kubernetes scope_container 源码
kubernetes scope_container 代码
文件路径：/pkg/kubelet/cm/topologymanager/scope_container.go
/*
Copyright 2020 The Kubernetes Authors.
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 topologymanager
import (
"k8s.io/api/core/v1"
"k8s.io/klog/v2"
"k8s.io/kubernetes/pkg/kubelet/cm/admission"
"k8s.io/kubernetes/pkg/kubelet/cm/containermap"
"k8s.io/kubernetes/pkg/kubelet/lifecycle"
)
type containerScope struct {
scope
}
// Ensure containerScope implements Scope interface
var _ Scope = &containerScope{}
// NewContainerScope returns a container scope.
func NewContainerScope(policy Policy) Scope {
return &containerScope{
scope{
name: containerTopologyScope,
podTopologyHints: podTopologyHints{},
policy: policy,
podMap: containermap.NewContainerMap(),
},
}
}
func (s *containerScope) Admit(pod *v1.Pod) lifecycle.PodAdmitResult {
// Exception - Policy : none
if s.policy.Name() == PolicyNone {
return s.admitPolicyNone(pod)
}
for _, container := range append(pod.Spec.InitContainers, pod.Spec.Containers...) {
bestHint, admit := s.calculateAffinity(pod, &container)
klog.InfoS("Best TopologyHint", "bestHint", bestHint, "pod", klog.KObj(pod), "containerName", container.Name)
if !admit {
return admission.GetPodAdmitResult(&TopologyAffinityError{})
}
klog.InfoS("Topology Affinity", "bestHint", bestHint, "pod", klog.KObj(pod), "containerName", container.Name)
s.setTopologyHints(string(pod.UID), container.Name, bestHint)
err := s.allocateAlignedResources(pod, &container)
if err != nil {
return admission.GetPodAdmitResult(err)
}
}
return admission.GetPodAdmitResult(nil)
}
func (s *containerScope) accumulateProvidersHints(pod *v1.Pod, container *v1.Container) []map[string][]TopologyHint {
var providersHints []map[string][]TopologyHint
for _, provider := range s.hintProviders {
// Get the TopologyHints for a Container from a provider.
hints := provider.GetTopologyHints(pod, container)
providersHints = append(providersHints, hints)
klog.InfoS("TopologyHints", "hints", hints, "pod", klog.KObj(pod), "containerName", container.Name)
}
return providersHints
}
func (s *containerScope) calculateAffinity(pod *v1.Pod, container *v1.Container) (TopologyHint, bool) {
providersHints := s.accumulateProvidersHints(pod, container)
bestHint, admit := s.policy.Merge(providersHints)
klog.InfoS("ContainerTopologyHint", "bestHint", bestHint)
return bestHint, admit
}
相关信息
相关文章
kubernetes fake_topology_manager 源码
kubernetes fake_topology_manager_test 源码
kubernetes policy_best_effort 源码
kubernetes policy_best_effort_test 源码
kubernetes policy_none_test 源码
kubernetes policy_restricted 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