Kubernetes pod security policies uid/gid ranges

Question

I need to allow the ranges 0-1000, and 6000-7000 to be used for application deployments, and forbid all others.

Does this configuration will prevent someone to exec into pod/container and can switch to some other uid/gid?

Answer 1

Linux does not normally permit non-root users to exec as other UID/GIDs without something like sudo . As long as you also limit capabilities, privileged , privilege escalation and unsafe mount types, you can be fairly certain your pods will only run with processes as the UID/GIDs that you specify.