v2

Documentation

Index

• Constants
• type Attributes
  • func GetAttributes(mi *v1.MachineInfo, vi *v1.VersionInfo) Attributes
• type ContainerInfo
• type ContainerSpec
  • func ContainerSpecFromV1(specV1 *v1.ContainerSpec, aliases []string, namespace string) ContainerSpec
• type ContainerStats
  • func ContainerStatsFromV1(spec *v1.ContainerSpec, stats []*v1.ContainerStats) []*ContainerStats
• type CpuInstStats
  • func InstCpuStats(last, cur *v1.ContainerStats) (*CpuInstStats, error)
• type CpuInstUsage
• type CpuSpec
• type DeprecatedContainerStats
  • func DeprecatedStatsFromV1(cont *v1.ContainerInfo) []DeprecatedContainerStats
• type DerivedStats
• type DiskStats
• type FilesystemStats
• type FsInfo
• type InstantUsage
• type MachineFsStats
• type MachineStats
  • func MachineStatsFromV1(cont *v1.ContainerInfo) []MachineStats
• type MemorySpec
• type NetworkStats
• type Percentiles
• type ProcessInfo
• type RequestOptions
• type TcpStat
• type Usage

Constants

const (
	TypeName   = "name"
	TypeDocker = "docker"
)

Types

type Attributes

type Attributes struct {
	// Kernel version.
	KernelVersion string `json:"kernel_version"`

	// OS image being used for cadvisor container, or host image if running on host directly.
	ContainerOsVersion string `json:"container_os_version"`

	// Docker version.
	DockerVersion string `json:"docker_version"`

	// cAdvisor version.
	CadvisorVersion string `json:"cadvisor_version"`

	// The number of cores in this machine.
	NumCores int `json:"num_cores"`

	// Maximum clock speed for the cores, in KHz.
	CpuFrequency uint64 `json:"cpu_frequency_khz"`

	// The amount of memory (in bytes) in this machine
	MemoryCapacity uint64 `json:"memory_capacity"`

	// The machine id
	MachineID string `json:"machine_id"`

	// The system uuid
	SystemUUID string `json:"system_uuid"`

	// Filesystems on this machine.
	Filesystems []v1.FsInfo `json:"filesystems"`

	// Disk map
	DiskMap map[string]v1.DiskInfo `json:"disk_map"`

	// Network devices
	NetworkDevices []v1.NetInfo `json:"network_devices"`

	// Machine Topology
	// Describes cpu/memory layout and hierarchy.
	Topology []v1.Node `json:"topology"`

	// Cloud provider the machine belongs to
	CloudProvider v1.CloudProvider `json:"cloud_provider"`

	// Type of cloud instance (e.g. GCE standard) the machine is.
	InstanceType v1.InstanceType `json:"instance_type"`
}

func GetAttributes

func GetAttributes(mi *v1.MachineInfo, vi *v1.VersionInfo) Attributes

type ContainerInfo

type ContainerInfo struct {
	// Describes the container.
	Spec ContainerSpec `json:"spec,omitempty"`

	// Historical statistics gathered from the container.
	Stats []*ContainerStats `json:"stats,omitempty"`
}

type ContainerSpec

type ContainerSpec struct {
	// Time at which the container was created.
	CreationTime time.Time `json:"creation_time,omitempty"`

	// Other names by which the container is known within a certain namespace.
	// This is unique within that namespace.
	Aliases []string `json:"aliases,omitempty"`

	// Namespace under which the aliases of a container are unique.
	// An example of a namespace is "docker" for Docker containers.
	Namespace string `json:"namespace,omitempty"`

	// Metadata labels associated with this container.
	Labels map[string]string `json:"labels,omitempty"`
	// Metadata envs associated with this container. Only whitelisted envs are added.
	Envs map[string]string `json:"envs,omitempty"`

	HasCpu bool    `json:"has_cpu"`
	Cpu    CpuSpec `json:"cpu,omitempty"`

	HasMemory bool       `json:"has_memory"`
	Memory    MemorySpec `json:"memory,omitempty"`

	HasCustomMetrics bool            `json:"has_custom_metrics"`
	CustomMetrics    []v1.MetricSpec `json:"custom_metrics,omitempty"`

	// Following resources have no associated spec, but are being isolated.
	HasNetwork    bool `json:"has_network"`
	HasFilesystem bool `json:"has_filesystem"`
	HasDiskIo     bool `json:"has_diskio"`

