fake_kuberuntime_manager.go

Documentation: k8s.io/kubernetes/pkg/kubelet/kuberuntime

     1  /*
     2  Copyright 2016 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 kuberuntime
    18  
    19  import (
    20  	"context"
    21  	"net/http"
    22  	"time"
    23  
    24  	cadvisorapi "github.com/google/cadvisor/info/v1"
    25  	"go.opentelemetry.io/otel/trace"
    26  	v1 "k8s.io/api/core/v1"
    27  	"k8s.io/apimachinery/pkg/api/resource"
    28  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    29  	"k8s.io/apimachinery/pkg/types"
    30  	"k8s.io/client-go/tools/record"
    31  	"k8s.io/client-go/util/flowcontrol"
    32  	"k8s.io/component-base/logs/logreduction"
    33  	internalapi "k8s.io/cri-api/pkg/apis"
    34  	"k8s.io/kubernetes/pkg/credentialprovider"
    35  	"k8s.io/kubernetes/pkg/kubelet/cm"
    36  	kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
    37  	"k8s.io/kubernetes/pkg/kubelet/images"
    38  	"k8s.io/kubernetes/pkg/kubelet/lifecycle"
    39  	"k8s.io/kubernetes/pkg/kubelet/logs"
    40  	proberesults "k8s.io/kubernetes/pkg/kubelet/prober/results"
    41  	utilpointer "k8s.io/utils/pointer"
    42  )
    43  
    44  const (
    45  	fakeSeccompProfileRoot = "/fakeSeccompProfileRoot"
    46  
    47  	fakeNodeAllocatableMemory = "32Gi"
    48  	fakeNodeAllocatableCPU    = "16"
    49  
    50  	fakePodLogsDirectory = "/var/log/pods"
    51  )
    52  
    53  type fakeHTTP struct {
    54  	req *http.Request
    55  	err error
    56  }
    57  
    58  func (f *fakeHTTP) Do(req *http.Request) (*http.Response, error) {
    59  	f.req = req
    60  	return nil, f.err
    61  }
    62  
    63  type fakePodStateProvider struct {
    64  	terminated map[types.UID]struct{}
    65  	removed    map[types.UID]struct{}
    66  }
    67  
    68  func newFakePodStateProvider() *fakePodStateProvider {
    69  	return &fakePodStateProvider{
    70  		terminated: make(map[types.UID]struct{}),
    71  		removed:    make(map[types.UID]struct{}),
    72  	}
    73  }
    74  
    75  func (f *fakePodStateProvider) IsPodTerminationRequested(uid types.UID) bool {
    76  	_, found := f.removed[uid]
    77  	return found
    78  }
    79  
    80  func (f *fakePodStateProvider) ShouldPodRuntimeBeRemoved(uid types.UID) bool {
    81  	_, found := f.terminated[uid]
    82  	return found
    83  }
    84  
    85  func (f *fakePodStateProvider) ShouldPodContentBeRemoved(uid types.UID) bool {
    86  	_, found := f.removed[uid]
    87  	return found
    88  }
    89  
    90  type fakePodPullingTimeRecorder struct{}
    91  
    92  func (f *fakePodPullingTimeRecorder) RecordImageStartedPulling(podUID types.UID) {}
    93  
    94  func (f *fakePodPullingTimeRecorder) RecordImageFinishedPulling(podUID types.UID) {}
    95  
    96  func newFakeKubeRuntimeManager(runtimeService internalapi.RuntimeService, imageService internalapi.ImageManagerService, machineInfo *cadvisorapi.MachineInfo, osInterface kubecontainer.OSInterface, runtimeHelper kubecontainer.RuntimeHelper, keyring credentialprovider.DockerKeyring, tracer trace.Tracer) (*kubeGenericRuntimeManager, error) {
    97  	ctx := context.Background()
    98  	recorder := &record.FakeRecorder{}
    99  	logManager, err := logs.NewContainerLogManager(runtimeService, osInterface, "1", 2, 10, metav1.Duration{Duration: 10 * time.Second})
   100  	if err != nil {
   101  		return nil, err
   102  	}
   103  	kubeRuntimeManager := &kubeGenericRuntimeManager{
   104  		recorder:               recorder,
   105  		cpuCFSQuota:            false,
   106  		cpuCFSQuotaPeriod:      metav1.Duration{Duration: time.Millisecond * 100},
   107  		livenessManager:        proberesults.NewManager(),
   108  		startupManager:         proberesults.NewManager(),
   109  		machineInfo:            machineInfo,
   110  		osInterface:            osInterface,
   111  		runtimeHelper:          runtimeHelper,
   112  		runtimeService:         runtimeService,
   113  		imageService:           imageService,
   114  		keyring:                keyring,
   115  		seccompProfileRoot:     fakeSeccompProfileRoot,
   116  		internalLifecycle:      cm.NewFakeInternalContainerLifecycle(),
   117  		logReduction:           logreduction.NewLogReduction(identicalErrorDelay),
   118  		logManager:             logManager,
   119  		memoryThrottlingFactor: 0.9,
   120  		podLogsDirectory:       fakePodLogsDirectory,
   121  	}
   122  
   123  	typedVersion, err := runtimeService.Version(ctx, kubeRuntimeAPIVersion)
   124  	if err != nil {
   125  		return nil, err
   126  	}
   127  
   128  	podStateProvider := newFakePodStateProvider()
   129  	kubeRuntimeManager.containerGC = newContainerGC(runtimeService, podStateProvider, kubeRuntimeManager, tracer)
   130  	kubeRuntimeManager.podStateProvider = podStateProvider
   131  	kubeRuntimeManager.runtimeName = typedVersion.RuntimeName
   132  	kubeRuntimeManager.imagePuller = images.NewImageManager(
   133  		kubecontainer.FilterEventRecorder(recorder),
   134  		kubeRuntimeManager,
   135  		flowcontrol.NewBackOff(time.Second, 300*time.Second),
   136  		false,
   137  		utilpointer.Int32Ptr(0), // No limit on max parallel image pulls,
   138  		0,                       // Disable image pull throttling by setting QPS to 0,
   139  		0,
   140  		&fakePodPullingTimeRecorder{},
   141  	)
   142  	kubeRuntimeManager.runner = lifecycle.NewHandlerRunner(
   143  		&fakeHTTP{},
   144  		kubeRuntimeManager,
   145  		kubeRuntimeManager,
   146  		recorder)
   147  
   148  	kubeRuntimeManager.getNodeAllocatable = func() v1.ResourceList {
   149  		return v1.ResourceList{
   150  			v1.ResourceMemory: resource.MustParse(fakeNodeAllocatableMemory),
   151  			v1.ResourceCPU:    resource.MustParse(fakeNodeAllocatableCPU),
   152  		}
   153  	}
   154  
   155  	return kubeRuntimeManager, nil
   156  }
   157
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