Needs flags to enable/disable printing colored log messages

[JasonWayne]

Ray will print colored log in console which is a very nice feature. However, some consoles do not support interpret the color info, so it becomes some ugly looking log messages. I think ray needs some flags to disable this colored print in such scenario.

ref: https://groups.google.com/forum/#!topic/ray-dev/SpGaKhXbWAY

[JasonWayne]

@richardliaw Pls help to check, thks.

[rkooo567]

This feature is requested by Dan (@kiralaz)

[kiralaz]

Thanks @rkooo567, it would be nice to be able to disable colored logging (perhaps via an environment variable?) as in our cloud jobs with ray we get some pretty ugly logs with prefixes like this [2m[36m(ActorName, pid=<pid>.... instead of just (ActorName, pid=...

[klazuka]

I would also like to be able to disable the colored output as well as disable the custom log formatting in general.

We use Datadog for all of our cloud-based logs, and our applications emit JSON log messages direct to stdout. We would like the Datadog agent running in the EKS cluster to be able to obtain the original JSON messages, without any additional formatting by Ray.

[npuichigo]

@rkooo567 kindly ask is there any update?