cgroup

README

CGroup Input Plugin

This input plugin will capture specific statistics per cgroup.

Consider restricting paths to the set of cgroups you really want to monitor if you have a large number of cgroups, to avoid any cardinality issues.

Following file formats are supported:

• Single value

VAL\n

• New line separated values

VAL0\n
VAL1\n

• Space separated values

VAL0 VAL1 ...\n

• Space separated keys and value, separated by new line

KEY0 ... VAL0\n
KEY1 ... VAL1\n

Tags:

All measurements have the following tags:

• path

Configuration:

# Read specific statistics per cgroup
# [[inputs.cgroup]]
  ## Directories in which to look for files, globs are supported.
  ## Consider restricting paths to the set of cgroups you really
  ## want to monitor if you have a large number of cgroups, to avoid
  ## any cardinality issues.
  # paths = [
  #   "/sys/fs/cgroup/memory",
  #   "/sys/fs/cgroup/memory/child1",
  #   "/sys/fs/cgroup/memory/child2/*",
  # ]
  ## cgroup stat fields, as file names, globs are supported.
  ## these file names are appended to each path from above.
  # files = ["memory.*usage*", "memory.limit_in_bytes"]

usage examples:

# [[inputs.cgroup]]
  # paths = [
  #   "/sys/fs/cgroup/cpu",              # root cgroup
  #   "/sys/fs/cgroup/cpu/*",            # all container cgroups
  #   "/sys/fs/cgroup/cpu/*/*",          # all children cgroups under each container cgroup
  # ]
  # files = ["cpuacct.usage", "cpu.cfs_period_us", "cpu.cfs_quota_us"]

# [[inputs.cgroup]]
  # paths = [
  #   "/sys/fs/cgroup/unified/*",        # root cgroup
  # ]
  # files = ["*"]

Documentation

Index

• type CGroup
  • func (g *CGroup) Description() string
  • func (g *CGroup) Gather(acc telegraf.Accumulator) error
  • func (g *CGroup) SampleConfig() string

Types

type CGroup

type CGroup struct {
	Paths []string `toml:"paths"`
	Files []string `toml:"files"`
}

func (*CGroup) Description

func (g *CGroup) Description() string

func (*CGroup) Gather

func (g *CGroup) Gather(acc telegraf.Accumulator) error

func (*CGroup) SampleConfig

func (g *CGroup) SampleConfig() string