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NoEvictionPolicy dictates whether a no-eviction policy is prefered or mandatory. Needs to be used with caution as this will give users ability to protect their pods from eviction. Which might work against enfored policies. E.g. plugins evicting pods violating security policies.
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package defaultevictor
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import (
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"fmt"
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"k8s.io/klog/v2"
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"k8s.io/apimachinery/pkg/runtime"
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)
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func ValidateDefaultEvictorArgs(obj runtime.Object) error {
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args := obj.(*DefaultEvictorArgs)
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if args.PriorityThreshold != nil && args.PriorityThreshold.Value != nil && len(args.PriorityThreshold.Name) > 0 {
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return fmt.Errorf("priority threshold misconfigured, only one of priorityThreshold fields can be set")
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}
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if args.MinReplicas == 1 {
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klog.V(4).Info("DefaultEvictor minReplicas must be greater than 1 to check for min pods during eviction. This check will be ignored during eviction.")
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}
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if args.NoEvictionPolicy != "" {
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if args.NoEvictionPolicy != PreferredNoEvictionPolicy && args.NoEvictionPolicy != MandatoryNoEvictionPolicy {
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return fmt.Errorf("noEvictionPolicy accepts only %q values", []NoEvictionPolicy{PreferredNoEvictionPolicy, MandatoryNoEvictionPolicy})
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}
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}
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return nil
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}
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