package v1beta1

import "cue.dev/x/k8s.io/apimachinery/pkg/apis/meta/v1"

// ApplyConfiguration defines the desired configuration values of an object.
#ApplyConfiguration: {
	// expression will be evaluated by CEL to create an apply configuration. ref:
	// https://github.com/google/cel-spec
	//
	// Apply configurations are declared in CEL using object initialization. For
	// example, this CEL expression returns an apply configuration to set a single
	// field:
	//
	// Object{
	// spec: Object.spec{
	// serviceAccountName: "example"
	// }
	// }
	//
	// Apply configurations may not modify atomic structs, maps or arrays due to the
	// risk of accidental deletion of values not included in the apply
	// configuration.
	//
	// CEL expressions have access to the object types needed to create apply configurations:
	//
	// - 'Object' - CEL type of the resource object. - 'Object.<fieldName>' - CEL
	// type of object field (such as 'Object.spec') -
	// 'Object.<fieldName1>.<fieldName2>...<fieldNameN>` - CEL type of nested field
	// (such as 'Object.spec.containers')
	//
	// CEL expressions have access to the contents of the API request, organized
	// into CEL variables as well as some other useful variables:
	//
	// - 'object' - The object from the incoming request. The value is null for
	// DELETE requests. - 'oldObject' - The existing object. The value is null for
	// CREATE requests. - 'request' - Attributes of the API
	// request([ref](/pkg/apis/admission/types.go#AdmissionRequest)). - 'params' -
	// Parameter resource referred to by the policy binding being evaluated. Only
	// populated if the policy has a ParamKind. - 'namespaceObject' - The namespace
	// object that the incoming object belongs to. The value is null for
	// cluster-scoped resources. - 'variables' - Map of composited variables, from
	// its name to its lazily evaluated value.
	// For example, a variable named 'foo' can be accessed as 'variables.foo'.
	// - 'authorizer' - A CEL Authorizer. May be used to perform authorization
	// checks for the principal (user or service account) of the request.
	// See https://pkg.go.dev/k8s.io/apiserver/pkg/cel/library#Authz
	// - 'authorizer.requestResource' - A CEL ResourceCheck constructed from the
	// 'authorizer' and configured with the
	// request resource.
	//
	// The `apiVersion`, `kind`, `metadata.name` and `metadata.generateName` are
	// always accessible from the root of the object. No other metadata properties
	// are accessible.
	//
	// Only property names of the form `[a-zA-Z_.-/][a-zA-Z0-9_.-/]*` are accessible. Required.
	"expression"?: string
}

