Weird locale issue

[velduz]

I installed Rundeck and code-server in a Proxmox LXC. Works great, except for a strange issue in the terminal window of the code server.

It cannot find the locale when I try to execute an ansible command.
But: when I login remotely in the LXC using ssh, then it works perfectly.
By the way, when I go into a new session by sudo su - johnny, then it works well too....

Not a very big issue, but I find it annoying that I can't understand what is wrong.

octopus is the hostname of the container. Johnny is the designated user for Ansible tasks.