Do you log with docker? What tools do you use? What are best practices?

[KarenS]

Interested in learning about logging use cases re: Docker specifically. Let me know some details about the solution you've found - I want to compile some best practices to think about.

I started this conversation on reddit too (http://redd.it/2ot4nl), but wanted to reach out to the hacker news community too.

[dholowiski]

I use docker in production, for a rails app. I used it because it lives on a server with other web sites and I find it a pain to install, configure and manage ruby and rails with nginx, so it was very appealing to have that all in a container and not have to worry about it.

But now I'm suffering from a year old docker bug on centos, and it's more of a pain than if i wasn't using it.

I'm sure its mostly my lack of knowledge, but my personal opinion of docker is 'not ready for production, yet'.

There is also a horrendous lack of documentation on the specifics of configuring docker for production, so you pretty much have to figure it out on your own.

[chuhnk]

I completely avoid the Docker logging because it completely sucks. Currently to deal with compatibility I mount a read/write volume and redirect stdout/stderr there. In the future I will have apps direct output to logging agents rather than disk, buffer in memory and then push to a central store. Avoids massive disk IO.