// JSONPatch defines a JSON Patch.
#JSONPatch: {
	// expression will be evaluated by CEL to create a [JSON
	// patch](https://jsonpatch.com/). ref: https://github.com/google/cel-spec
	//
	// expression must return an array of JSONPatch values.
	//
	// For example, this CEL expression returns a JSON patch to conditionally modify a value:
	//
	// [
	// JSONPatch{op: "test", path: "/spec/example", value: "Red"},
	// JSONPatch{op: "replace", path: "/spec/example", value: "Green"}
	// ]
	//
	// To define an object for the patch value, use Object types. For example:
	//
	// [
	// JSONPatch{
	// op: "add",
	// path: "/spec/selector",
	// value: Object.spec.selector{matchLabels: {"environment": "test"}}
	// }
	// ]
	//
	// To use strings containing '/' and '~' as JSONPatch path keys, use
	// "jsonpatch.escapeKey". For example:
	//
	// [
	// JSONPatch{
	// op: "add",
	// path: "/metadata/labels/" + jsonpatch.escapeKey("example.com/environment"),
	// value: "test"
	// },
	// ]
	//
	// CEL expressions have access to the types needed to create JSON patches and objects:
	//
	// - 'JSONPatch' - CEL type of JSON Patch operations. JSONPatch has the fields
	// 'op', 'from', 'path' and 'value'.
	// See [JSON patch](https://jsonpatch.com/) for more details. The 'value' field
	// may be set to any of: string,
	// integer, array, map or object. If set, the 'path' and 'from' fields must be set to a
	// [JSON pointer](https://datatracker.ietf.org/doc/html/rfc6901/) string, where
	// the 'jsonpatch.escapeKey()' CEL
	// function may be used to escape path keys containing '/' and '~'.
	// - 'Object' - CEL type of the resource object. - 'Object.<fieldName>' - CEL
	// type of object field (such as 'Object.spec') -
	// 'Object.<fieldName1>.<fieldName2>...<fieldNameN>` - CEL type of nested field
	// (such as 'Object.spec.containers')
	//
	// CEL expressions have access to the contents of the API request, organized
	// into CEL variables as well as some other useful variables:
	//
	// - 'object' - The object from the incoming request. The value is null for
	// DELETE requests. - 'oldObject' - The existing object. The value is null for
	// CREATE requests. - 'request' - Attributes of the API
	// request([ref](/pkg/apis/admission/types.go#AdmissionRequest)). - 'params' -
	// Parameter resource referred to by the policy binding being evaluated. Only
	// populated if the policy has a ParamKind. - 'namespaceObject' - The namespace
	// object that the incoming object belongs to. The value is null for
	// cluster-scoped resources. - 'variables' - Map of composited variables, from
	// its name to its lazily evaluated value.
	// For example, a variable named 'foo' can be accessed as 'variables.foo'.
	// - 'authorizer' - A CEL Authorizer. May be used to perform authorization
	// checks for the principal (user or service account) of the request.
	// See https://pkg.go.dev/k8s.io/apiserver/pkg/cel/library#Authz
	// - 'authorizer.requestResource' - A CEL ResourceCheck constructed from the
	// 'authorizer' and configured with the
	// request resource.
	//
	// CEL expressions have access to [Kubernetes CEL function
	// libraries](https://kubernetes.io/docs/reference/using-api/cel/#cel-options-language-features-and-libraries)
	// as well as:
	//
	// - 'jsonpatch.escapeKey' - Performs JSONPatch key escaping. '~' and '/' are
	// escaped as '~0' and `~1' respectively).
	//
	// Only property names of the form `[a-zA-Z_.-/][a-zA-Z0-9_.-/]*` are accessible. Required.
	"expression"?: string
}

// MatchCondition represents a condition which must be fulfilled for a request
// to be sent to a webhook.
#MatchCondition: {
	// 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.
	// Documentation on CEL: https://kubernetes.io/docs/reference/using-api/cel/
	//
	// Required.
	"expression"!: string

	// 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
}

// 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)
#MatchResources: {
	// 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)
	"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"
	"matchPolicy"?: string

	// 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.
	"namespaceSelector"?: v1.#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.
	"objectSelector"?: v1.#LabelSelector

	// resourceRules describes what operations on what resources/subresources the
	// ValidatingAdmissionPolicy matches. The policy cares about an operation if it
	// matches _any_ Rule.
	"resourceRules"?: [...#NamedRuleWithOperations]
}

// MutatingAdmissionPolicy describes the definition of an admission mutation
// policy that mutates the object coming into admission chain.
#MutatingAdmissionPolicy: {
	// APIVersion defines the versioned schema of this representation of an object.
	// Servers should convert recognized schemas to the latest internal value, and
	// may reject unrecognized values. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
	"apiVersion": "admissionregistration.k8s.io/v1beta1"

	// Kind is a string value representing the REST resource this object represents.
	// Servers may infer this from the endpoint the client submits requests to.
	// Cannot be updated. In CamelCase. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"kind": "MutatingAdmissionPolicy"

	// metadata is the standard object metadata; More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	"metadata"?: v1.#ObjectMeta

	// spec defines the desired behavior of the MutatingAdmissionPolicy.
	"spec"?: #MutatingAdmissionPolicySpec
}

