Logrus log wrapper doesn't honor levels

[jacksontj]

Recently changes were made to the logrus log wrapper such that you can define a log level that all messages will be written at, but in reality logs have a level defined on the message (not at the logger). So the current logger is insufficient. I have created a simple wrapper (jacksontj/promxy@8069dfb) which does honor the log levels, would you be open to a PR with this inclusion? If so, would this be a new wrapper or an added option to the current one (if so, how would we configure that -- likely another option that sets some bool saying "honor log level")

[ChrisHines]

My apologies for the slow response.

I agree it would be nice to integrate the log/levels package to the log/logrus adapter more comprehensively.

In general I consider the Go kit log/logrus package a best effort community contribution. I haven't put any effort into making a high fidelity adapter simply because the use case seems dubious to me. But I'll happily take improvements. Submit a PR and I'll review it.

There is some previous discussion about this and another related issue at #929 if you haven't seen that. Maybe you can take a look at that and see if you have any ideas how to solve both issues.