62 lines
1.7 KiB
Go
62 lines
1.7 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 bandwidth
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/api/resource"
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)
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var minRsrc = resource.MustParse("1k")
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var maxRsrc = resource.MustParse("1P")
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func validateBandwidthIsReasonable(rsrc *resource.Quantity) error {
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if rsrc.Value() < minRsrc.Value() {
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return fmt.Errorf("resource is unreasonably small (< 1kbit)")
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}
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if rsrc.Value() > maxRsrc.Value() {
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return fmt.Errorf("resoruce is unreasonably large (> 1Pbit)")
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}
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return nil
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}
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func ExtractPodBandwidthResources(podAnnotations map[string]string) (ingress, egress *resource.Quantity, err error) {
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str, found := podAnnotations["kubernetes.io/ingress-bandwidth"]
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if found {
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ingressValue, err := resource.ParseQuantity(str)
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if err != nil {
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return nil, nil, err
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}
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ingress = &ingressValue
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if err := validateBandwidthIsReasonable(ingress); err != nil {
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return nil, nil, err
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}
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}
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str, found = podAnnotations["kubernetes.io/egress-bandwidth"]
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if found {
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egressValue, err := resource.ParseQuantity(str)
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if err != nil {
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return nil, nil, err
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}
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egress = &egressValue
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if err := validateBandwidthIsReasonable(egress); err != nil {
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return nil, nil, err
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}
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}
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return ingress, egress, nil
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}
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