github.com/kubewharf/katalyst-core@v0.5.3/pkg/agent/orm/server/podresources/server_v1.go (about)

     1  /*
     2  Copyright 2022 The Katalyst 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 podresources
    18  
    19  import (
    20  	"context"
    21  
    22  	v1 "k8s.io/kubelet/pkg/apis/podresources/v1"
    23  	maputil "k8s.io/kubernetes/pkg/util/maps"
    24  
    25  	"github.com/kubewharf/katalyst-core/pkg/metrics"
    26  	"github.com/kubewharf/katalyst-core/pkg/util/native"
    27  )
    28  
    29  type v1PodResourcesServer struct {
    30  	podsProvider      PodsProvider
    31  	resourcesProvider ResourcesProvider
    32  	devicesProvider   DevicesProvider
    33  	emitter           metrics.MetricEmitter
    34  }
    35  
    36  func NewV1PodResourcesServer(
    37  	podsProvider PodsProvider,
    38  	resourcesProvider ResourcesProvider,
    39  	devicesProvider DevicesProvider,
    40  	emitter metrics.MetricEmitter,
    41  ) v1.PodResourcesListerServer {
    42  	return &v1PodResourcesServer{
    43  		podsProvider:      podsProvider,
    44  		resourcesProvider: resourcesProvider,
    45  		devicesProvider:   devicesProvider,
    46  		emitter:           emitter,
    47  	}
    48  }
    49  
    50  // List returns information about the resources assigned to pods on the node
    51  func (p *v1PodResourcesServer) List(ctx context.Context, req *v1.ListPodResourcesRequest) (*v1.ListPodResourcesResponse, error) {
    52  	pods := p.podsProvider.GetPods()
    53  	podResources := make([]*v1.PodResources, len(pods))
    54  
    55  	// sync pods resource before list
    56  	p.resourcesProvider.UpdateAllocatedResources()
    57  
    58  	devicesResources := p.getDevices()
    59  
    60  	for i, pod := range pods {
    61  		pRes := v1.PodResources{
    62  			Name:        pod.Name,
    63  			Namespace:   pod.Namespace,
    64  			Labels:      maputil.CopySS(pod.Labels),
    65  			Annotations: maputil.CopySS(pod.Annotations),
    66  			Containers:  make([]*v1.ContainerResources, len(pod.Spec.Containers)),
    67  		}
    68  
    69  		podKey := native.GenerateNamespaceNameKey(pod.Namespace, pod.Name)
    70  		podDevicesResources, ok := devicesResources[podKey]
    71  
    72  		for j, container := range pod.Spec.Containers {
    73  			pRes.Containers[j] = &v1.ContainerResources{
    74  				Name:      container.Name,
    75  				Resources: p.resourcesProvider.GetTopologyAwareResources(pod, &container),
    76  			}
    77  			if ok {
    78  				pRes.Containers[j].Devices = podDevicesResources[container.Name]
    79  			}
    80  		}
    81  		podResources[i] = &pRes
    82  	}
    83  
    84  	_ = p.emitter.StoreInt64(podResourcesList, 1, metrics.MetricTypeNameCount)
    85  	return &v1.ListPodResourcesResponse{
    86  		PodResources: podResources,
    87  	}, nil
    88  }
    89  
    90  func (p *v1PodResourcesServer) GetAllocatableResources(ctx context.Context, req *v1.AllocatableResourcesRequest) (*v1.AllocatableResourcesResponse, error) {
    91  	_ = p.emitter.StoreInt64(podResourceGetAllocatableResources, 1, metrics.MetricTypeNameCount)
    92  
    93  	return &v1.AllocatableResourcesResponse{
    94  		Resources: p.resourcesProvider.GetTopologyAwareAllocatableResources(),
    95  		Devices:   p.devicesProvider.GetAllocatableDevices(),
    96  	}, nil
    97  }
    98  
    99  func (p *v1PodResourcesServer) getDevices() map[string]map[string][]*v1.ContainerDevices {
   100  	res := make(map[string]map[string][]*v1.ContainerDevices)
   101  
   102  	podResources := p.devicesProvider.GetDevices()
   103  	if len(podResources) == 0 {
   104  		return nil
   105  	}
   106  	for _, podResource := range podResources {
   107  		key := native.GenerateNamespaceNameKey(podResource.Namespace, podResource.Name)
   108  		res[key] = make(map[string][]*v1.ContainerDevices)
   109  		for _, container := range podResource.Containers {
   110  			res[key][container.Name] = container.GetDevices()
   111  		}
   112  	}
   113  
   114  	return res
   115  }