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Signed-off-by: wangjianyu.wjy <wangjianyu.wjy@alibaba-inc.com>
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203 changes: 203 additions & 0 deletions
203
pkg/koordlet/statesinformer/impl/states_pod_resources.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| /* | ||
| Copyright 2022 The Koordinator 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 impl | ||
|
|
||
| import ( | ||
| "context" | ||
| "net" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "google.golang.org/grpc" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/client-go/tools/cache" | ||
| "k8s.io/klog/v2" | ||
| podresourcesapi "k8s.io/kubelet/pkg/apis/podresources/v1" | ||
|
|
||
| "github.com/koordinator-sh/koordinator/apis/extension" | ||
| schedulingv1alpha1 "github.com/koordinator-sh/koordinator/apis/scheduling/v1alpha1" | ||
| "github.com/koordinator-sh/koordinator/pkg/features" | ||
| "github.com/koordinator-sh/koordinator/pkg/koordlet/util/kubelet" | ||
| "github.com/koordinator-sh/koordinator/pkg/koordlet/util/system" | ||
| "github.com/koordinator-sh/koordinator/pkg/util" | ||
| ) | ||
|
|
||
| const ( | ||
| podResourcesInformerName PluginName = "podResourcesInformer" | ||
| ) | ||
|
|
||
| var ( | ||
| _ podresourcesapi.PodResourcesListerServer = &podResourcesServer{} | ||
| ) | ||
|
|
||
| type podResourcesInformer struct { | ||
| config *Config | ||
| nodeInformer *nodeInformer | ||
| resourceServer podresourcesapi.PodResourcesListerServer | ||
| } | ||
|
|
||
| func newPodResourcesInformer() *podResourcesInformer { | ||
| return &podResourcesInformer{} | ||
| } | ||
|
|
||
| func (s *podResourcesInformer) Setup(ctx *PluginOption, states *PluginState) { | ||
| s.config = ctx.config | ||
|
|
||
| nodeInformerIf := states.informerPlugins[nodeInformerName] | ||
| nodeInformer, ok := nodeInformerIf.(*nodeInformer) | ||
| if !ok { | ||
| klog.Fatalf("node informer format error") | ||
| } | ||
| s.nodeInformer = nodeInformer | ||
| } | ||
|
|
||
| func (s *podResourcesInformer) Start(stopCh <-chan struct{}) { | ||
| if !features.DefaultKoordletFeatureGate.Enabled(features.PodResourcesProxy) { | ||
| return | ||
| } | ||
| klog.V(2).Infof("starting pod resources informer") | ||
| if !cache.WaitForCacheSync(stopCh, s.nodeInformer.HasSynced) { | ||
| klog.Fatalf("timed out waiting for node caches to sync") | ||
| } | ||
| stub, err := newKubeletStubFromConfig(s.nodeInformer.GetNode(), s.config) | ||
| if err != nil { | ||
| klog.Fatalf("create kubelet stub, %v", err) | ||
| } | ||
| resourceClient, err := kubelet.GetResourceClient("") | ||
| if err != nil { | ||
| klog.Fatalf("create resource client, %v", err) | ||
| } | ||
| s.resourceServer = &podResourcesServer{ | ||
| kubeletStub: stub, | ||
| podResourceClient: resourceClient, | ||
| } | ||
| err = s.startServer(stopCh) | ||
| if err != nil { | ||
| klog.Fatalf("start grpc server, %v", err) | ||
| } | ||
| } | ||
|
|
||
| func (s *podResourcesInformer) startServer(stopCh <-chan struct{}) error { | ||
| grpcServerFullSocketPath := filepath.Join(system.Conf.PodResourcesProxyPath, "kubelet.sock") | ||
| err := cleanup(grpcServerFullSocketPath) | ||
| if err != nil { | ||
| klog.Errorf("failed to cleanup %s: %s", grpcServerFullSocketPath, err.Error()) | ||
| return err | ||
| } | ||
| sock, err := net.Listen("unix", grpcServerFullSocketPath) | ||
| if err != nil { | ||
| klog.Errorf("failed to listen: %s", err.Error()) | ||
| return err | ||
| } | ||
| server := grpc.NewServer() | ||
