolicyType

	// MatchConditions is a list of conditions that must be met for a request to be sent to this
	// webhook. 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.
	//
	// The exact matching logic is (in order):
	//   1. If ANY matchCondition evaluates to FALSE, the webhook is skipped.
	//   2. If ALL matchConditions evaluate to TRUE, the webhook is called.
	//   3. If any matchCondition evaluates to an error (but none are FALSE):
	//      - 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.
	//
	// +featureGate=AdmissionWebhookMatchConditions
	// +optional
	MatchConditions []MatchCondition
}

type MutatingWebhookConfiguration struct {
	metav1.TypeMeta
	// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	// +optional
	metav1.ObjectMeta
	// Webhooks is a list of webhooks and the affected resources and operations.
	// +optional
	Webhooks []MutatingWebhook
}

type MutatingWebhookConfigurationList struct {
	metav1.TypeMeta
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta
	// List of MutatingWebhookConfiguration.
	Items []MutatingWebhookConfiguration
}

type NamedRuleWithOperations struct {
	// ResourceNames is an optional white list of names that the rule applies to.  An empty set means that everything is allowed.
	// +optional
	ResourceNames []string
	// RuleWithOperations is a tuple of Operations and Resources.
	RuleWithOperations RuleWithOperations
}

type OperationType string

type ParamKind struct {
	// APIVersion is the API group version the resources belong to.
	// In format of "group/version".
	// Required.
	APIVersion string

	// Kind is the API kind the resources belong to.
	// Required.
	Kind string
}

type ParamRef struct {
	// 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
	Name string

	// 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
	Namespace string

	// 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
	Selector *metav1.LabelSelector

	// 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
	ParameterNotFoundAction *ParameterNotFoundActionType
}

type ParameterNotFoundActionType string

type ReinvocationPolicyType string

type Rule struct {
	// APIGroups is the API groups the resources belong to. '*' is all groups.
	// If '*' is present, the length of the slice must be one.
	// Required.
	APIGroups []string

	// APIVersions is the API versions the resources belong to. '*' is all versions.
	// If '*' is present, the length of the slice must be one.
	// Required.
	APIVersions []string

	// Resources is a list of resources this rule applies to.
	//
	// For example:
	// 'pods' means pods.
	// 'pods/log' means the log subresource of pods.
	// '*' means all resources, but not subresources.
	// 'pods/*' means all subresources of pods.
	// '*/scale' means all scale subresources.
	// '*/*' means all resources and their subresources.
	//
	// If wildcard is present, the validation rule will ensure resources do not
	// overlap with each other.
	//
	// Depending on the enclosing object, subresources might not be allowed.
	// Required.
	Resources []string

	// scope specifies the scope of this rule.
	// Valid values are "Cluster", "Namespaced", and "*"
	// "Cluster" means that only cluster-scoped resources will match this rule.
	// Namespace API objects are cluster-scoped.
	// "Namespaced" means that only namespaced resources will match this rule.
	// "*" means that there are no scope restrictions.
	// Subresources match the scope of their parent resource.
	// Default is "*".
	//
	// +optional
	Scope *ScopeType
}

type RuleWithOperations struct {
	// Operations is the operations the admission hook cares about - CREATE, UPDATE, or *
	// for all operations.
	// If '*' is present, the length of the slice must be one.
	// Required.
	Operations []OperationType
	// Rule is embedded, it describes other criteria of the rule, like
	// APIGroups, APIVersions, Resources, etc.
	Rule
}

type ScopeType string

type ServiceReference struct {
	// `namespace` is the namespace of the service.
	// Required
	Namespace string
	// `name` is the name of the service.
	// Required
	Name string

	// `path` is an optional URL path which will be sent in any request to
	// this service.
	// +optional
	Path *string

