package cadvisor

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

Package cadvisor provides an interface for Kubelet interactions with cAdvisor.

Index ¶

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

Constants ¶

const (
	// CrioSocketSuffix is the path to the CRI-O socket.
	// Please keep this in sync with the one in:
	// github.com/google/cadvisor/tree/master/container/crio/client.go
	// Note that however we only match on the suffix, as /var/run is often a
	// symlink to /run, so the user can specify either path.
	CrioSocketSuffix = "run/crio/crio.sock"
)

Functions ¶

func CapacityFromMachineInfo ¶

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

CapacityFromMachineInfo returns the capacity of the resources from the machine info.

func EphemeralStorageCapacityFromFsInfo ¶

func EphemeralStorageCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceList

EphemeralStorageCapacityFromFsInfo returns the capacity of the ephemeral storage from the FsInfo.

func UsingLegacyCadvisorStats ¶

func UsingLegacyCadvisorStats(runtimeEndpoint string) bool

UsingLegacyCadvisorStats returns true if container stats are provided by cadvisor instead of through the CRI. CRI integrations should get container metrics via CRI. TODO: cri-o relies on cadvisor as a temporary workaround. The code should be removed. Related issue: https://github.com/kubernetes/kubernetes/issues/51798

Types ¶

type ImageFsInfoProvider ¶

type ImageFsInfoProvider interface {
	// ImageFsInfoLabel returns the label cAdvisor should use to find the filesystem holding container images.
	ImageFsInfoLabel() (string, error)
	// In split image filesystem this will be different from ImageFsInfoLabel
	ContainerFsInfoLabel() (string, error)
}

ImageFsInfoProvider informs cAdvisor how to find imagefs for container images.

func NewImageFsInfoProvider ¶

func NewImageFsInfoProvider(runtimeEndpoint string) ImageFsInfoProvider

NewImageFsInfoProvider returns a provider for the specified runtime configuration.

type Interface ¶

type Interface interface {
	Start() error
	ContainerInfoV2(name string, options cadvisorapiv2.RequestOptions) (map[string]cadvisorapiv2.ContainerInfo, error)
	GetRequestedContainersInfo(containerName string, options cadvisorapiv2.RequestOptions) (map[string]*cadvisorapi.ContainerInfo, error)
	MachineInfo() (*cadvisorapi.MachineInfo, error)

	VersionInfo() (*cadvisorapi.VersionInfo, error)

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

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

	// Returns usage information about the writeable layer.
	// KEP 4191 can separate the image filesystem
	ContainerFsInfo(context.Context) (cadvisorapiv2.FsInfo, 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 ¶

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

New creates a new cAdvisor Interface for linux systems.

Source Files ¶

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

Directories ¶