| podresourcesapi.RegisterPodResourcesListerServer(server, s.resourceServer) | ||
| klog.Infof("Starting GRPC server, grpcServerSocketFullPath: %s", grpcServerFullSocketPath) | ||
| go func() { | ||
| err := server.Serve(sock) | ||
| if err != nil { | ||
| server.Stop() | ||
| klog.Fatalf("pod resources proxy exited with error %s", err.Error()) | ||
| } | ||
| }() | ||
| klog.V(2).Infof("pod resources proxy started") | ||
| <-stopCh | ||
| server.GracefulStop() | ||
| return nil | ||
| } | ||
|
|
||
| func cleanup(grpcServerSocketFullPath string) error { | ||
| if err := os.Remove(grpcServerSocketFullPath); err != nil && !os.IsNotExist(err) { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (s *podResourcesInformer) HasSynced() bool { | ||
| return true | ||
| } | ||
|
|
||
| type podResourcesServer struct { | ||
| podResourceClient podresourcesapi.PodResourcesListerClient | ||
| kubeletStub KubeletStub | ||
| } | ||
|
|
||
| func (p *podResourcesServer) List(ctx context.Context, request *podresourcesapi.ListPodResourcesRequest) (*podresourcesapi.ListPodResourcesResponse, error) { | ||
| response, err := p.podResourceClient.List(ctx, request) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| allPods, err := p.kubeletStub.GetAllPods() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| fillPodDevicesAllocatedByKoord(response, &allPods) | ||
| return response, nil | ||
| } | ||
|
|
||
| func fillPodDevicesAllocatedByKoord(response *podresourcesapi.ListPodResourcesResponse, allPods *corev1.PodList) { | ||
| deviceTypeToResourceName := map[schedulingv1alpha1.DeviceType]string{ | ||
| schedulingv1alpha1.GPU: string(extension.ResourceNvidiaGPU), | ||
| schedulingv1alpha1.RDMA: string(extension.ResourceRDMA), | ||
| } | ||
|
|
||
| podsMap := make(map[string]*corev1.Pod, len(allPods.Items)) | ||
| for _, item := range allPods.Items { | ||
| podsMap[util.GetNamespacedName(item.Namespace, item.Name)] = &item | ||
| } | ||
|
|
||
| for _, podResource := range response.PodResources { | ||
| if podResource == nil || len(podResource.Containers) == 0 { | ||
| continue | ||
| } | ||
| pod, ok := podsMap[util.GetNamespacedName(podResource.Namespace, podResource.Name)] | ||
| if !ok { | ||
| continue | ||
| } | ||
| deviceAllocations, err := extension.GetDeviceAllocations(pod.Annotations) | ||
| if err != nil || deviceAllocations == nil { | ||
| continue | ||
| } | ||
|
|
||
| for deviceType, deviceAllocation := range deviceAllocations { | ||
| var deviceIDs []string | ||
| for _, device := range deviceAllocation { | ||
| deviceIDs = append(deviceIDs, device.ID) | ||
| } | ||
| podResource.Containers[0].Devices = append(podResource.Containers[0].Devices, &podresourcesapi.ContainerDevices{ | ||
| ResourceName: deviceTypeToResourceName[deviceType], | ||
| DeviceIds: deviceIDs, | ||
| }) | ||
| } | ||
| break | ||
| } | ||
| } | ||
|
|
||
| func (p *podResourcesServer) GetAllocatableResources(ctx context.Context, request *podresourcesapi.AllocatableResourcesRequest) (*podresourcesapi.AllocatableResourcesResponse, error) { | ||
| response, err := p.podResourceClient.GetAllocatableResources(ctx, request) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return response, nil | ||
| } | ||
|
|
||
| func (p *podResourcesServer) Get(ctx context.Context, request *podresourcesapi.GetPodResourcesRequest) (*podresourcesapi.GetPodResourcesResponse, error) { | ||
| response, err := p.podResourceClient.Get(ctx, request) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return response, err | ||
| } |
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