Semantic Conventions for Container Metrics

Status: Experimental

Container Metrics

Metric: container.cpu.time

This metric is opt-in.

Name	Instrument Type	Unit (UCUM)	Description	Stability
container.cpu.time	Counter	s	Total CPU time consumed [1]

[1]: Total CPU time consumed by the specific container on all available CPU cores

Attribute	Type	Description	Examples	Requirement Level	Stability
cpu.mode	string	The CPU mode for this data point. A container’s CPU metric SHOULD be characterized either by data points with no mode labels, or only data points with mode labels. [1]	user; system	Opt-In

[1]: Following states SHOULD be used: user, system, kernel

cpu.mode has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
idle	idle
interrupt	interrupt
iowait	iowait
kernel	kernel
nice	nice
steal	steal
system	system
user	user

Metric: container.memory.usage

This metric is opt-in.

Name	Instrument Type	Unit (UCUM)	Description	Stability
container.memory.usage	Counter	By	Memory usage of the container. [1]

[1]: Memory usage of the container.

Metric: container.disk.io

This metric is opt-in.

Name	Instrument Type	Unit (UCUM)	Description	Stability
container.disk.io	Counter	By	Disk bytes for the container. [1]

[1]: The total number of bytes read/written successfully (aggregated from all disks).

Attribute	Type	Description	Examples	Requirement Level	Stability
disk.io.direction	string	The disk IO operation direction.	read	Recommended
system.device	string	The device identifier	(identifier)	Recommended

disk.io.direction has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
read	read
write	write

Metric: container.network.io

This metric is opt-in.

Name	Instrument Type	Unit (UCUM)	Description	Stability
container.network.io	Counter	By	Network bytes for the container. [1]

[1]: The number of bytes sent/received on all network interfaces by the container.

Attribute	Type	Description	Examples	Requirement Level	Stability
network.io.direction	string	The network IO operation direction.	transmit	Recommended
system.device	string	The device identifier	(identifier)	Recommended

network.io.direction has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value	Description	Stability
receive	receive
transmit	transmit