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/*
Copyright 2022 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package validating
import (
"net/http"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type PolicyDecisionAction string
const (
ActionAdmit PolicyDecisionAction = "admit"
ActionDeny PolicyDecisionAction = "deny"
)
type PolicyDecisionEvaluation string
const (
EvalAdmit PolicyDecisionEvaluation = "admit"
EvalError PolicyDecisionEvaluation = "error"
EvalDeny PolicyDecisionEvaluation = "deny"
)
// PolicyDecision contains the action determined from a cel evaluation along with metadata such as message, reason and duration
type PolicyDecision struct {
Action PolicyDecisionAction
Evaluation PolicyDecisionEvaluation
Message string
Reason metav1.StatusReason
Elapsed time.Duration
}
type PolicyAuditAnnotationAction string
const (
// AuditAnnotationActionPublish indicates that the audit annotation should be
// published with the audit event.
AuditAnnotationActionPublish PolicyAuditAnnotationAction = "publish"
// AuditAnnotationActionError indicates that the valueExpression resulted
// in an error.
AuditAnnotationActionError PolicyAuditAnnotationAction = "error"
// AuditAnnotationActionExclude indicates that the audit annotation should be excluded
// because the valueExpression evaluated to null, or because FailurePolicy is Ignore
// and the expression failed with a parse error, type check error, or runtime error.
AuditAnnotationActionExclude PolicyAuditAnnotationAction = "exclude"
)
type PolicyAuditAnnotation struct {
Key string
Value string
Elapsed time.Duration
Action PolicyAuditAnnotationAction
Error string
}
func reasonToCode(r metav1.StatusReason) int32 {
switch r {
case metav1.StatusReasonForbidden:
return http.StatusForbidden
case metav1.StatusReasonUnauthorized:
return http.StatusUnauthorized
case metav1.StatusReasonRequestEntityTooLarge:
return http.StatusRequestEntityTooLarge
case metav1.StatusReasonInvalid:
return http.StatusUnprocessableEntity
default:
// It should not reach here since we only allow above reason to be set from API level
return http.StatusUnprocessableEntity
}
}
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