mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-11-04 07:49:35 +00:00
99 lines
3.6 KiB
Go
99 lines
3.6 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes 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 podresources
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
utilfeature "k8s.io/apiserver/pkg/util/feature"
|
|
kubefeatures "k8s.io/kubernetes/pkg/features"
|
|
"k8s.io/kubernetes/pkg/kubelet/metrics"
|
|
|
|
"k8s.io/kubelet/pkg/apis/podresources/v1"
|
|
)
|
|
|
|
// podResourcesServerV1alpha1 implements PodResourcesListerServer
|
|
type v1PodResourcesServer struct {
|
|
podsProvider PodsProvider
|
|
devicesProvider DevicesProvider
|
|
cpusProvider CPUsProvider
|
|
memoryProvider MemoryProvider
|
|
}
|
|
|
|
// NewV1PodResourcesServer returns a PodResourcesListerServer which lists pods provided by the PodsProvider
|
|
// with device information provided by the DevicesProvider
|
|
func NewV1PodResourcesServer(podsProvider PodsProvider, devicesProvider DevicesProvider, cpusProvider CPUsProvider, memoryProvider MemoryProvider) v1.PodResourcesListerServer {
|
|
return &v1PodResourcesServer{
|
|
podsProvider: podsProvider,
|
|
devicesProvider: devicesProvider,
|
|
cpusProvider: cpusProvider,
|
|
memoryProvider: memoryProvider,
|
|
}
|
|
}
|
|
|
|
// List returns information about the resources assigned to pods on the node
|
|
func (p *v1PodResourcesServer) List(ctx context.Context, req *v1.ListPodResourcesRequest) (*v1.ListPodResourcesResponse, error) {
|
|
metrics.PodResourcesEndpointRequestsTotalCount.WithLabelValues("v1").Inc()
|
|
metrics.PodResourcesEndpointRequestsListCount.WithLabelValues("v1").Inc()
|
|
|
|
pods := p.podsProvider.GetPods()
|
|
podResources := make([]*v1.PodResources, len(pods))
|
|
p.devicesProvider.UpdateAllocatedDevices()
|
|
|
|
for i, pod := range pods {
|
|
pRes := v1.PodResources{
|
|
Name: pod.Name,
|
|
Namespace: pod.Namespace,
|
|
Containers: make([]*v1.ContainerResources, len(pod.Spec.Containers)),
|
|
}
|
|
|
|
for j, container := range pod.Spec.Containers {
|
|
pRes.Containers[j] = &v1.ContainerResources{
|
|
Name: container.Name,
|
|
Devices: p.devicesProvider.GetDevices(string(pod.UID), container.Name),
|
|
CpuIds: p.cpusProvider.GetCPUs(string(pod.UID), container.Name),
|
|
Memory: p.memoryProvider.GetMemory(string(pod.UID), container.Name),
|
|
}
|
|
}
|
|
podResources[i] = &pRes
|
|
}
|
|
|
|
return &v1.ListPodResourcesResponse{
|
|
PodResources: podResources,
|
|
}, nil
|
|
}
|
|
|
|
// GetAllocatableResources returns information about all the resources known by the server - this more like the capacity, not like the current amount of free resources.
|
|
func (p *v1PodResourcesServer) GetAllocatableResources(ctx context.Context, req *v1.AllocatableResourcesRequest) (*v1.AllocatableResourcesResponse, error) {
|
|
metrics.PodResourcesEndpointRequestsTotalCount.WithLabelValues("v1").Inc()
|
|
metrics.PodResourcesEndpointRequestsGetAllocatableCount.WithLabelValues("v1").Inc()
|
|
|
|
if !utilfeature.DefaultFeatureGate.Enabled(kubefeatures.KubeletPodResourcesGetAllocatable) {
|
|
metrics.PodResourcesEndpointErrorsGetAllocatableCount.WithLabelValues("v1").Inc()
|
|
return nil, fmt.Errorf("Pod Resources API GetAllocatableResources disabled")
|
|
}
|
|
|
|
metrics.PodResourcesEndpointRequestsTotalCount.WithLabelValues("v1").Inc()
|
|
|
|
return &v1.AllocatableResourcesResponse{
|
|
Devices: p.devicesProvider.GetAllocatableDevices(),
|
|
CpuIds: p.cpusProvider.GetAllocatableCPUs(),
|
|
Memory: p.memoryProvider.GetAllocatableMemory(),
|
|
}, nil
|
|
}
|