higher --default-ulimit option

Question

You can verify what setting a container has with:

 bash
$ docker exec -it 75f0e37a8ac5 sh -c "ulimit -n"
1024

该提问来源于开源项目：convox/rack

Answer 1

I verified that this does get picked up by docker:

$ ps axf | grep docker
 2675 ?        Sl     0:22 /usr/bin/docker daemon --default-ulimit nofile=1024:4096 --default-ulimit nofile=8192:32768 --insecure-registry=convox-826133048.us-east-1.elb

$ docker exec 7292bbbcc5e7 sh -c "ulimit -n"
8192