	// If specified, the port on the service that hosting webhook.
	// `port` should be a valid port number (1-65535, inclusive).
	// +optional
	Port int32
}

type SideEffectClass string

type TypeChecking struct {
	// The type checking warnings for each expression.
	// +optional
	// +listType=atomic
	ExpressionWarnings []ExpressionWarning
}

type ValidatingAdmissionPolicy struct {
	metav1.TypeMeta
	// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	// +optional
	metav1.ObjectMeta
	// Specification of the desired behavior of the ValidatingAdmissionPolicy.
	Spec ValidatingAdmissionPolicySpec
	// 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
	Status ValidatingAdmissionPolicyStatus
}

type ValidatingAdmissionPolicyBinding struct {
	metav1.TypeMeta
	// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	// +optional
	metav1.ObjectMeta
	// Specification of the desired behavior of the ValidatingAdmissionPolicyBinding.
	Spec ValidatingAdmissionPolicyBindingSpec
}

type ValidatingAdmissionPolicyBindingList struct {
	metav1.TypeMeta
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta
	// List of PolicyBinding.
	Items []ValidatingAdmissionPolicyBinding
}

type ValidatingAdmissionPolicyBindingSpec struct {
	// 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.
	PolicyName string

	// 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
	ParamRef *ParamRef

	// 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
	MatchResources *MatchResources

	// 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.
	ValidationActions []ValidationAction
}

type ValidatingAdmissionPolicyConditionType string

type ValidatingAdmissionPolicyList struct {
	metav1.TypeMeta
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta
	// List of ValidatingAdmissionPolicy.
	Items []ValidatingAdmissionPolicy
}

type ValidatingAdmissionPolicySpec struct {
	// 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
	ParamKind *ParamKind

	// MatchConstraints specifies what resources this policy is designed to validate.
	// The AdmissionPolicy cares about a request if it matches _all_ Constraint.
	// 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.
	MatchConstraints *MatchResources

	// validations contain CEL expressions which are used to validate admission requests.
	// validations and auditAnnotations may not both be empty; a minimum of one validations or auditAnnotations is
	// required.
	// +optional
	Validations []Validation

	// 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
	//
	// +optional
	MatchConditions []MatchCondition

	// 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
	FailurePolicy *FailurePolicyType

	// 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.
	// A maximum of 20 auditAnnotation are allowed per ValidatingAdmissionPolicy.
	// +optional
	AuditAnnotations []AuditAnnotation

	// 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.
	// +optional
	Variables []Variable
}

type ValidatingAdmissionPolicyStatus struct {
	// The generation observed by the controller.
	// +optional
	ObservedGeneration int64
	// The results of type checking for each expression.
	// Presence of this field indicates the completion of the type checking.
	// +optional
	TypeChecking *TypeChecking
	// The conditions represent the latest available observations of a policy's current state.
	// +optional
	// +listType=map
	// +listMapKey=type
	Conditions []metav1.Condition
}

type ValidatingWebhook struct {
	// The name of the admission webhook.
	// Name should be fully qualified, e.g., imagepolicy.kubernetes.io, where
	// "imagepolicy" is the name of the webhook, and kubernetes.io is the name
	// of the organization.
	// Required.
	Name string

	// ClientConfig defines how to communicate with the hook.
	// Required
	ClientConfig WebhookClientConfig

	// Rules describes what operations on what resources/subresources the webhook cares about.
	// The webhook cares about an operation if it matches _any_ Rule.
	Rules []RuleWithOperations

	// FailurePolicy defines how unrecognized errors from the admission endpoint are handled -
	// allowed values are Ignore or Fail. Defaults to Ignore.
	// +optional
	FailurePolicy *FailurePolicyType

	// matchPolicy defines how the "rules" 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 webhook.
	//
	// - 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 webhook.
	//
	// +optional
	MatchPolicy *MatchPolicyType

	// NamespaceSelector decides whether to run the webhook 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 webhook.
	//
	// 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 webhook 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
	NamespaceSelector *metav1.LabelSelector

	// ObjectSelector decides whether to run the webhook based on if the
	// object has matching labels. objectSelector is evaluated against both
	// the oldObject and newObject that would be sent to the webhook, 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
	ObjectSelector *metav1.LabelSelector

