I use containers (
systemd-nspawn but I believe
lxc will be similar) and from the perspective of the host, users in containers (including
root) have specific UIDs, such as
Are these IDs allocated in a predictable way? I am particularly interested to understand if they are deterministic (a specific user in a specific container will always have the same UID, possibly after the first start of the container).
In other words, can I assume that user
root in the container
helloworld which is now seen as
3804364+ by the host will always be so? (after the container's or the host's reboot)
If not, is there a way to make such a mapping?