56 lines
1.8 KiB
Go
56 lines
1.8 KiB
Go
/*
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Copyright 2017 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 nodegroupset
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import (
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"k8s.io/autoscaler/cluster-autoscaler/cloudprovider"
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"k8s.io/autoscaler/cluster-autoscaler/utils/errors"
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schedulercache "k8s.io/kubernetes/pkg/scheduler/cache"
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"github.com/golang/glog"
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)
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// FindSimilarNodeGroups returns a list of NodeGroups similar to the given one.
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// Two groups are similar if the NodeInfos for them compare equal using IsNodeInfoSimilar.
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func FindSimilarNodeGroups(nodeGroup cloudprovider.NodeGroup, cloudProvider cloudprovider.CloudProvider,
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nodeInfosForGroups map[string]*schedulercache.NodeInfo) ([]cloudprovider.NodeGroup, errors.AutoscalerError) {
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result := []cloudprovider.NodeGroup{}
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nodeGroupId := nodeGroup.Id()
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nodeInfo, found := nodeInfosForGroups[nodeGroupId]
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if !found {
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return []cloudprovider.NodeGroup{}, errors.NewAutoscalerError(
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errors.InternalError,
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"failed to find template node for node group %s",
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nodeGroupId)
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}
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for _, ng := range cloudProvider.NodeGroups() {
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ngId := ng.Id()
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if ngId == nodeGroupId {
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continue
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}
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ngNodeInfo, found := nodeInfosForGroups[ngId]
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if !found {
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glog.Warningf("Failed to find nodeInfo for group %v", ngId)
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continue
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}
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if IsNodeInfoSimilar(nodeInfo, ngNodeInfo) {
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result = append(result, ng)
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}
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}
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return result, nil
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}
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