Set docker container name and meta data as prometheus labels

[discordianfish]

cadvisor supports exposing metrics for prometheus consumption. Right now it only sets the container ID as a label but it would be useful to also set the container name and potential meta data[1] as labels.

1. https://docs.docker.com/userguide/labels-custom-metadata/

[MrMMorris]

yes please! I need to be able to differentiate containers as I don't name them and docker labels seems to be the best way to do it 😄

[tim-gp]

+1 here.

[jimmidyson]

Think docker container name & labels are now in the prometheus exposed metrics. Can this be closed?

[discordianfish]

Awesome, then it can be closed!

[Colstuwjx]

I have some docker envs which need to inject as prom labels, how to achieve that goal?
It seems that we need a more flexible way to determine prom labels...

[Colstuwjx]

I have been checked the source code, and found that cadvisor will set some default labels, and envs are already exist.

BTW, I also found that there is a ContainerSpec struct to determine the container metadata, but the env will be whitelist? How to setup these configs?

I cannot find any documentation about this, and I also suggest docker inspect result should have a simple way to inject as part of ContainerSpect, e.g Network IPAddress.