5eae7eb166
Implement CRI stats for dockershim using docker stats. This enables use of the summary api to get container metrics on Windows where CRI stats are enabled.
250 lines
9.0 KiB
Go
250 lines
9.0 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package remote
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import (
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"time"
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"golang.org/x/net/context"
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internalapi "k8s.io/kubernetes/pkg/kubelet/apis/cri"
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runtimeapi "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
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"k8s.io/kubernetes/pkg/kubelet/dockershim"
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utilexec "k8s.io/utils/exec"
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)
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// DockerService is the interface implement CRI remote service server.
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type DockerService interface {
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runtimeapi.RuntimeServiceServer
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runtimeapi.ImageServiceServer
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}
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// dockerService uses dockershim service to implement DockerService.
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// Notice that the contexts in the functions are not used now.
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// TODO(random-liu): Change the dockershim service to support context, and implement
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// internal services and remote services with the dockershim service.
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type dockerService struct {
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runtimeService internalapi.RuntimeService
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imageService internalapi.ImageManagerService
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}
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func NewDockerService(s dockershim.DockerService) DockerService {
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return &dockerService{runtimeService: s, imageService: s}
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}
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func (d *dockerService) Version(ctx context.Context, r *runtimeapi.VersionRequest) (*runtimeapi.VersionResponse, error) {
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return d.runtimeService.Version(r.Version)
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}
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func (d *dockerService) Status(ctx context.Context, r *runtimeapi.StatusRequest) (*runtimeapi.StatusResponse, error) {
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status, err := d.runtimeService.Status()
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if err != nil {
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return nil, err
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}
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return &runtimeapi.StatusResponse{Status: status}, nil
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}
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func (d *dockerService) RunPodSandbox(ctx context.Context, r *runtimeapi.RunPodSandboxRequest) (*runtimeapi.RunPodSandboxResponse, error) {
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podSandboxId, err := d.runtimeService.RunPodSandbox(r.GetConfig())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.RunPodSandboxResponse{PodSandboxId: podSandboxId}, nil
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}
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func (d *dockerService) StopPodSandbox(ctx context.Context, r *runtimeapi.StopPodSandboxRequest) (*runtimeapi.StopPodSandboxResponse, error) {
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err := d.runtimeService.StopPodSandbox(r.PodSandboxId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.StopPodSandboxResponse{}, nil
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}
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func (d *dockerService) RemovePodSandbox(ctx context.Context, r *runtimeapi.RemovePodSandboxRequest) (*runtimeapi.RemovePodSandboxResponse, error) {
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err := d.runtimeService.RemovePodSandbox(r.PodSandboxId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.RemovePodSandboxResponse{}, nil
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}
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func (d *dockerService) PodSandboxStatus(ctx context.Context, r *runtimeapi.PodSandboxStatusRequest) (*runtimeapi.PodSandboxStatusResponse, error) {
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podSandboxStatus, err := d.runtimeService.PodSandboxStatus(r.PodSandboxId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.PodSandboxStatusResponse{Status: podSandboxStatus}, nil
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}
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func (d *dockerService) ListPodSandbox(ctx context.Context, r *runtimeapi.ListPodSandboxRequest) (*runtimeapi.ListPodSandboxResponse, error) {
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items, err := d.runtimeService.ListPodSandbox(r.GetFilter())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ListPodSandboxResponse{Items: items}, nil
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}
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func (d *dockerService) CreateContainer(ctx context.Context, r *runtimeapi.CreateContainerRequest) (*runtimeapi.CreateContainerResponse, error) {
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containerId, err := d.runtimeService.CreateContainer(r.PodSandboxId, r.GetConfig(), r.GetSandboxConfig())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.CreateContainerResponse{ContainerId: containerId}, nil
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}
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func (d *dockerService) StartContainer(ctx context.Context, r *runtimeapi.StartContainerRequest) (*runtimeapi.StartContainerResponse, error) {
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err := d.runtimeService.StartContainer(r.ContainerId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.StartContainerResponse{}, nil
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}
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func (d *dockerService) StopContainer(ctx context.Context, r *runtimeapi.StopContainerRequest) (*runtimeapi.StopContainerResponse, error) {
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err := d.runtimeService.StopContainer(r.ContainerId, r.Timeout)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.StopContainerResponse{}, nil
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}
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func (d *dockerService) RemoveContainer(ctx context.Context, r *runtimeapi.RemoveContainerRequest) (*runtimeapi.RemoveContainerResponse, error) {
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err := d.runtimeService.RemoveContainer(r.ContainerId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.RemoveContainerResponse{}, nil
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}
