systemctl disable not disabling service at container restart

[JCoupalK]

Inside my docker container running Ubuntu 22.04 when I do:

sudo systemctl disable nginx
sudo systemctl stop nginx

And then outside of it do a docker restart or docker stop and then start

My service comes back up.

But when I do sudo systemctl status nginx after a restart I get this which I found strange:

nginx.service - A high performance web server and a reverse proxy server
    Loaded: loaded (/usr/lib/systemd/system/nginx.service, disabled)
    Active: active (running)

The service is disabled but it somehow comes back up.

My dockerfile has CMD ["/usr/bin/systemctl"]

I'm new to this project so I'm not sure if that's normal behavior or not.

[gdraheim]

The system startup is actually doing a "systemctl start default.target" which is a symlink doing "systemctl start multi-user.target". In the nginx.service you find a declaration that it is a dependency of the multi-user.target.

The systemctl designers have a funcationality for you however - it is called "systemctl mask nginx".