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resourcequota.go
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resourcequota.go
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// Copyright (c) 2021 Tigera, Inc. All rights reserved.
// 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 resourcequota
import (
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
const (
CalicoCriticalResourceQuotaName = "calico-critical-pods"
TigeraCriticalResourceQuotaName = "tigera-critical-pods"
)
// ResourceQuotaForPriorityClassScope creates a ResourceQuota in a specified namespace and
// selects the priority classes provides. This allows pods with the specified pods to be scheduled
// This doesn't guarantee that a pod will be scheduled as Kubernetes will also check to ensure
// that other resource quota constraints in the namespace are satisfied.
func ResourceQuotaForPriorityClassScope(name, namespace string, priorityClasses []string) *corev1.ResourceQuota {
return &corev1.ResourceQuota{
TypeMeta: metav1.TypeMeta{
APIVersion: "v1",
Kind: "ResourceQuota",
},
ObjectMeta: metav1.ObjectMeta{
Namespace: namespace,
Name: name,
},
Spec: corev1.ResourceQuotaSpec{
ScopeSelector: &corev1.ScopeSelector{
MatchExpressions: []corev1.ScopedResourceSelectorRequirement{
{
ScopeName: corev1.ResourceQuotaScopePriorityClass,
Operator: corev1.ScopeSelectorOpIn,
Values: priorityClasses,
},
},
},
},
}
}