Not able to set ulimit ( max open files) inside vms

[gpatel-fr]

@bmullan

So if you are logging into the container using ssh as some other “user” than root you might need to use sudo to execute the command.

I don’t think you are right on this point. I routinely access my containers using ssh and have no problem with ulimit. Actually sometimes there are problems using ulimit as root in a container:

Enable core dump in lxd container

I have configured the limits in the pam settings in pam.d and the /etc/security/limits.conf, and also tried the /etc/systemd/user.conf and /etc/systemd/system.conf. I turned debug on in the pam configuration, and can see that the process is trying to set the limit, but fails with the message I included in my last post: ualpha01 sudo: pam_limits(sudo:session): Could not set limit for 'core' to soft=8388608, hard=8388608: Operation not permitted; uid=0,euid=0

Anyway the OP says there are problems with using lxc config set, that’s before logging in the container.