	// Image name used for this container.
	Image string `json:"image,omitempty"`
}

func ContainerSpecFromV1

func ContainerSpecFromV1(specV1 *v1.ContainerSpec, aliases []string, namespace string) ContainerSpec

Get V2 container spec from v1 container info.

type ContainerStats

type ContainerStats struct {
	// The time of this stat point.
	Timestamp time.Time `json:"timestamp"`
	// CPU statistics
	// In nanoseconds (aggregated)
	Cpu *v1.CpuStats `json:"cpu,omitempty"`
	// In nanocores per second (instantaneous)
	CpuInst *CpuInstStats `json:"cpu_inst,omitempty"`
	// Disk IO statistics
	DiskIo *v1.DiskIoStats `json:"diskio,omitempty"`
	// Memory statistics
	Memory *v1.MemoryStats `json:"memory,omitempty"`
	// Network statistics
	Network *NetworkStats `json:"network,omitempty"`
	// Filesystem statistics
	Filesystem *FilesystemStats `json:"filesystem,omitempty"`
	// Task load statistics
	Load *v1.LoadStats `json:"load_stats,omitempty"`
	// Custom Metrics
	CustomMetrics map[string][]v1.MetricVal `json:"custom_metrics,omitempty"`
}

func ContainerStatsFromV1

func ContainerStatsFromV1(spec *v1.ContainerSpec, stats []*v1.ContainerStats) []*ContainerStats

type CpuInstStats

type CpuInstStats struct {
	Usage CpuInstUsage `json:"usage"`
}

Instantaneous CPU stats

func InstCpuStats

func InstCpuStats(last, cur *v1.ContainerStats) (*CpuInstStats, error)

type CpuInstUsage

type CpuInstUsage struct {
	// Total CPU usage.
	// Units: nanocores per second
	Total uint64 `json:"total"`

	// Per CPU/core usage of the container.
	// Unit: nanocores per second
	PerCpu []uint64 `json:"per_cpu_usage,omitempty"`

	// Time spent in user space.
	// Unit: nanocores per second
	User uint64 `json:"user"`

	// Time spent in kernel space.
	// Unit: nanocores per second
	System uint64 `json:"system"`
}

CPU usage time statistics.

type CpuSpec

type CpuSpec struct {
	// Requested cpu shares. Default is 1024.
	Limit uint64 `json:"limit"`
	// Requested cpu hard limit. Default is unlimited (0).
	// Units: milli-cpus.
	MaxLimit uint64 `json:"max_limit"`
	// Cpu affinity mask.
	// TODO(rjnagal): Add a library to convert mask string to set of cpu bitmask.
	Mask string `json:"mask,omitempty"`
	// CPUQuota Default is disabled
	Quota uint64 `json:"quota,omitempty"`
	// Period is the CPU reference time in ns e.g the quota is compared aginst this.
	Period uint64 `json:"period,omitempty"`
}

type DeprecatedContainerStats

type DeprecatedContainerStats struct {
	// The time of this stat point.
	Timestamp time.Time `json:"timestamp"`
	// CPU statistics
	HasCpu bool `json:"has_cpu"`
	// In nanoseconds (aggregated)
	Cpu v1.CpuStats `json:"cpu,omitempty"`
	// In nanocores per second (instantaneous)
	CpuInst *CpuInstStats `json:"cpu_inst,omitempty"`
	// Disk IO statistics
	HasDiskIo bool           `json:"has_diskio"`
	DiskIo    v1.DiskIoStats `json:"diskio,omitempty"`
	// Memory statistics
	HasMemory bool           `json:"has_memory"`
	Memory    v1.MemoryStats `json:"memory,omitempty"`
	// Network statistics
	HasNetwork bool         `json:"has_network"`
	Network    NetworkStats `json:"network,omitempty"`
	// Filesystem statistics
	HasFilesystem bool         `json:"has_filesystem"`
	Filesystem    []v1.FsStats `json:"filesystem,omitempty"`
	// Task load statistics
	HasLoad bool         `json:"has_load"`
	Load    v1.LoadStats `json:"load_stats,omitempty"`
	// Custom Metrics
	HasCustomMetrics bool                      `json:"has_custom_metrics"`
	CustomMetrics    map[string][]v1.MetricVal `json:"custom_metrics,omitempty"`
}

