collectd

README

collectd

Mainly used to collect cpu, memory metrics correctly for container, k8s and non container environment.

Usage

go get -u github.com/v8fg/collectd

Feature

metrics	container	linux
cpu	Y	Y
memory	Y	Y

ENV

The go version shall >= 1.16

Documentation

Index

• func ParseCgroupFile(path string) (map[string]string, error)
• func RunningInDockerContainer() bool
• func RunningInDockerContainerPid(pid int32) bool
• type CpuInfoData
  • func CpuInfo(container bool, pid int32) CpuInfoData
• type MemInfoData
  • func MemInfo(container bool, pid int32) MemInfoData

Functions

func ParseCgroupFile

func ParseCgroupFile(path string) (map[string]string, error)

ParseCgroupFile parse cgroup file

func RunningInDockerContainer

func RunningInDockerContainer() bool

RunningInDockerContainer determine if it is running in the Container environment. Simply determine by the ways: 1: .dockerenv; 2: cgroups(normal pid=1 in docker)

func RunningInDockerContainerPid

func RunningInDockerContainerPid(pid int32) bool

RunningInDockerContainerPid determine if the process with pid is running in the Container environment. Simply determine by the ways: 1: .dockerenv; 2: cgroups(normal pid=1 in docker)

Types

type CpuInfoData

type CpuInfoData struct {
	Count     float64
	Used      float64
	Percent   float64
	Container int
}

CpuInfoData cpu info data

func CpuInfo

func CpuInfo(container bool, pid int32) CpuInfoData

CpuInfo read the cpu info for Container or not, with the special pid

type MemInfoData

type MemInfoData struct {
	Total     float64
	Used      float64
	Percent   float64
	Container int
}

MemInfoData memory info data

func MemInfo

func MemInfo(container bool, pid int32) MemInfoData

MemInfo read the memory info for Container or not, with the special pid