// MutatingAdmissionPolicyBinding binds the MutatingAdmissionPolicy with
// parametrized resources. MutatingAdmissionPolicyBinding and the optional
// parameter resource 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. Each
// evaluation is constrained by a [runtime cost
// budget](https://kubernetes.io/docs/reference/using-api/cel/#runtime-cost-budget).
//
// Adding/removing policies, bindings, or params can not affect whether a given
// (policy, binding, param) combination is within its own CEL budget.
#MutatingAdmissionPolicyBinding: {
	// APIVersion defines the versioned schema of this representation of an object.
	// Servers should convert recognized schemas to the latest internal value, and
	// may reject unrecognized values. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
	"apiVersion": "admissionregistration.k8s.io/v1beta1"

	// Kind is a string value representing the REST resource this object represents.
	// Servers may infer this from the endpoint the client submits requests to.
	// Cannot be updated. In CamelCase. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"kind": "MutatingAdmissionPolicyBinding"

	// metadata is the standard object metadata; More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata.
	"metadata"?: v1.#ObjectMeta

	// spec defines the desired behavior of the MutatingAdmissionPolicyBinding.
	"spec"?: #MutatingAdmissionPolicyBindingSpec
}

// MutatingAdmissionPolicyBindingList is a list of MutatingAdmissionPolicyBinding.
#MutatingAdmissionPolicyBindingList: {
	// APIVersion defines the versioned schema of this representation of an object.
	// Servers should convert recognized schemas to the latest internal value, and
	// may reject unrecognized values. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
	"apiVersion": "admissionregistration.k8s.io/v1beta1"

	// List of PolicyBinding.
	"items"!: [...#MutatingAdmissionPolicyBinding]

	// Kind is a string value representing the REST resource this object represents.
	// Servers may infer this from the endpoint the client submits requests to.
	// Cannot be updated. In CamelCase. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"kind": "MutatingAdmissionPolicyBindingList"

	// metadata is the standard list metadata. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"metadata"?: v1.#ListMeta
}

// MutatingAdmissionPolicyBindingSpec is the specification of the MutatingAdmissionPolicyBinding.
#MutatingAdmissionPolicyBindingSpec: {
	// matchResources limits what resources match this binding and may be mutated by
	// it. Note that if matchResources matches a resource, the resource must also
	// match a policy's matchConstraints and matchConditions before the resource
	// may be mutated. When matchResources is unset, it does not constrain resource
	// matching, and only the policy's matchConstraints and matchConditions must
	// match for the resource to be mutated. Additionally,
	// matchResources.resourceRules are optional and do not constraint matching
	// when unset. Note that this is differs from MutatingAdmissionPolicy
	// matchConstraints, where resourceRules are required. The CREATE, UPDATE and
	// CONNECT operations are allowed. The DELETE operation may not be matched. '*'
	// matches CREATE, UPDATE and CONNECT.
	"matchResources"?: #MatchResources

	// paramRef specifies the parameter resource used to configure the admission
	// control policy. It should point to a resource of the type specified in
	// spec.ParamKind of the bound MutatingAdmissionPolicy. 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
	// MutatingAdmissionPolicy applied. If the policy does not specify a ParamKind
	// then this field is ignored, and the rules are evaluated without a param.
	"paramRef"?: #ParamRef

	// policyName references a MutatingAdmissionPolicy name which the
	// MutatingAdmissionPolicyBinding binds to. If the referenced resource does not
	// exist, this binding is considered invalid and will be ignored Required.
	"policyName"?: string
}

// MutatingAdmissionPolicyList is a list of MutatingAdmissionPolicy.
#MutatingAdmissionPolicyList: {
	// APIVersion defines the versioned schema of this representation of an object.
	// Servers should convert recognized schemas to the latest internal value, and
	// may reject unrecognized values. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
	"apiVersion": "admissionregistration.k8s.io/v1beta1"

	// List of ValidatingAdmissionPolicy.
	"items"!: [...#MutatingAdmissionPolicy]

	// Kind is a string value representing the REST resource this object represents.
	// Servers may infer this from the endpoint the client submits requests to.
	// Cannot be updated. In CamelCase. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"kind": "MutatingAdmissionPolicyList"