func DeprecatedStatsFromV1

func DeprecatedStatsFromV1(cont *v1.ContainerInfo) []DeprecatedContainerStats

type DerivedStats

type DerivedStats struct {
	// Time of generation of these stats.
	Timestamp time.Time `json:"timestamp"`
	// Latest instantaneous sample.
	LatestUsage InstantUsage `json:"latest_usage"`
	// Percentiles in last observed minute.
	MinuteUsage Usage `json:"minute_usage"`
	// Percentile in last hour.
	HourUsage Usage `json:"hour_usage"`
	// Percentile in last day.
	DayUsage Usage `json:"day_usage"`
}

type DiskStats

type DiskStats struct {
	// Number of reads completed
	// This is the total number of reads completed successfully.
	ReadsCompleted *uint64 `json:"reads_completed,omitempty"`

	// Number of reads merged
	// Reads and writes which are adjacent to each other may be merged for
	// efficiency.  Thus two 4K reads may become one 8K read before it is
	// ultimately handed to the disk, and so it will be counted (and queued)
	// as only one I/O.  This field lets you know how often this was done.
	ReadsMerged *uint64 `json:"reads_merged,omitempty"`

	// Number of sectors read
	// This is the total number of sectors read successfully.
	SectorsRead *uint64 `json:"sectors_read,omitempty"`

	// Time spent reading
	// This is the total number of milliseconds spent by all reads (as
	// measured from __make_request() to end_that_request_last()).
	ReadDuration *time.Duration `json:"read_duration,omitempty"`

	// Number of writes completed
	// This is the total number of writes completed successfully.
	WritesCompleted *uint64 `json:"writes_completed,omitempty"`

	// Number of writes merged
	// See the description of reads merged.
	WritesMerged *uint64 `json:"writes_merged,omitempty"`

	// Number of sectors written
	// This is the total number of sectors written successfully.
	SectorsWritten *uint64 `json:"sectors_written,omitempty"`

	// Time spent writing
	// This is the total number of milliseconds spent by all writes (as
	// measured from __make_request() to end_that_request_last()).
	WriteDuration *time.Duration `json:"write_duration,omitempty"`

	// Number of I/Os currently in progress
	// The only field that should go to zero. Incremented as requests are
	// given to appropriate struct request_queue and decremented as they finish.
	IoInProgress *uint64 `json:"io_in_progress,omitempty"`

	// Time spent doing I/Os
	// This field increases so long as field 9 is nonzero.
	IoDuration *time.Duration `json:"io_duration,omitempty"`

	// weighted time spent doing I/Os
	// This field is incremented at each I/O start, I/O completion, I/O
	// merge, or read of these stats by the number of I/Os in progress
	// (field 9) times the number of milliseconds spent doing I/O since the
	// last update of this field.  This can provide an easy measure of both
	// I/O completion time and the backlog that may be accumulating.
	WeightedIoDuration *time.Duration `json:"weighted_io_duration,omitempty"`
}

DiskStats contains per partition usage information. This information is only available at the machine level.

type FilesystemStats

type FilesystemStats struct {
	// Total Number of bytes consumed by container.
	TotalUsageBytes *uint64 `json:"totalUsageBytes,omitempty"`
	// Number of bytes consumed by a container through its root filesystem.
	BaseUsageBytes *uint64 `json:"baseUsageBytes,omitempty"`
}

Filesystem usage statistics.

type FsInfo

type FsInfo struct {
	// The block device name associated with the filesystem.
	Device string `json:"device"`

	// Path where the filesystem is mounted.
	Mountpoint string `json:"mountpoint"`

	// Filesystem usage in bytes.
	Capacity uint64 `json:"capacity"`

	// Bytes available for non-root use.
	Available uint64 `json:"available"`

	// Number of bytes used on this filesystem.
	Usage uint64 `json:"usage"`

	// Labels associated with this filesystem.
	Labels []string `json:"labels"`
}

type InstantUsage

type InstantUsage struct {
	// cpu rate in cpu milliseconds/second.
	Cpu uint64 `json:"cpu"`
	// Memory usage in bytes.
	Memory uint64 `json:"memory"`
}

latest sample collected for a container.

type MachineFsStats

type MachineFsStats struct {
	// The block device name associated with the filesystem.
	Device string `json:"device"`

	// Type of filesystem.
	Type string `json:"type"`

	// Number of bytes that can be consumed on this filesystem.
	Capacity *uint64 `json:"capacity,omitempty"`

	// Number of bytes that is currently consumed on this filesystem.
	Usage *uint64 `json:"usage,omitempty"`

