| // +build windows |
| |
| /* |
| Copyright 2017 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 dockershim |
| |
| import ( |
| "context" |
| "time" |
| |
| runtimeapi "k8s.io/kubernetes/pkg/kubelet/apis/cri/runtime/v1alpha2" |
| ) |
| |
| // ContainerStats returns stats for a container stats request based on container id. |
| func (ds *dockerService) ContainerStats(_ context.Context, r *runtimeapi.ContainerStatsRequest) (*runtimeapi.ContainerStatsResponse, error) { |
| stats, err := ds.getContainerStats(r.ContainerId) |
| if err != nil { |
| return nil, err |
| } |
| return &runtimeapi.ContainerStatsResponse{Stats: stats}, nil |
| } |
| |
| // ListContainerStats returns stats for a list container stats request based on a filter. |
| func (ds *dockerService) ListContainerStats(ctx context.Context, r *runtimeapi.ListContainerStatsRequest) (*runtimeapi.ListContainerStatsResponse, error) { |
| containerStatsFilter := r.GetFilter() |
| filter := &runtimeapi.ContainerFilter{} |
| |
| if containerStatsFilter != nil { |
| filter.Id = containerStatsFilter.Id |
| filter.PodSandboxId = containerStatsFilter.PodSandboxId |
| filter.LabelSelector = containerStatsFilter.LabelSelector |
| } |
| |
| listResp, err := ds.ListContainers(ctx, &runtimeapi.ListContainersRequest{Filter: filter}) |
| if err != nil { |
| return nil, err |
| } |
| |
| var stats []*runtimeapi.ContainerStats |
| for _, container := range listResp.Containers { |
| containerStats, err := ds.getContainerStats(container.Id) |
| if err != nil { |
| return nil, err |
| } |
| |
| stats = append(stats, containerStats) |
| } |
| |
| return &runtimeapi.ListContainerStatsResponse{Stats: stats}, nil |
| } |
| |
| func (ds *dockerService) getContainerStats(containerID string) (*runtimeapi.ContainerStats, error) { |
| info, err := ds.client.Info() |
| if err != nil { |
| return nil, err |
| } |
| |
| statsJSON, err := ds.client.GetContainerStats(containerID) |
| if err != nil { |
| return nil, err |
| } |
| |
| containerJSON, err := ds.client.InspectContainerWithSize(containerID) |
| if err != nil { |
| return nil, err |
| } |
| |
| statusResp, err := ds.ContainerStatus(context.Background(), &runtimeapi.ContainerStatusRequest{ContainerId: containerID}) |
| if err != nil { |
| return nil, err |
| } |
| status := statusResp.GetStatus() |
| |
| dockerStats := statsJSON.Stats |
| timestamp := time.Now().UnixNano() |
| containerStats := &runtimeapi.ContainerStats{ |
| Attributes: &runtimeapi.ContainerAttributes{ |
| Id: containerID, |
| Metadata: status.Metadata, |
| Labels: status.Labels, |
| Annotations: status.Annotations, |
| }, |
| Cpu: &runtimeapi.CpuUsage{ |
| Timestamp: timestamp, |
| // have to multiply cpu usage by 100 since docker stats units is in 100's of nano seconds for Windows |
| // see https://github.com/moby/moby/blob/v1.13.1/api/types/stats.go#L22 |
| UsageCoreNanoSeconds: &runtimeapi.UInt64Value{Value: dockerStats.CPUStats.CPUUsage.TotalUsage * 100}, |
| }, |
| Memory: &runtimeapi.MemoryUsage{ |
| Timestamp: timestamp, |
| WorkingSetBytes: &runtimeapi.UInt64Value{Value: dockerStats.MemoryStats.PrivateWorkingSet}, |
| }, |
| WritableLayer: &runtimeapi.FilesystemUsage{ |
| Timestamp: timestamp, |
| FsId: &runtimeapi.FilesystemIdentifier{Mountpoint: info.DockerRootDir}, |
| UsedBytes: &runtimeapi.UInt64Value{Value: uint64(*containerJSON.SizeRw)}, |
| }, |
| } |
| return containerStats, nil |
| } |