stats

package
v1.2.0-rc1 Latest Latest
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Published: Apr 21, 2016 License: Apache-2.0, Apache-2.0 Imports: 26 Imported by: 0

Documentation

Overview

Package stats handles exporting Kubelet and container stats. NOTE: We intend to move this functionality into a standalone pod, so this package should be very loosely coupled to the rest of the Kubelet.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CreateHandlers

func CreateHandlers(provider StatsProvider, resourceAnalyzer ResourceAnalyzer) *restful.WebService

Types

type Cache added in v1.1.4

type Cache map[types.UID]*volumeStatCalculator

Map to PodVolumeStats pointers since the addresses for map values are not constant and can cause pain if we need ever to get a pointer to one of the values (e.g. you can't)

type PodVolumeStats added in v1.1.4

type PodVolumeStats struct {
	Volumes []stats.VolumeStats
}

PodVolumeStats encapsulates all VolumeStats for a pod

type ResourceAnalyzer added in v1.1.4

type ResourceAnalyzer interface {
	Start()
	// contains filtered or unexported methods
}

ResourceAnalyzer provides statistics on node resource consumption

func NewResourceAnalyzer added in v1.1.4

func NewResourceAnalyzer(statsProvider StatsProvider, calVolumeFrequency time.Duration) ResourceAnalyzer

NewResourceAnalyzer returns a new ResourceAnalyzer

type StatsProvider

type StatsProvider interface {
	GetContainerInfo(podFullName string, uid types.UID, containerName string, req *cadvisorapi.ContainerInfoRequest) (*cadvisorapi.ContainerInfo, error)
	GetContainerInfoV2(name string, options cadvisorapiv2.RequestOptions) (map[string]cadvisorapiv2.ContainerInfo, error)
	GetRawContainerInfo(containerName string, req *cadvisorapi.ContainerInfoRequest, subcontainers bool) (map[string]*cadvisorapi.ContainerInfo, error)
	GetPodByName(namespace, name string) (*api.Pod, bool)
	GetNode() (*api.Node, error)
	GetNodeConfig() cm.NodeConfig
	DockerImagesFsInfo() (cadvisorapiv2.FsInfo, error)
	RootFsInfo() (cadvisorapiv2.FsInfo, error)
	ListVolumesForPod(podUID types.UID) (map[string]volume.Volume, bool)
	GetPods() []*api.Pod
}

Host methods required by stats handlers.

type StatsRequest

type StatsRequest struct {
	// The name of the container for which to request stats.
	// Default: /
	ContainerName string `json:"containerName,omitempty"`

	// Max number of stats to return.
	// If start and end time are specified this limit is ignored.
	// Default: 60
	NumStats int `json:"num_stats,omitempty"`

	// Start time for which to query information.
	// If omitted, the beginning of time is assumed.
	Start time.Time `json:"start,omitempty"`

	// End time for which to query information.
	// If omitted, current time is assumed.
	End time.Time `json:"end,omitempty"`

	// Whether to also include information from subcontainers.
	// Default: false.
	Subcontainers bool `json:"subcontainers,omitempty"`
}

type SummaryProvider added in v1.1.4

type SummaryProvider interface {
	// Get provides a new Summary using the latest results from cadvisor
	Get() (*stats.Summary, error)
}

func NewSummaryProvider added in v1.1.4

func NewSummaryProvider(statsProvider StatsProvider, resourceAnalyzer ResourceAnalyzer) SummaryProvider

NewSummaryProvider returns a new SummaryProvider

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