	// Number of bytes available for non-root user on this filesystem.
	Available *uint64 `json:"available,omitempty"`

	// Number of inodes that are available on this filesystem.
	InodesFree *uint64 `json:"inodes_free,omitempty"`

	// DiskStats for this device.
	DiskStats `json:"inline"`
}

MachineFsStats contains per filesystem capacity and usage information.

type MachineStats

type MachineStats struct {
	// The time of this stat point.
	Timestamp time.Time `json:"timestamp"`
	// In nanoseconds (aggregated)
	Cpu *v1.CpuStats `json:"cpu,omitempty"`
	// In nanocores per second (instantaneous)
	CpuInst *CpuInstStats `json:"cpu_inst,omitempty"`
	// Memory statistics
	Memory *v1.MemoryStats `json:"memory,omitempty"`
	// Network statistics
	Network *NetworkStats `json:"network,omitempty"`
	// Filesystem statistics
	Filesystem []MachineFsStats `json:"filesystem,omitempty"`
	// Task load statistics
	Load *v1.LoadStats `json:"load_stats,omitempty"`
}

MachineStats contains usage statistics for the entire machine.

func MachineStatsFromV1

func MachineStatsFromV1(cont *v1.ContainerInfo) []MachineStats

type MemorySpec

type MemorySpec struct {
	// The amount of memory requested. Default is unlimited (-1).
	// Units: bytes.
	Limit uint64 `json:"limit,omitempty"`

	// The amount of guaranteed memory.  Default is 0.
	// Units: bytes.
	Reservation uint64 `json:"reservation,omitempty"`

	// The amount of swap space requested. Default is unlimited (-1).
	// Units: bytes.
	SwapLimit uint64 `json:"swap_limit,omitempty"`
}

type NetworkStats

type NetworkStats struct {
	// Network stats by interface.
	Interfaces []v1.InterfaceStats `json:"interfaces,omitempty"`
	// TCP connection stats (Established, Listen...)
	Tcp TcpStat `json:"tcp"`
	// TCP6 connection stats (Established, Listen...)
	Tcp6 TcpStat `json:"tcp6"`
}

type Percentiles

type Percentiles struct {
	// Indicates whether the stats are present or not.
	// If true, values below do not have any data.
	Present bool `json:"present"`
	// Average over the collected sample.
	Mean uint64 `json:"mean"`
	// Max seen over the collected sample.
	Max uint64 `json:"max"`
	// 50th percentile over the collected sample.
	Fifty uint64 `json:"fifty"`
	// 90th percentile over the collected sample.
	Ninety uint64 `json:"ninety"`
	// 95th percentile over the collected sample.
	NinetyFive uint64 `json:"ninetyfive"`
}

type ProcessInfo

type ProcessInfo struct {
	User          string  `json:"user"`
	Pid           int     `json:"pid"`
	Ppid          int     `json:"parent_pid"`
	StartTime     string  `json:"start_time"`
	PercentCpu    float32 `json:"percent_cpu"`
	PercentMemory float32 `json:"percent_mem"`
	RSS           uint64  `json:"rss"`
	VirtualSize   uint64  `json:"virtual_size"`
	Status        string  `json:"status"`
	RunningTime   string  `json:"running_time"`
	CgroupPath    string  `json:"cgroup_path"`
	Cmd           string  `json:"cmd"`
}

type RequestOptions

type RequestOptions struct {
	// Type of container identifier specified - "name", "dockerid", dockeralias"
	IdType string `json:"type"`
	// Number of stats to return
	Count int `json:"count"`
	// Whether to include stats for child subcontainers.
	Recursive bool `json:"recursive"`
}

type TcpStat

type TcpStat struct {
	Established uint64
	SynSent     uint64
	SynRecv     uint64
	FinWait1    uint64
	FinWait2    uint64
	TimeWait    uint64
	Close       uint64
	CloseWait   uint64
	LastAck     uint64
	Listen      uint64
	Closing     uint64
}

type Usage

type Usage struct {
	// Indicates amount of data available [0-100].
	// If we have data for half a day, we'll still process DayUsage,
	// but set PercentComplete to 50.
	PercentComplete int32 `json:"percent_complete"`
	// Mean, Max, and 90p cpu rate value in milliCpus/seconds. Converted to milliCpus to avoid floats.
	Cpu Percentiles `json:"cpu"`
	// Mean, Max, and 90p memory size in bytes.
	Memory Percentiles `json:"memory"`
}