Docker Ignores limits.conf (trying to solve “too many open files” error)

Question

I\'m running a web server that is handling many thousands of concurrent web socket connections. For this to be possible, on Debian linux (my base image is google/debian:wheezy,

Answer 1

You can pass the limit as argument while running the container. That way you don't have to modify host's limits and give too much power to the container. Here is how:

docker run --ulimit nofile=5000:5000