	// SideEffects states whether this webhook has side effects.
	// Acceptable values are: Unknown, None, Some, NoneOnDryRun
	// Webhooks with side effects MUST implement a reconciliation system, since a request may be
	// rejected by a future step in the admission chain and the side effects therefore need to be undone.
	// Requests with the dryRun attribute will be auto-rejected if they match a webhook with
	// sideEffects == Unknown or Some. Defaults to Unknown.
	// +optional
	SideEffects *SideEffectClass

	// TimeoutSeconds specifies the timeout for this webhook. After the timeout passes,
	// the webhook call will be ignored or the API call will fail based on the
	// failure policy.
	// The timeout value must be between 1 and 30 seconds.
	// +optional
	TimeoutSeconds *int32

	// AdmissionReviewVersions is an ordered list of preferred `AdmissionReview`
	// versions the Webhook expects. API server will try to use first version in
	// the list which it supports. If none of the versions specified in this list
	// supported by API server, validation will fail for this object.
	// If the webhook configuration has already been persisted with a version apiserver
	// does not understand, calls to the webhook will fail and be subject to the failure policy.
	// +optional
	AdmissionReviewVersions []string

	// MatchConditions is a list of conditions that must be met for a request to be sent to this
	// webhook. 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.
	//
	// The exact matching logic is (in order):
	//   1. If ANY matchCondition evaluates to FALSE, the webhook is skipped.
	//   2. If ALL matchConditions evaluate to TRUE, the webhook is called.
	//   3. If any matchCondition evaluates to an error (but none are FALSE):
	//      - 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.
	//
	// +featureGate=AdmissionWebhookMatchConditions
	// +optional
	MatchConditions []MatchCondition
}

type ValidatingWebhookConfiguration struct {
	metav1.TypeMeta
	// Standard object metadata; More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	// +optional
	metav1.ObjectMeta
	// Webhooks is a list of webhooks and the affected resources and operations.
	// +optional
	Webhooks []ValidatingWebhook
}

type ValidatingWebhookConfigurationList struct {
	metav1.TypeMeta
	// Standard list metadata.
	// More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	// +optional
	metav1.ListMeta
	// List of ValidatingWebhookConfigurations.
	Items []ValidatingWebhookConfiguration
}

type Validation struct {
	// 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.
	Expression 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 ExpressMessage is specified, Message will be ignored
	// If the Expression contains line breaks. Eith Message or ExpressMessage is required.
	// The message must not contain line breaks.
	// If unset, the message is "failed Expression: {Expression}".
	// +optional
	Message 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.
	// +optional
	Reason *metav1.StatusReason
	// 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
	MessageExpression string
}

type ValidationAction string

type Variable struct {
	// 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`
	Name string

	// 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.
	Expression string
}

type WebhookClientConfig struct {
	// `url` gives the location of the webhook, in standard URL form
	// (`scheme://host:port/path`). Exactly one of `url` or `service`
	// must be specified.
	//
	// The `host` should not refer to a service running in the cluster; use
	// the `service` field instead. The host might be resolved via external
	// DNS in some apiservers (e.g., `kube-apiserver` cannot resolve
	// in-cluster DNS as that would be a layering violation). `host` may
	// also be an IP address.
	//
	// Please note that using `localhost` or `127.0.0.1` as a `host` is
	// risky unless you take great care to run this webhook on all hosts
	// which run an apiserver which might need to make calls to this
	// webhook. Such installs are likely to be non-portable, i.e., not easy
	// to turn up in a new cluster.
	//
	// The scheme must be "https"; the URL must begin with "https://".
	//
	// A path is optional, and if present may be any string permissible in
	// a URL. You may use the path to pass an arbitrary string to the
	// webhook, for example, a cluster identifier.
	//
	// Attempting to use a user or basic auth e.g. "user:password@" is not
	// allowed. Fragments ("#...") and query parameters ("?...") are not
	// allowed, either.
	//
	// +optional
	URL *string

	// `service` is a reference to the service for this webhook. Either
	// `service` or `url` must be specified.
	//
	// If the webhook is running within the cluster, then you should use `service`.
	//
	// +optional
	Service *ServiceReference

	// `caBundle` is a PEM encoded CA bundle which will be used to validate the webhook's server certificate.
	// If unspecified, system trust roots on the apiserver are used.
	// +optional
	CABundle []byte
}