23abdab2b7
Consume in the static policy the cpu manager policy options from the cpumanager instance. Validate in the none policy if any option is given, and fail if so - this is almost surely a configuration mistake. Add new cpumanager.Options type to hold the options and translate from user arguments to flags. Co-authored-by: Swati Sehgal <swsehgal@redhat.com> Signed-off-by: Francesco Romani <fromani@redhat.com>
77 lines
2.4 KiB
Go
77 lines
2.4 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 cpumanager
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import (
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"fmt"
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"k8s.io/api/core/v1"
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"k8s.io/klog/v2"
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"k8s.io/kubernetes/pkg/kubelet/cm/cpumanager/state"
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"k8s.io/kubernetes/pkg/kubelet/cm/cpuset"
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"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
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)
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type nonePolicy struct{}
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var _ Policy = &nonePolicy{}
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// PolicyNone name of none policy
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const PolicyNone policyName = "none"
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// NewNonePolicy returns a cpuset manager policy that does nothing
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func NewNonePolicy(cpuPolicyOptions map[string]string) (Policy, error) {
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if len(cpuPolicyOptions) > 0 {
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return nil, fmt.Errorf("None policy: received unsupported options=%v", cpuPolicyOptions)
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}
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return &nonePolicy{}, nil
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}
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func (p *nonePolicy) Name() string {
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return string(PolicyNone)
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}
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func (p *nonePolicy) Start(s state.State) error {
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klog.InfoS("None policy: Start")
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return nil
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}
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func (p *nonePolicy) Allocate(s state.State, pod *v1.Pod, container *v1.Container) error {
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return nil
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}
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func (p *nonePolicy) RemoveContainer(s state.State, podUID string, containerName string) error {
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return nil
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}
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func (p *nonePolicy) GetTopologyHints(s state.State, pod *v1.Pod, container *v1.Container) map[string][]topologymanager.TopologyHint {
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return nil
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}
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func (p *nonePolicy) GetPodTopologyHints(s state.State, pod *v1.Pod) map[string][]topologymanager.TopologyHint {
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return nil
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}
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// Assignable CPUs are the ones that can be exclusively allocated to pods that meet the exclusivity requirement
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// (ie guaranteed QoS class and integral CPU request).
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// Assignability of CPUs as a concept is only applicable in case of static policy i.e. scenarios where workloads
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// CAN get exclusive access to core(s).
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// Hence, we return empty set here: no cpus are assignable according to above definition with this policy.
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func (p *nonePolicy) GetAllocatableCPUs(m state.State) cpuset.CPUSet {
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return cpuset.NewCPUSet()
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}
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