d95464645c
This abstraction moves the responsibility of merging topology hints to the individual policies themselves. As part of this, it removes the CanAdmitPodResult() API from the policy abstraction, and rolls it into a second return value from Merge()
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
/*
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Copyright 2019 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 topologymanager
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import (
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"k8s.io/kubernetes/pkg/kubelet/lifecycle"
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)
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type singleNumaNodePolicy struct {
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//List of NUMA Nodes available on the underlying machine
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numaNodes []int
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}
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var _ Policy = &singleNumaNodePolicy{}
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// PolicySingleNumaNode policy name.
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const PolicySingleNumaNode string = "single-numa-node"
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// NewSingleNumaNodePolicy returns single-numa-node policy.
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func NewSingleNumaNodePolicy(numaNodes []int) Policy {
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return &singleNumaNodePolicy{numaNodes: numaNodes}
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}
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func (p *singleNumaNodePolicy) Name() string {
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return PolicySingleNumaNode
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}
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func (p *singleNumaNodePolicy) canAdmitPodResult(hint *TopologyHint) lifecycle.PodAdmitResult {
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if !hint.Preferred {
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return lifecycle.PodAdmitResult{
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Admit: false,
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Reason: "Topology Affinity Error",
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Message: "Resources cannot be allocated with Topology Locality",
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}
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}
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return lifecycle.PodAdmitResult{
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Admit: true,
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}
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}
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func (p *singleNumaNodePolicy) Merge(providersHints []map[string][]TopologyHint) (TopologyHint, lifecycle.PodAdmitResult) {
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hint := mergeProvidersHints(p, p.numaNodes, providersHints)
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admit := p.canAdmitPodResult(&hint)
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return hint, admit
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}
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