	// metadata is the standard list metadata. More info:
	// https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
	"metadata"?: v1.#ListMeta
}

// MutatingAdmissionPolicySpec is the specification of the desired behavior of the admission policy.
#MutatingAdmissionPolicySpec: {
	// 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 paramKind refers to a non-existent Kind. A binding is
	// invalid if paramRef.name refers to a non-existent resource.
	//
	// failurePolicy does not define how validations that evaluate to false are handled.
	//
	// Allowed values are Ignore or Fail. Defaults to Fail.
	"failurePolicy"?: string

	// 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 matchConstraints. 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
	"matchConditions"?: [...#MatchCondition]

	// matchConstraints specifies what resources this policy is designed to
	// validate. The MutatingAdmissionPolicy 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
	// MutatingAdmissionPolicy cannot match MutatingAdmissionPolicy and
	// MutatingAdmissionPolicyBinding. The CREATE, UPDATE and CONNECT operations
	// are allowed. The DELETE operation may not be matched. '*' matches CREATE,
	// UPDATE and CONNECT. Required.
	"matchConstraints"?: #MatchResources

	// mutations contain operations to perform on matching objects. mutations may
	// not be empty; a minimum of one mutation is required. mutations are evaluated
	// in order, and are reinvoked according to the reinvocationPolicy. The
	// mutations of a policy are invoked for each binding of this policy and
	// reinvocation of mutations occurs on a per binding basis.
	"mutations"?: [...#Mutation]

	// 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
	// MutatingAdmissionPolicyBinding, the params variable will be null.
	"paramKind"?: #ParamKind

	// reinvocationPolicy indicates whether mutations may be called multiple times
	// per MutatingAdmissionPolicyBinding as part of a single admission evaluation.
	// Allowed values are "Never" and "IfNeeded".
	//
	// Never: These mutations will not be called more than once per binding in a
	// single admission evaluation.
	//
	// IfNeeded: These mutations may be invoked more than once per binding for a
	// single admission request and there is no guarantee of order with respect to
	// other admission plugins, admission webhooks, bindings of this policy and
	// admission policies. Mutations are only reinvoked when mutations change the
	// object after this mutation is invoked. Required.
	"reinvocationPolicy"?: string

	// 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.
	"variables"?: [...#Variable]
}

// Mutation specifies the CEL expression which is used to apply the Mutation.
#Mutation: {
	// applyConfiguration defines the desired configuration values of an object. The
	// configuration is applied to the admission object using [structured merge
	// diff](https://github.com/kubernetes-sigs/structured-merge-diff). A CEL
	// expression is used to create apply configuration.
	"applyConfiguration"?: #ApplyConfiguration

	// jsonPatch defines a [JSON patch](https://jsonpatch.com/) operation to perform
	// a mutation to the object. A CEL expression is used to create the JSON patch.
	"jsonPatch"?: #JSONPatch

	// patchType indicates the patch strategy used. Allowed values are
	// "ApplyConfiguration" and "JSONPatch". Required.
	"patchType"!: string
}

// NamedRuleWithOperations is a tuple of Operations and Resources with ResourceNames.
#NamedRuleWithOperations: {
	// 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]

	// operations is the operations the admission hook cares about - CREATE, UPDATE,
	// DELETE, CONNECT or * for all of those operations and any future admission
	// operations that are added. If '*' is present, the length of the slice must
	// be one. Required.
	"operations"?: [...string]

	// resourceNames is an optional white list of names that the rule applies to. An
	// empty set means that everything is allowed.
	"resourceNames"?: [...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 "*".
	"scope"?: string
}

// ParamKind is a tuple of Group Kind and Version.
#ParamKind: {
	// 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
}

// ParamRef describes how to locate the params to be used as input to
// expressions of rules applied by a policy binding.
#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.
	"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.
	"namespace"?: string

	// 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"?: 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.
	"selector"?: v1.#LabelSelector
}

// Variable is the definition of a variable that is used for composition. A
// variable is defined as a named expression.
#Variable: {
	// 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

	// 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
}