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func (d *dockerService) ListContainers(ctx context.Context, r *runtimeapi.ListContainersRequest) (*runtimeapi.ListContainersResponse, error) {
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containers, err := d.runtimeService.ListContainers(r.GetFilter())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ListContainersResponse{Containers: containers}, nil
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}
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func (d *dockerService) ContainerStatus(ctx context.Context, r *runtimeapi.ContainerStatusRequest) (*runtimeapi.ContainerStatusResponse, error) {
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status, err := d.runtimeService.ContainerStatus(r.ContainerId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ContainerStatusResponse{Status: status}, nil
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}
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func (d *dockerService) UpdateContainerResources(ctx context.Context, r *runtimeapi.UpdateContainerResourcesRequest) (*runtimeapi.UpdateContainerResourcesResponse, error) {
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err := d.runtimeService.UpdateContainerResources(r.ContainerId, r.Linux)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.UpdateContainerResourcesResponse{}, nil
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}
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func (d *dockerService) ExecSync(ctx context.Context, r *runtimeapi.ExecSyncRequest) (*runtimeapi.ExecSyncResponse, error) {
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stdout, stderr, err := d.runtimeService.ExecSync(r.ContainerId, r.Cmd, time.Duration(r.Timeout)*time.Second)
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var exitCode int32
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if err != nil {
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exitError, ok := err.(utilexec.ExitError)
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if !ok {
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return nil, err
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}
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exitCode = int32(exitError.ExitStatus())
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}
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return &runtimeapi.ExecSyncResponse{
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Stdout: stdout,
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Stderr: stderr,
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ExitCode: exitCode,
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}, nil
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}
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func (d *dockerService) Exec(ctx context.Context, r *runtimeapi.ExecRequest) (*runtimeapi.ExecResponse, error) {
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return d.runtimeService.Exec(r)
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}
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func (d *dockerService) Attach(ctx context.Context, r *runtimeapi.AttachRequest) (*runtimeapi.AttachResponse, error) {
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return d.runtimeService.Attach(r)
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}
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func (d *dockerService) PortForward(ctx context.Context, r *runtimeapi.PortForwardRequest) (*runtimeapi.PortForwardResponse, error) {
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return d.runtimeService.PortForward(r)
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}
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func (d *dockerService) UpdateRuntimeConfig(ctx context.Context, r *runtimeapi.UpdateRuntimeConfigRequest) (*runtimeapi.UpdateRuntimeConfigResponse, error) {
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err := d.runtimeService.UpdateRuntimeConfig(r.GetRuntimeConfig())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.UpdateRuntimeConfigResponse{}, nil
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}
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func (d *dockerService) ListImages(ctx context.Context, r *runtimeapi.ListImagesRequest) (*runtimeapi.ListImagesResponse, error) {
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images, err := d.imageService.ListImages(r.GetFilter())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ListImagesResponse{Images: images}, nil
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}
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func (d *dockerService) ImageStatus(ctx context.Context, r *runtimeapi.ImageStatusRequest) (*runtimeapi.ImageStatusResponse, error) {
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image, err := d.imageService.ImageStatus(r.GetImage())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ImageStatusResponse{Image: image}, nil
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}
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func (d *dockerService) PullImage(ctx context.Context, r *runtimeapi.PullImageRequest) (*runtimeapi.PullImageResponse, error) {
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image, err := d.imageService.PullImage(r.GetImage(), r.GetAuth())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.PullImageResponse{ImageRef: image}, nil
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}
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func (d *dockerService) RemoveImage(ctx context.Context, r *runtimeapi.RemoveImageRequest) (*runtimeapi.RemoveImageResponse, error) {
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err := d.imageService.RemoveImage(r.GetImage())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.RemoveImageResponse{}, nil
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}
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// ImageFsInfo returns information of the filesystem that is used to store images.
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func (d *dockerService) ImageFsInfo(ctx context.Context, r *runtimeapi.ImageFsInfoRequest) (*runtimeapi.ImageFsInfoResponse, error) {
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filesystems, err := d.imageService.ImageFsInfo()
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ImageFsInfoResponse{ImageFilesystems: filesystems}, nil
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}
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func (d *dockerService) ContainerStats(ctx context.Context, r *runtimeapi.ContainerStatsRequest) (*runtimeapi.ContainerStatsResponse, error) {
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stats, err := d.runtimeService.ContainerStats(r.ContainerId)
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ContainerStatsResponse{Stats: stats}, nil
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}
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func (d *dockerService) ListContainerStats(ctx context.Context, r *runtimeapi.ListContainerStatsRequest) (*runtimeapi.ListContainerStatsResponse, error) {
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stats, err := d.runtimeService.ListContainerStats(r.GetFilter())
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if err != nil {
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return nil, err
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}
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return &runtimeapi.ListContainerStatsResponse{Stats: stats}, nil
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}
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