package cadvisor

import "k8s.io/kubernetes/pkg/kubelet/cadvisor"

Kubelet interactions with cAdvisor.

Index ¶

• Constants
• func CapacityFromMachineInfo(info *cadvisorapi.MachineInfo) v1.ResourceList
• func EphemeralStorageCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceList
• func UsingLegacyCadvisorStats(runtime, runtimeEndpoint string) bool
• type ImageFsInfoProvider
• func NewImageFsInfoProvider(runtime, runtimeEndpoint string) ImageFsInfoProvider
• type Interface
• func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats bool) (Interface, error)

Package Files ¶

cadvisor_linux.go doc.go helpers_linux.go types.go util.go

Constants ¶

const (
    // Please keep this in sync with the one in:
    // github.com/google/cadvisor/container/crio/client.go
    CrioSocket = "/var/run/crio/crio.sock"
)

func CapacityFromMachineInfo ¶ Uses

func CapacityFromMachineInfo(info *cadvisorapi.MachineInfo) v1.ResourceList

func EphemeralStorageCapacityFromFsInfo ¶ Uses

func EphemeralStorageCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceList

func UsingLegacyCadvisorStats ¶ Uses

func UsingLegacyCadvisorStats(runtime, runtimeEndpoint string) bool

CRI integrations should get container metrics via CRI. Docker uses the built-in cadvisor to gather such metrics on Linux for historical reasons. cri-o relies on cadvisor as a temporary workaround. The code should be removed. Related issue: https://github.com/kubernetes/kubernetes/issues/51798 UsingLegacyCadvisorStats returns true if container stats are provided by cadvisor instead of through the CRI

type ImageFsInfoProvider ¶ Uses

type ImageFsInfoProvider interface {
    // ImageFsInfoLabel returns the label cAdvisor should use to find the filesystem holding container images.
    ImageFsInfoLabel() (string, error)
}

ImageFsInfoProvider informs cAdvisor how to find imagefs for container images.

func NewImageFsInfoProvider ¶ Uses

func NewImageFsInfoProvider(runtime, runtimeEndpoint string) ImageFsInfoProvider

NewImageFsInfoProvider returns a provider for the specified runtime configuration.

type Interface ¶ Uses

type Interface interface {
    Start() error
    DockerContainer(name string, req *cadvisorapi.ContainerInfoRequest) (cadvisorapi.ContainerInfo, error)
    ContainerInfo(name string, req *cadvisorapi.ContainerInfoRequest) (*cadvisorapi.ContainerInfo, error)
    ContainerInfoV2(name string, options cadvisorapiv2.RequestOptions) (map[string]cadvisorapiv2.ContainerInfo, error)
    SubcontainerInfo(name string, req *cadvisorapi.ContainerInfoRequest) (map[string]*cadvisorapi.ContainerInfo, error)
    MachineInfo() (*cadvisorapi.MachineInfo, error)

    VersionInfo() (*cadvisorapi.VersionInfo, error)

    // Returns usage information about the filesystem holding container images.
    ImagesFsInfo() (cadvisorapiv2.FsInfo, error)

    // Returns usage information about the root filesystem.
    RootFsInfo() (cadvisorapiv2.FsInfo, error)

    // Get events streamed through passedChannel that fit the request.
    WatchEvents(request *events.Request) (*events.EventChannel, error)

    // Get filesystem information for the filesystem that contains the given file.
    GetDirFsInfo(path string) (cadvisorapiv2.FsInfo, error)
}

Interface is an abstract interface for testability. It abstracts the interface to cAdvisor.

func New ¶ Uses

func New(imageFsInfoProvider ImageFsInfoProvider, rootPath string, cgroupRoots []string, usingLegacyStats bool) (Interface, error)

Directories ¶