fake_memory_manager.go

Documentation: k8s.io/kubernetes/pkg/kubelet/cm/memorymanager

     1  /*
     2  Copyright 2020 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package memorymanager
    18  
    19  import (
    20  	v1 "k8s.io/api/core/v1"
    21  	"k8s.io/apimachinery/pkg/util/sets"
    22  	"k8s.io/klog/v2"
    23  	"k8s.io/kubernetes/pkg/kubelet/cm/containermap"
    24  	"k8s.io/kubernetes/pkg/kubelet/cm/memorymanager/state"
    25  	"k8s.io/kubernetes/pkg/kubelet/cm/topologymanager"
    26  	"k8s.io/kubernetes/pkg/kubelet/config"
    27  	"k8s.io/kubernetes/pkg/kubelet/status"
    28  )
    29  
    30  type fakeManager struct {
    31  	state state.State
    32  }
    33  
    34  func (m *fakeManager) Start(activePods ActivePodsFunc, sourcesReady config.SourcesReady, podStatusProvider status.PodStatusProvider, containerRuntime runtimeService, initialContainers containermap.ContainerMap) error {
    35  	klog.InfoS("Start()")
    36  	return nil
    37  }
    38  
    39  func (m *fakeManager) Policy() Policy {
    40  	klog.InfoS("Policy()")
    41  	return NewPolicyNone()
    42  }
    43  
    44  func (m *fakeManager) Allocate(pod *v1.Pod, container *v1.Container) error {
    45  	klog.InfoS("Allocate", "pod", klog.KObj(pod), "containerName", container.Name)
    46  	return nil
    47  }
    48  
    49  func (m *fakeManager) AddContainer(pod *v1.Pod, container *v1.Container, containerID string) {
    50  	klog.InfoS("Add container", "pod", klog.KObj(pod), "containerName", container.Name, "containerID", containerID)
    51  }
    52  
    53  func (m *fakeManager) GetMemoryNUMANodes(pod *v1.Pod, container *v1.Container) sets.Set[int] {
    54  	klog.InfoS("Get MemoryNUMANodes", "pod", klog.KObj(pod), "containerName", container.Name)
    55  	return nil
    56  }
    57  
    58  func (m *fakeManager) RemoveContainer(containerID string) error {
    59  	klog.InfoS("RemoveContainer", "containerID", containerID)
    60  	return nil
    61  }
    62  
    63  func (m *fakeManager) GetTopologyHints(pod *v1.Pod, container *v1.Container) map[string][]topologymanager.TopologyHint {
    64  	klog.InfoS("Get Topology Hints", "pod", klog.KObj(pod), "containerName", container.Name)
    65  	return map[string][]topologymanager.TopologyHint{}
    66  }
    67  
    68  func (m *fakeManager) GetPodTopologyHints(pod *v1.Pod) map[string][]topologymanager.TopologyHint {
    69  	klog.InfoS("Get Pod Topology Hints", "pod", klog.KObj(pod))
    70  	return map[string][]topologymanager.TopologyHint{}
    71  }
    72  
    73  func (m *fakeManager) State() state.Reader {
    74  	return m.state
    75  }
    76  
    77  // GetAllocatableMemory returns the amount of allocatable memory for each NUMA node
    78  func (m *fakeManager) GetAllocatableMemory() []state.Block {
    79  	klog.InfoS("Get Allocatable Memory")
    80  	return []state.Block{}
    81  }
    82  
    83  // GetMemory returns the memory allocated by a container from NUMA nodes
    84  func (m *fakeManager) GetMemory(podUID, containerName string) []state.Block {
    85  	klog.InfoS("Get Memory", "podUID", podUID, "containerName", containerName)
    86  	return []state.Block{}
    87  }
    88  
    89  // NewFakeManager creates empty/fake memory manager
    90  func NewFakeManager() Manager {
    91  	return &fakeManager{
    92  		state: state.NewMemoryState(),
    93  	}
    94  }
    95
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