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8d880506fe
Co-authored-by: Yang Guo <ygg@google.com> Co-authored-by: Chun Chen <chenchun.feed@gmail.com>
83 lines
2.9 KiB
Go
83 lines
2.9 KiB
Go
/*
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Copyright 2015 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 validation
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import (
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"errors"
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"fmt"
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"k8s.io/api/core/v1"
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utilerrors "k8s.io/apimachinery/pkg/util/errors"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apimachinery/pkg/util/validation"
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v1helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
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schedulerapi "k8s.io/kubernetes/pkg/scheduler/api"
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)
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// ValidatePolicy checks for errors in the Config
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// It does not return early so that it can find as many errors as possible
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func ValidatePolicy(policy schedulerapi.Policy) error {
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var validationErrors []error
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for _, priority := range policy.Priorities {
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if priority.Weight <= 0 || priority.Weight >= schedulerapi.MaxWeight {
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validationErrors = append(validationErrors, fmt.Errorf("Priority %s should have a positive weight applied to it or it has overflown", priority.Name))
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}
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}
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binders := 0
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extenderManagedResources := sets.NewString()
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for _, extender := range policy.ExtenderConfigs {
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if len(extender.PrioritizeVerb) > 0 && extender.Weight <= 0 {
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validationErrors = append(validationErrors, fmt.Errorf("Priority for extender %s should have a positive weight applied to it", extender.URLPrefix))
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}
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if extender.BindVerb != "" {
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binders++
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}
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for _, resource := range extender.ManagedResources {
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errs := validateExtendedResourceName(resource.Name)
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if len(errs) != 0 {
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validationErrors = append(validationErrors, errs...)
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}
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if extenderManagedResources.Has(string(resource.Name)) {
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validationErrors = append(validationErrors, fmt.Errorf("Duplicate extender managed resource name %s", string(resource.Name)))
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}
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extenderManagedResources.Insert(string(resource.Name))
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}
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}
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if binders > 1 {
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validationErrors = append(validationErrors, fmt.Errorf("Only one extender can implement bind, found %v", binders))
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}
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return utilerrors.NewAggregate(validationErrors)
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}
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// validateExtendedResourceName checks whether the specified name is a valid
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// extended resource name.
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func validateExtendedResourceName(name v1.ResourceName) []error {
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var validationErrors []error
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for _, msg := range validation.IsQualifiedName(string(name)) {
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validationErrors = append(validationErrors, errors.New(msg))
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}
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if len(validationErrors) != 0 {
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return validationErrors
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}
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if !v1helper.IsExtendedResourceName(name) {
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validationErrors = append(validationErrors, fmt.Errorf("%s is an invalid extended resource name", name))
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}
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return validationErrors
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}
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